Wide Angle Search for Planets

SuperWASP
	SuperWASP-South cameras on Optical Mechanics, Inc. equatorial mount
Alternative names	Wide Angle Search for Planets
Location(s)	Spain, South Africa
Coordinates	28°45′37″N 17°52′45″W / 28.7602°N 17.8793°W
Telescope style	astronomical survey
Replaced	WASP exoplanets
Website	www.superwasp.org
	Related media on Commons
	[edit on Wikidata]

WASP or Wide Angle Search for Planets is an international consortium of several academic organisations performing an ultra-wide angle search for exoplanets using transit photometry. The array of robotic telescopes aims to survey the entire sky, simultaneously monitoring many thousands of stars at an apparent visual magnitude from about 7 to 13.^[1]

WASP is the detection program composed of the Isaac Newton Group, IAC and six universities from the United Kingdom. The two continuously operating, robotic observatories cover the Northern and Southern Hemisphere, respectively. SuperWASP-North is at Roque de los Muchachos Observatory on the mountain of that name which dominates La Palma in the Canary Islands. WASP-South is at the South African Astronomical Observatory, Sutherland in the arid Roggeveld Mountains of South Africa. These use eight wide-angle cameras that simultaneously monitor the sky for planetary transit events and allow the monitoring of millions of stars simultaneously, enabling the detection of rare transit events.^[2]

Instruments used for follow-up characterization employing doppler spectroscopy to determine the exoplanet's mass include the HARPS spectrograph of ESO's 3.6-metre telescope as well as the Swiss Euler Telescope, both located at La Silla Observatory, Chile.^[3] WASP's design has also been adopted by the Next-Generation Transit Survey.^[4] As of 2016, the Extrasolar Planets Encyclopaedia data base contains a total of 2,107 extrasolar planets of which 118 were discoveries by WASP.^[5]

Equipment

WASP consists of two robotic observatories; SuperWASP-North at Roque de los Muchachos Observatory on the island of La Palma in the Canaries and WASP-South at the South African Astronomical Observatory, South Africa. Each observatory consists of an array of eight Canon 200 mm f1.8 lenses backed by high quality 2048 x 2048 science grade CCDs, the model used is the iKon-L^[6] manufactured by Andor Technology.^[7] The telescopes are mounted on an equatorial telescope mount built by Optical Mechanics, Inc.^[8] The large field of view of the Canon lenses gives each observatory a massive sky coverage of 490 square degrees per pointing.^[9]

Function

The observatories continuously monitor the sky, taking a set of images approximately once per minute, gathering up to 100 gigabytes of data per night. By using the transit method, data collected from WASP can be used to measure the brightness of each star in each image, and small dips in brightness caused by large planets passing in front of their parent stars can be searched for.

One of the main purpose of WASP was to revolutionize the understanding of planet formation, paving the way for future space missions searching for 'Earth'-like worlds.

Structure

WASP is operated by a consortium of academic institutions which include:

On 26 September 2006, the team reported the discovery of two extrasolar planets: WASP-1b (orbiting at 0.038 AU (6 million km) from star once every 2.5 days) and WASP-2b (orbiting three-quarters that radius once every 2 days).^[11]

On 31 October 2007, the team reported the discovery of three extrasolar planets: WASP-3b, WASP-4b and WASP-5b. All three planets are similar to Jovian mass and are so close to their respective stars that their orbital periods are all less than two days. These are among the shortest orbital periods discovered. The surface temperatures of the planets should be more than 2000 degrees Celsius, owing to their short distances from their respective stars. The WASP-4b and WASP-5b are the first planets discovered by the cameras and researchers in South Africa. WASP-3b is the third planet discovered by the equivalent in La Palma.

In August 2009, the discovery of WASP-17b was announced, believed to be the first planet ever discovered to orbit in the opposite direction to the spin of its star, WASP-17.

Discoveries and follow-up observations

Star	Constellation	Right ascension	Declination	App. mag.	Distance (ly)	Spectral type	Planet	Mass (`M`_J)	Radius (`R`_J)	Orbital period (d)	Semimajor axis (AU)	Orbital eccentricity	Inclination (°)	Discovery year
WASP-1	Andromeda	00^h 20^m 40^s	+31° 59′ 24″	11.79	1031	F7V	b	0.86	1.484	2.5199464	0.0382	0	88.65	2006
WASP-2	Delphinus	20^h 30^m 54^s	+06° 25′ 46″	11.98	493	K1V	b	0.847	1.079	2.15222144	0.03138	0	84.73	2006
WASP-3	Lyra	18^h 33^m 32^s	+35° 39′ 42″	10.64	727	F7V	b	2.06	1.454	1.8468372	0.0313	0	85.06	2007
WASP-4	Phoenix	23^h 34^m 15^s	−42° 03′ 41″	12.6	851	G7V	b	1.1215	1.363	1.33823187	0.02312	0	88.8	2007
WASP-5	Phoenix	23^h 57^m 24^s	−41° 16′ 38″	12.26	967	G4V	b	1.58	1.09	1.6284296	0.02683	0	85.8	2007
WASP-6	Aquarius	23^h 12^m 37^s	−22° 40′ 06″	12.4	1001	G8V	b	0.5	1.3	3.36	0.0269	0.054	88.47	2008
WASP-7	Microscopium	20^h 44^m 10^s	−39° 13′ 31″	9.51	460	F5V	b	0.96	0.915	4.954658	0.0618	0	89.6	2008
WASP-8	Sculptor	23^h 59^m 36.07^s	−35° 01′ 52.9″	9.9	160	G6	b	2.23	1.17	8.16	0.0793	0.3082	88.52	2008
WASP-8	Sculptor	23^h 59^m 36.07^s	−35° 01′ 52.9″	9.9	160	G6	c	9.45		4323	5.28	0		2014
WASP-10	Pegasus	23^h 15^m 58^s	+31° 27′ 46″	12.7	290	K5	b	3.06	1.08	3.0927616	0.0371	0.057	86.8	2008
WASP-11/HAT-P-10	Perseus	03^h 09^m 29^s	+30° 40′ 25″	11.89	408	K3V	b	0.460	1.045	3.7224690	0.0439	0	88.5	2008
WASP-12	Auriga	06^h 30^m 32.794^s	+29° 40′ 20.29″	11.7	871	G0V	b	1.404	1.736	1.0914222	0.02293	0	86	2008
WASP-13	Lynx	09^h 20^m 24.71^s	+33° 52′ 57.0″	10.7	509	G1V	b	0.485	1.365	4.353011	0.05379	0	85.64	2008
WASP-14	Boötes	14^h 33^m 06^s	+21° 53′ 41″	9.75	520	F5V	b	7.725	1.259	2.2437704	0.037	0.0903	84.79	2008
WASP-15	Hydra	13^h 55^m 42.71^s	−32° 09′ 34.6″	10.9	1005	F5	b	0.54	1.16	3.75	0.0472	0	85.5	2008
WASP-16	Virgo	14^h 18^m 43.92^s	−20° 16′ 31.8″	11.3	520	G3V	b	0.855	1.008	3.12	0.0421	0	85.22	2009
WASP-17	Scorpius	15^h 59^m 51^s	−28° 03′ 42″	11.6	1000	F6	b	0.486	1.991	3.735438	0.0515	0.028	86.83	2009
WASP-18	Phoenix	01^h 37^m 24.95^s	−45° 40′ 40.8″	9.29	330	F9	b	10.3	1.106	0.94145299	0.02026	0.0092	86	2009
WASP-19	Vela	09^h 43^m 40.077^s	−45° 39′ 33.06″	12.3	815	G8V	b	1.168	1.386	0.78884	0.01655	0.0046	79.4	2009
WASP-20	Cetus	00^h 20^m 38.53^s	−23° 56′ 08.6″	10.7	685	F9	b	0.31	1.459	4.9	0.06003		85.57	2011
WASP-21	Pegasus	23^h 09^m 58.23^s	+18° 23′ 46.0″	11.6	750	G3V	b	0.3	1.21	4.322506	0.052	0	87.29	2010
WASP-22	Eridanus	03^h 31^m 16.32^s	−23° 49′ 11.0″	12.0	980	G1	b	0.588	1.158	3.5327313	0.04698	0	88.26	2010
WASP-23	Puppis	06^h 44^m 31^s	−42° 45′ 43″	12.7		K1V	b	0.884	0.962	2.9444256	0.0376	< 0.062	88.39	2010
WASP-24	Virgo	15^h 08^m 51.72^s	+02° 20′ 36.1″	11.3	1080	F8-9	b	1.03	1.10	2.341	0.0359	0	85.71	2010
WASP-25	Hydra	13^h 01^m 26.36^s	−27° 31′ 20.0″	11.9	550	G4	b	0.58	1.26	3.765	0.0487	0	87.7	2010
WASP-26	Cetus	00^h 18^m 24.70^s	−15° 16′ 02.3″	11.3	815	G0	b	1.028	1.281	2.7566004	0.03985	0	82.91	2010
WASP-28 [ru]	Pisces	23^h 34^m 27.87^s	−01° 34′ 48.1″	12	1090	F8	b	1.12	0.91	3.409	0.0455	0.046	88.61	2010
WASP-29	Phoenix	23^h 51^m 31.08^s	−39° 54′ 24.2″	11.3	260	K4V	b	0.25	0.74	3.923	0.0456	0	87.96	2010
WASP-31 [ru]	Crater	11^h 17^m 45^s	−19° 03′ 17″	11.7	1305	F	b	0.478	1.537	3.405909	0.04657	0	84.54	2010
WASP-32	Pisces	00^h 15^m 51^s	+01° 12′ 02″	11.3		G	b	3.6	1.18	2.71865	0.0394	0.018	85.3	2010
WASP-33	Andromeda	02^h 26^m 51.05^s	+37° 33′ 01.7″	8.3	378	A5	b	< 4.59	1.438	1.21986967	0.02558	0	87.67	2010
WASP-34	Crater	11^h 01^m 36^s	−23° 51′ 38″	10.4	391	G5	b	0.59	1.22	4.3176782	0.0524	0.038	85.2	2010
WASP-35	Eridanus	5^h 4^m 19.63^s	−6° 13′ 47.36″	10.94	663	G0V	b	0.72	1.32	3.161575	0.04317	0	87.96	2011
WASP-36	Hydra	08^h 45^m 19.0^s	−08° 01′ 37″	12.7	1468	G2	b	2.279	1.269	1.53737	0.02624		83.65	2010
WASP-37	Virgo	14^h 47^m 46.62^s	+01° 03′ 53.4″	12.7	1102	G2	b	1.696	1.136	3.577471	0.04339	0	88.78	2010
WASP-38	Hercules	16^h 15^m 50^s	+10° 01′ 57″	9.42	359	F8	b	2.712	1.079	6.871815	0.07551	0.0321	88.69	2010
WASP-39 [ru]	Virgo	14^h 29^m 18^s	−03° 26′ 40″	12.11	750	G8	b	0.28	1.27	4.055259	0.0486	0	87.83	2011
WASP-40/HAT-P-27	Virgo	14^h 51^m 04.25^s	+05° 56′ 50.4″	12.21	665	G8	b	0.66	1.055	3.0395721	0.0403	0.078	84.98	2011
WASP-41	Centaurus	12^h 42^m 28.51^s	−30° 38′ 23.5″	11.6	587	G8V	b	0.92	1.21	3.052394	0.04	0	87.3	2010
WASP-41	Centaurus	12^h 42^m 28.51^s	−30° 38′ 23.5″	11.6	587	G8V	c	—	—	421.0	1.07	0.294	—	2015
WASP-42		12^h 51^m 55.62^s	−42° 04′ 25.2″	12.57		K1	b	0.5	1.08	4.98169	0.0458	0.06	88.25	2011
WASP-43	Sextans	10^h 19^m 38^s	−09° 48′ 23″	12.4		K7V	b	1.78	0.93	0.813475	0.0142	0	82.6	2011
WASP-44	Cetus	00^h 15^m 37^s	−11° 56′ 17″	12.9		G8V	b	0.889	1.14	2.4238039	0.03473	0	86.02	2011
WASP-45	Sculptor	00^h 20^m 57^s	−35° 59′ 54″	12		K2V	b	1.007	1.16	3.1260876	0.04054	0	84.47	2011
WASP-46	Indus	21^h 14^m 57^s	−55° 52′ 18″	12.9		G6V	b	2.101	1.31	1.43037	0.02448	0	82.63	2011
WASP-47	Aquarius	20^h 40^m 09.16^s	−00° 52′ 15.0″	11.9	652	G9V	b	1.14	1.15	4.15914	0.052	0	89.32	2011
							c	1.31	—	596.0	1.41	0.28	87.0	2015
							d	0.0428	0.331	9.0304	0.088	0.007	89.22	2015
							e	0.029	0.167	0.78961	0.0173	0.03	86.2	2015
WASP-48	Cygnus	19^h 24^m 39^s	+55° 28′ 23″	11.06		F/G	b	0.98	1.67	2.143634	0.03444	0	80.09	2011
WASP-49A	Canis Major	06^h 04^m 21.47^s	−16° 57′ 55.1″	11.36		G6	b	0.378	1.115	2.78174			84.89	2011
WASP-50	Eridanus	02^h 54^m 45^s	−10° 53′ 53″	11.6	750	G9	b	1.468	1.153	1.9550959	0.02945	0.009	84.74	2011
WASP-51/HAT-P-30	Draco	08^h 15^m 48^s	+05° 50′ 12″	10.36	629	F9	b	0.711	1.34	2.810595	0.0419	0.035	83.6	2011
WASP-52	Pegasus	23^h 13^m 59.0^s	+08° 45′ 41″	12	457	K2V	b	0.46	1.27	1.74978			85.35	2011
WASP-53	Cetus	2^h 7^m 38.22^s	−20° 39′ 43″	11.0	766	K3	b	0.094	1.2	3.31	0.04101	-	87.08	2011
WASP-54	Virgo	13^h 41^m 49.03^s	−00° 07′ 41″	10.42		F9V/IV	b	0.6	1.4	3.7				2011
WASP-55	Virgo	08^h 15^m 48^s	+05° 50′ 12″	11.8	1076		b	0.57	1.3	4.46563	0.0533		89.2	2011
WASP-56	Triangulum	02^h 13^m 27.90^s	+23° 30′ 20.2″	11.48		G6	b	0.6	1.2	4.6				2011
WASP-57	Libra	14^h 55^m 16.84^s	−02° 03′ 27.5″	13.34	1483	G6	b	0.8	1.1	2.8				2011
WASP-58	Lyra	18^h 18^m 48.0^s	+45° 10′ 19″	11.66	978	G2V	b	0.89	1.37	5.01718	0.0561		87.4	2011
WASP-59	Pegasus	23^h 18^m 30.0^s	+24° 53′ 21″	13	408	K5V	b	0.863	0.775	7.91959	0.0697	0.1		2011
WASP-60	Pegasus	23^h 15^m 58^s	+31° 27′ 46″	12.18	1305	G1V	b	0.5	0.86	4.305	0.0531	0	87.9	2011
WASP-61	Lepus	05^h 01^m 12.0^s	−26° 03′ 15″	12.5	1566	F7	b	2.06	1.24	3.8559	0.0514		89.35	2011
WASP-62	Dorado	05^h 48^m 34.0^s	−63° 59′ 18″	10.3	1566	F7	b	0.57	1.39	4.41195	0.0567		88.3	2011
WASP-63	Columba	06^h 17^m 21.0^s	−38° 19′ 24″	11.2	1076	G8	b	0.38	1.43	4.37809	0.574		87.8	2011
WASP-64	Canis Major	6^h 44^m 28^s	−32° 51′ 30″	12.29	1141	G7	b	1.217	1.244	1.57329	0.0264	0.04	86.7	2011
WASP-65 [ru]	Cancer	08^h 53^m 18^s	+08° 31′ 23″	11.9	1010	G6	b	1.55	1.112	2.3114243	0.0334	-		2011
WASP-66	Antlia	10^h 32^m 54.0^s	−34° 59′ 23″	11.6	1239	F4	b	2.32	1.39	4.08605	0.0546		85.9	2011
WASP-67	Sagittarius	19^h 42^m 59.0^s	−19° 56′ 58″	12.5	734	K0V	b	0.42	1.4	4.61442	0.0517		85.8	2011
WASP-68 [ru]	Sagittarius	20^h 20^m 22.98^s	−19° 18′ 52.9″	10.7		G0	b	0.95	1.24	5.08				2011
WASP-69	Aquarius	21^h 0^m 6^s	−5° 5′ 40″			K5	b [fr]	0.26	1.06	3.8681382	0.04525	0	86.7	2011
WASP-70A	Aquarius	21^h 01^m 54^s	−13° 26′ 00″	10.8	799	G4	b	0.59	1.16	3.713	0.0485	< 0.067	-	2011
WASP-71	Cetus	01^h 57^m 03.0^s	00° 45′ 32″	10.57	652	F8	b	2.258	1.5	2.90367			84.2	2012
WASP-72	Fornax	00^h 10^m 56.6^s	−30° 10′ 09″	9.6		F7	b	1.5461	1.27	2.21674	0.03708			2013
WASP-73 [ru]	Indus	21^h 19^m 47.91^s	−58° 08′ 56″	10.5		F9	b	1.88	1.16	4.087	0.05514			2013
WASP-74	Aquila	20^h 18^m 10.0^s	−01° 04′ 33″	9.7	391	F9	b	0.826	1.404	2.1377445	0.03443	0.0	79.86	2014
WASP-75	Cetus	01^h 31^m 18.2^s	−10:40:32°	11.45	848	F9	b	1.07	1.27	2.48419	0.0375		82	2013
WASP-76	Pisces	01^h 46^m 32.0^s	02° 42′ 02″	9.5	390	F7	b	0.92	1.83	1.80989	0.033		88	2013
WASP-77A	Cetus	02^h 28^m 37.0^s	−07° 03′ 38″	11.29		G8V	b	1.76	1.21	1.36003			89.4	2012
WASP-78	Eridanus	04^h 15^m 02.0^s	−22° 06′ 59″	12.0	1794	F8	b	1.16	1.75	2.17518	0.0415		89	2012
WASP-79	Eridanus	04^h 25^m 29.0^s	−30° 36′ 02″	10.1	783	F3	b	0.89	1.7	2.17518	0.0362		83.2	2012
WASP-80	Aquila	20^h 12^m 40.0^s	−02° 08′ 44″	11.88	196	K7V	b	0.554	0.952	3.06785	0.0346	0.07	89.92	2013
WASP-82	Orion	04^h 50^m 39^s	+01° 53′ 38″	10.1	650	F5	b	1.24	1.67	2.70578	0.0447		87.9	2013
WASP-83	Corvus	12^h 40^m 37.0^s	−19° 17′ 03″	12.9	978	G8	b	0.3	1.04	4.071252	0.059	0.0	88.9	2014
WASP-84	Hydra	08^h 44^m 26^s	+01° 50′ 36″		390	K0	b	0.694	0.942	8.52349	0.0771		88.368	2013
WASP-85A	Virgo	11^h 43^m 38.1^s	+06° 33′ 49.4″	11.2	407±260	G5	b	1.09	1.44	2.66	0.1138	~0	89.72	2014
WASP-86	Hercules	17^h 50^m 33.7^s	+36° 34′ 13″	10.66		F7	b	0.95	1.79	5.0316144	0.0617	0.0	84.45	2016
WASP-87 A	Centaurus	12^h 21^m 17.92^s	−52° 50′ 27.6″	10.7	780	F5	b	2.18	1.385	1.6827950	0.02946		81.07	2014
WASP-88	Indus	20^h 38^m 02.7^s	−48° 27′ 43.2″	11.4		F6	b	0.56	1.7	4.954	0.06432			2013
WASP-89	Capricornus	20^h 55^m 36.0^s	−18° 58′ 16″	13.1		K3	b	5.9	1.04	3.3564227	0.0427	0.193	89.4	2014
WASP-90	Equuleus	21^h 02^m 08^s	+07° 03′ 24″	11.7	1100	F6	b	0.63	1.63	3.91624	0.0562		82.1	2013
WASP-91	Tucana	23^h 51^m 23.0^s	−70° 09′ 10″	12.0		K3	b	1.34	1.03	2.798581	0.037	0.0	86.8	2017
WASP-92	Hercules	16^h 26^m 46.1^s	+51° 02′ 28″	13.18	1729	F7	b	0.805	1.461	2.1746742	0.0348	0.0	83.75	2016
WASP-93	Cassiopeia	00^h 37^m 50.0^s	+51° 17′ 20″	10.97	815	F4	b	1.47	1.597	2.7325321	0.04211	—	81.18	2016
WASP-94A	Microscopium	20^h 55^m 07.94^s	−34° 08′ 07.9″	10.1	587	F8	b	0.445	1.72	3.95	0.055	<0.13	88.7	2014
WASP-94B	Microscopium	20^h 55^m 09.16^s	−34° 08′ 07.9″	10.5	587	F9	b	≥0.617		2.008	0.0335			2014
WASP-95	Grus	21^h 02^m 08^s	−48° 00′ 11″	10.1		G2	b	1.13	1.21	2.18467	0.03416		88.4	2013
WASP-96	Phoenix	00^h 04^m 11^s	−47° 21′ 38″	12.2		G8	b	0.48	1.2	3.42526	0.0453		85.6	2013
WASP-97	Eridanus	01^h 38^m 25^s	−55° 46′ 19″	10.6		G5	b	1.32	1.13	2.07276	0.03303		88	2013
WASP-98	Eridanus	03^h 53^m 42^s	−34° 19′ 42″	13.0		G7	b	0.83	1.1	2.96264	0.036		86.3	2013
WASP-99	Eridanus	02^h 39^m 35^s	−50° 00′ 29″	9.5		F8	b	2.78	1.1	5.75251	0.0717		88.8	2013
WASP-100	Reticulum	04^h 35^m 50^s	−64° 01′ 37″	10.8		F2	b	2.03	1.69	2.84938	0.0457		82.6	2013
WASP-101	Canis Major	06^h 33^m 24^s	−23° 29′ 10″	10.3		F6	b	0.5	1.41	3.58572	0.0506		85	2013
WASP-102	Pegasus	22^h 25^m 51.4^s	15° 51′ 24″	12.73		G0	b	0.624	1.259	2.709813	0.0401	—	89.73	2016
WASP-103	Hercules	16^h 37^m 15.5^s	+07° 11′ 00.07″	12.1		F8	b	1.49	1.53	0.925	0.01985		86.3	2014
WASP-104	Leo	10^h 42^m 24.61^s	+07° 26′ 6.3″	11.12	466	G8	b	1.272	1.137	1.7554137	0.02918		83.63	2014
WASP-105	Phoenix	01^h 36^m 40.0^s	−50° 39′ 32″	12.10		K2	b	1.8	0.96	7.87288	0.075	0.0	89.7	2017
WASP-106	Leo	11^h 05^m 43.13^s	−05° 04′ 45.9″	11.21	923	F9	b	1.925	1.085	9.289715	0.0917		89.49	2014
WASP-107 [ru]	Virgo	12^h 33^m 32.85^s	−10° 8′ 46.14″	11.6	208.7	K6V	b	0.12	0.94	5.72149	0.055	-	-	2017
WASP-108	Centaurus	13^h 03^m 19^s	−49° 38′ 23″	11.2	717	F9	b	1.167	1.215	2.6755463	0.0397		88.49	2014
WASP-109	Libra	15^h 28^m 13.0^s	−16° 24′ 39″	11.4	1076	F4	b	0.91	1.443	3.3190233	0.0463		84.28	2014
WASP-110	Sagittarius	20^h 23^m 30^s	−44° 03′ 30″	12.3	1043	G9	b	0.515	1.238	3.7783977	0.0457		88.06	2014
WASP-111	Capricornus	21^h 55^m 04^s	−22° 36′ 45″	10.3	684	F5	b	1.83	1.442	2.310965	0.03914		81.61	2014
WASP-112 [ru]	Piscis Austrinus	22^h 37^m 57^s	−35° 09′ 14″	13.3	1337	G6	b	0.88	1.191	3.0353992	0.0382		88.68	2014
WASP-113	Boötes	14^h 59^m 29.0^s	+46° 57′ 36″	11.80	1174	G1	b	0.475	1.409	4.54216874538	0.05885	0.0	86.46	2016
WASP-114	Pegasus	21^h 50^m 40.0^s	10° 27′ 47″	12.74	1500	G0	b	1.769	1.339	1.5487743	0.02851	0.012	83.96	2016
WASP-117 [ru]		02^h 27^m 06.09^s	−50° 17′ 04.3″	10.15		F9V	b	0.2755	1.021	10.02165	0.09459	0.302	89.14	2014^[12]
WASP-118	Pisces	01^h 18^m 12.0^s	02° 42′ 10″	11.02	815	F6	b	0.514	1.44	4.0460435	0.05453	—	88.7	2016
WASP-119	Reticulum	03^h 43^m 46.0^s	−65° 11′ 38″	12.2	1086	G5	b	1.23	1.4	2.49979	0.0363	0.058	85.0	2016
WASP-120	Horologium	04^h 10^m 28.0^s	−45° 53′ 54″	11		F5	b	5.06	1.515	3.6112706	0.0522	0.059	82.29	2015
WASP-121	Puppis	7^h 10^m 24.0595^s	−39° 5′ 50.562″	11.0	850	F6V	b	1.184	1.81	1.275	0.02544	0	87.6	2015
WASP-122	Puppis	07^h 13^m 12.0^s	−42° 24′ 35″	11.0		G4	b	1.401	1.792	1.7100567	0.03107	0.0	78.35	2015
WASP-123	Sagittarius	19^h 17^m 55.0^s	−32° 51′ 36″	11.1		G5	b	0.92	1.327	2.977641	0.0431	0.0	85.79	2015
WASP-124	Piscis Austrinus	22^h 10^m 51.0^s	−30° 44′ 58″	12.7	1412	F9	b	0.6	1.24	3.37265	0.0499	0.017	86.3	2016
WASP-126	Hydrus	04^h 13^m 30.0^s	−69° 13′ 37″	10.8	763	G2	b	0.2841	0.96	3.2888	0.0449	0.18	87.9	2016
WASP-127 [ru]	Sextans	10^h 42^m 14.08^s	−03° 50′ 6.26″	10.2	522	G5	b	0.18	1.37	4.17806	0.052	0	-	2016
WASP-128	Centaurus	11^h 31^m 26.1^s	−41° 41′ 22″	12.5	1376	G0V	b	37.19	0.937	2.20883665	0.0359	0.0	89.1	2018
WASP-129	Centaurus	11^h 45^m 12.0^s	−42° 03′ 50″	12.3	802	G1	b	1.0	0.93	5.748145	0.0628	0.096	87.7	2016
WASP-130	Centaurus	13^h 32^m 5.0^s	−42° 28′ 31″	11.1	587	G6	b	1.23	0.89	11.55098	0.1012	0.0	88.66	2016
WASP-131	Centaurus	14^h 00^m 46.0^s	−30° 35′ 01″	10.1	815	G0	b	0.27	1.22	5.322023	0.0607	0.0	85.0	2016
WASP-132	Lupus	14^h 30^m 26.0^s	−46° 09′ 33″	12.4	391	K4	b	0.41	0.87	7.133521	0.067	0.0	89.6	2016
WASP-133	Microscopium	20^h 58^m 18.0^s	−35° 47′ 48″	12.9	1491	G4	b	1.16	1.21	2.176423	0.0345	0.17	87.0	2016
WASP-134	Pegasus	21^h 50^m 17.0^s	04° 11′ 40″	11.3	636	G4	b	1.412	0.988	10.1467583	0.0956	0.1447	89.13	2018
WASP-134	Pegasus	21^h 50^m 17.0^s	04° 11′ 40″	11.3	636	G4	c	—	—	70.01	—	0.173	—	2018
WASP-135	Hercules	17^h 49^m 08.0^s	+29° 52′ 45″	13.3	978	G5	b	1.9	1.3	1.4013794	0.0243	0.0	82.0	2015
WASP-136 [ru]	Cetus	0^h 1^m 18.17^s	−8° 55′ 34.6″	10.39	906	F5	b	1.51	1.38	5.22	0.0661	0	84.7	2016
WASP-137	Cetus	01^h 43^m 29.0^s	−14° 08′ 57″	11	801	G0	b	0.681	1.27	3.9080284	0.0519	0.14	84.59	2018
WASP-138	Cetus	2^h 46^m 33.37^s	−0° 27′ 50″	12.28		F9	b	1.22	1.09	3.6	0.0494	0	88.5	2016^[13]
WASP-139	Eridanus	03^h 18^m 15.0^s	−41° 18′ 08″	12.4	750	K0	b	0.117	0.8	5.924262	0.062	0.0	88.9	2016
WASP-140	Eridanus	01^h 38^m 25.0^s	−55° 46′ 19″	11.1	587	K0	b	2.44	1.44	2.2359835	0.0323	0.047	83.3	2016
WASP-141	Eridanus	04^h 47^m 18.0^s	−17° 06′ 55″	12.4	1859	F9	b	2.69	1.21	3.310651	0.0469	0.0	87.6	2016
WASP-142	Hydra	09^h 23^m 23.0^s	−23° 56′ 46″	12.3	2740	F8	b	0.84	1.53	2.052868	0.0347	0.0	80.2	2016
WASP-143	Hydra	09^h 22^m 02.0^s	+02° 55′ 57″	12.6	1115	G1	b	0.725	1.234	3.778873	0.049	0.0007	89.0	-
WASP-144	Microscopium	21^h 23^m 03.0^s	−40° 02′ 54″	12.9		K2V	b	0.44	0.85	2.2783152	0.0316	0.0	86.9	2018
WASP-145A	Indus	21^h 29^m 01.0^s	−58° 50′ 10″	11.5		K2V	b	0.89	0.9	—	0.0261	0.0	83.3	2018
WASP-146	Cetus	23^h 56^m 22.0^s	−13° 16′ 18″	12.90	1373	G0	b	1.11	1.228	3.396944	0.0451	0.15	83.96	2018
WASP-147	Aquarius	23^h 56^m 46.0^s	−22° 09′ 11″	12.31	1389	G4	b	0.275	1.115	4.60273	0.0549	0.0	87.9	2018
WASP-148	Hercules	16^h 56^m 31.0^s	+44° 18′ 09″	12.00	809		b [id]	0.29	0.72	8.80381	0.0845	0.22	89.8	2020
WASP-148	Hercules	16^h 56^m 31.0^s	+44° 18′ 09″	12.00	809		c	—	—	34.516	0.21	0.359	—	2020
WASP-150	Draco	17^h 37^m 03.0^s	+53° 01′ 16″	12.00	1748		b	8.46	1.07	5.644207	0.0694	0.3775	84.01	2020
WASP-151	Pisces	23^h 16^m 15.2^s	00° 18′ 24″	12.9	1566	G1	b	0.31	1.13	4.533471	0.055	0.0	89.2	2017
WASP-152	Taurus	04^h 10^m 41.0^s	24° 24′ 07″	12.56		G7V	b	0.73	1.19	3.2588321	0.04217	0.066	86.656	2016
WASP-153	Lyra	18^h 37^m 03.0^s	+40° 01′ 07″	12.8	1402		b	0.39	1.55	3.332609	0.048	0.0	84.1	2017
WASP-156	Cetus	02^h 11^m 07.6^s	+02° 25′ 05″	11.6	457	K3	b	0.128	0.51	3.836169	0.0453	0.0	89.1	2017
WASP-157 [ru]	Virgo	13^h 26^m 37.25^s	−8° 19′ 3.22″	12.91	1545	G2V	b	0.576	1.045	3.9516205	0.0529	0	-	2016
WASP-158	Cetus	00^h 16^m 35.0^s	−10° 58′ 35″	12.1		F6V	b	2.79	1.07	—	0.0517	0.0	87.7	2018
WASP-159	Caelum	04^h 32^m 33.0^s	−38° 58′ 06″	12.8	-	F9	b	0.55	1.38	3.840401	0.0538	0.0	88.1	2018
WASP-160B	Columba	05^h 50^m 43.1^s	−27° 37′ 23″	13.09	-	K0V	b	0.281	1.093	3.768495	0.0455	0.0	89.02	2018
WASP-161	Hydra	08^h 25^m 21.1^s	−11° 30′ 04″	11.09		F6	b	2.49	1.143	5.4060425	0.0673	—	89.01	2018
WASP-162	Crater	11^h 13^m 10.0^s	−17° 39′ 28″	12.2		K0	b	5.2	1.0	9.62468	0.0871	0.434	89.3	2018
WASP-163	Ophiuchus	17^h 06^m 09.0^s	−10° 24′ 47″	12.54		G8	b	1.87	1.202	1.6096884	0.0266	—	85.42	2018
WASP-164	Tucana	22^h 59^m 29.6^s	−60° 26′ 52″	12.62		G2V	b	2.13	1.128	1.7771255	0.02818	0.0	82.73	2018
WASP-165	Aquarius	23^h 50^m 19.3^s	−17° 04′ 39″	12.69	-	G6	b	0.658	1.26	3.465509	0.04823	0.0	84.9	2018
WASP-166	Hydra	09^h 39^m 30.0^s	−20° 58′ 57″	9.36	369	F9	b	0.102	0.63	5.443526	0.0642	0.0	87.8	2018
WASP-167 [ru]	Centaurus	13^h 4^m 10.53^s	−35° 32′ 58.28″	10.5	1430	F1V	b	8.0	-	2.0219591	0.0365	-	-	2017
WASP-168	Puppis	06^h 26^m 59.0^s	−46° 49′ 17″	11.0		F9V	b	0.42	1.5	4.153658	0.0519	0.0	84.4	2018
WASP-169	Hydra	08^h 29^m 33.0^s	−12° 56′ 41″	12.2	2081		b	0.561	1.304	5.6114118	0.0681	0.0	87.9	2019
WASP-170	Pyxis	09^h 01^m 39.9^s	−20° 43′ 14″	12.79		G1	b	1.6	1.096	2.34478022	0.0337	—	84.87	2018
WASP-171	Centaurus	11^h 27^m 23.0^s	−44° 05′ 19″	13	2524		b	1.084	0.988	3.8186244	0.0504	0.0	88.3	2019
WASP-172	Centaurus	13^h 17^m 44.0^s	−47° 14′ 15″	11.0	-	F1V	b	0.47	1.57	5.477433	0.0694	0.0	86.7	2018
WASP-173A	Sculptor	23^h 36^m 40.0^s	−34° 36′ 41″	11.3		G3	b	3.69	1.2	1.38665318	0.0248	0.0	85.2	2018
WASP-175	Hydra	11^h 05^m 17.0^s	−34° 07′ 20″	12	1905		b	0.99	1.208	3.0652907	0.044	0.0	85.33	2019
WASP-176	Delphinus	20^h 54^m 45.0^s	+09° 10′ 45″	12.00	1885		b	0.855	1.505	3.899052	0.0535	0.0	86.7	2020
WASP-177	Aquarius	22^h 19^m 11.0^s	−01° 50′ 04″	11.6	581	K2	b	0.508	1.58	3.071722	0.03957	—	84.14	2019
WASP-178	Lupus	15^h 09^m 05.0^s	−42° 42′ 18″	9.95	1363	A1IV-V	b	1.66	1.81	3.3448285	0.0558	0.0	85.7	2019
WASP-181	Pisces	01^h 47^m 10.0^s	03° 07′ 59″	10.0	1445	G2	b	0.299	1.184	4.5195064	0.05427	—	88.38	2019
WASP-182	Microscopium	20^h 46^m 42.0^s	−41° 49′ 15″	12	1080		b	0.148	0.85	3.3769848	0.0451	0.0	83.88	2019
WASP-183	Leo	10^h 55^m 09.0^s	−00° 44′ 14″	12.76	1070	G9/K0	b	0.502	1.47	4.1117771	0.04632	—	85.37	2019
WASP-184	Centaurus	13^h 58^m 04.0^s	−30° 20′ 53″	12.9	2087	F1V	b	0.57	1.33	5.1817	0.0627	0.0	86.9	2019
WASP-189	Libra	15^h 02^m 44.9^s	−03° 01′ 53″	6.60	323	A6IV-V	b	2.13	1.374	2.724033	0.0497	0.0	84.321	2018

WASP-9b was determined to be a false positive after its initial public announcement as a planet, and the identifier has not been subsequently reassigned to a real planetary system.^[14]

1SWASP J140747.93-394542.6 b

The discovery of the J1407 system and its unusual eclipses were first reported by a team led by University of Rochester astronomer Eric Mamajek in 2012.^[15] The existence and parameters of the ring system around the substellar companion J1407b were deduced from the observation of a very long and complex eclipse of the previously anonymous star J1407 during a 56-day period during April and May 2007.^[15]^[16] The low-mass companion J1407b has been referred to as a "Saturn on steroids"^[17]^[18] or "Super Saturn"^[19] due to its massive system of circumplanetary rings with a radius of approximately 90 million km (0.6 AU).^[20] The orbital period of the ringed companion J1407b is estimated to be around a decade (constrained to 3.5 to 13.8 years), and its most probable mass is approximately 13 to 26 Jupiter masses, but with considerable uncertainty.^[20] The ringed body can be ruled out as being a star with mass of over 80 Jupiter masses at greater than 99% confidence.^[20] The ring system has an estimated mass similar to that of the Earth.^[21] A gap in the ring system at about 61 million km (0.4 AU) from its centre is considered to be indirect evidence of the existence of an exomoon with mass up to 0.8 Earth masses.^[20]

References

^ "The WASP Project and the SuperWASP Cameras". The Publications of the Astronomical Society of the Pacific. 118 (848): 1407–1418. 2016. arXiv:astro-ph/0608454. Bibcode:2006PASP..118.1407P. doi:10.1086/508556. S2CID 24601511. {{cite journal}}: Unknown parameter |authors= ignored (help)
^ "SuperWASP Survey Information". NASA Exoplanet Science Institute. 5 February 2015.
^ "WASP-8b: a retrograde transiting planet in a multiple system". Astronomy and Astrophysics. 517: L1. 2010. arXiv:1006.5089. Bibcode:2010A&A...517L...1Q. doi:10.1051/0004-6361/201014768. S2CID 35774603. {{cite journal}}: Unknown parameter |authors= ignored (help)
^ "Searching for Super-Earths" (PDF). Queen's University. 2014. Retrieved 1 September 2015.
^ "Catalog". Extrasolar Planets Encyclopaedia. Retrieved 1 April 2016.
^ "Technical". 16 December 2013.
^ "Home". andor.com.
^ "OMI News". Archived from the original on 28 December 2007. Retrieved 14 February 2009.
^ Current status of the SuperWASP project, D. J. Christian et al.
^ "Hubble observes exoplanet atmosphere in more detail than ever before". spacetelescope.org. Retrieved 1 March 2018.
^ Collier Cameron, A; Bouchy, F; Hébrard, G; Maxted, P; Pollacco, D; Pont, F; Skillen, I; Smalley, B; Street, R. A; West, R. G; Wilson, D. M; Aigrain, S; Christian, D. J; Clarkson, W. I; Enoch, B; Evans, A; Fitzsimmons, A; Fleenor, M; Gillon, M; Haswell, C. A; Hebb, L; Hellier, C; Hodgkin, S. T; Horne, K; Irwin, J; Kane, S. R; Keenan, F. P; Loeillet, B; Lister, T. A; et al. (2007). "WASP-1b and WASP-2b: Two new transiting exoplanets detected with SuperWASP and SOPHIE". Monthly Notices of the Royal Astronomical Society. 375 (3): 951–957. arXiv:astro-ph/0609688. Bibcode:2007MNRAS.375..951C. doi:10.1111/j.1365-2966.2006.11350.x. S2CID 735515.{{cite journal}}: CS1 maint: unflagged free DOI (link)
^ Lendl, M; Triaud, A. H. M. J; Anderson, D. R; Collier Cameron, A; Delrez, L; Doyle, A. P; Gillon, M; Hellier, C; Jehin, E; Maxted, P. F. L; Neveu-Vanmalle, M; Pepe, F; Pollacco, D; Queloz, D; Ségransan, D; Smalley, B; Smith, A. M. S; Udry, S; Van Grootel, V; West, R. G (2014). "WASP-117b: A 10-day-period Saturn in an eccentric and misaligned orbit". Astronomy and Astrophysics. 568: A81. arXiv:1406.6942. Bibcode:2014A&A...568A..81L. doi:10.1051/0004-6361/201424481. S2CID 54605901.
^ Lam, K. W. F; Faedi, F; Brown, D. J. A; Anderson, D. R; Delrez, L; Gillon, M; Hébrard, G; Lendl, M; Mancini, L; Southworth, J; Smalley, B; Triaud, A. H. M; Turner, O. D; Hay, K. L; Armstrong, D. J; Barros, S. C. C; Bonomo, A. S; Bouchy, F; Boumis, P; Collier Cameron, A; Doyle, A. P; Hellier, C; Henning, T; Jehin, E; King, G; Kirk, J; Louden, T; Maxted, P. F. L; McCormac, J. J; et al. (2017). "From dense hot Jupiter to low-density Neptune: The discovery of WASP-127b, WASP-136b, and WASP-138b". Astronomy and Astrophysics. 599 (3): A3. arXiv:1607.07859. Bibcode:2017A&A...599A...3L. doi:10.1051/0004-6361/201629403. S2CID 5953163.
^ "Impact of stellar companions on precise radial velocities". Astronomy and Astrophysics. 550: A75. 2013. arXiv:1212.2848. Bibcode:2013A&A...550A..75C. doi:10.1051/0004-6361/201220083. S2CID 53955379. {{cite journal}}: Unknown parameter |authors= ignored (help)
^ ^a ^b Mamajek, Eric E.; Quillen, Alice C.; Pecaut, Mark J.; Moolekamp, Fred; Scott, Erin L.; Kenworthy, Matthew A.; Collier Cameron, Andrew; Parley, Neil R. (March 2012). "Planetary Construction Zones in Occultation: Discovery of an Extrasolar Ring System Transiting a Young Sun-like Star and Future Prospects for Detecting Eclipses by Circumsecondary and Circumplanetary Disks". The Astronomical Journal. 143 (3): 72. arXiv:1108.4070. Bibcode:2012AJ....143...72M. doi:10.1088/0004-6256/143/3/72. S2CID 55818711.
^ "Eclipsing Ring System J1407". Cerro Tololo Inter-American Observatory. 22 June 2012. Retrieved 27 January 2015.
^ St. Fleur, Nicholas (13 October 2016). "Distant Ringed Object Could Be 'Saturn on Steroids'". New York Times.
^ O'Neill, Ian (12 January 2012). "'Saturn on Steroids' Exoplanet Discovered?". Discovery News.
^ Gigantic ring system around J1407b much larger, heavier than Saturn's, on University of Rochester website.
^ ^a ^b ^c ^d Kenworthy, Matthew A.; Mamajek, Eric E. (22 January 2015). "Modeling giant extrasolar ring systems in eclipse and the case of J1407b: sculpting by exomoons?". The Astrophysical Journal. 800 (2): 126. arXiv:1501.05652. Bibcode:2015ApJ...800..126K. doi:10.1088/0004-637X/800/2/126. S2CID 56118870.
^ "Gigantic ring system around J1407b much larger, heavier than Saturn's". University of Rochester. 26 January 2015.

External links

News items

QUB in April 2008
Reaching for the stars in October 2007
BBC News report: Planets have scientists buzzing in September 2006

Video clips

Keele University
McCormac, James. "Planet Hunting". Deep Space Videos. Brady Haran.

[1] "The WASP Project and the SuperWASP Cameras". The Publications of the Astronomical Society of the Pacific. 118 (848): 1407–1418. 2016. arXiv:astro-ph/0608454. Bibcode:2006PASP..118.1407P. doi:10.1086/508556. S2CID 24601511. {{cite journal}}: Unknown parameter |authors= ignored (help)

[2] "SuperWASP Survey Information". NASA Exoplanet Science Institute. 5 February 2015.

[3] "WASP-8b: a retrograde transiting planet in a multiple system". Astronomy and Astrophysics. 517: L1. 2010. arXiv:1006.5089. Bibcode:2010A&A...517L...1Q. doi:10.1051/0004-6361/201014768. S2CID 35774603. {{cite journal}}: Unknown parameter |authors= ignored (help)

[4] "Searching for Super-Earths" (PDF). Queen's University. 2014. Retrieved 1 September 2015.

[5] "Catalog". Extrasolar Planets Encyclopaedia. Retrieved 1 April 2016.

[6] "Technical". 16 December 2013.

[7] "Home". andor.com.

[8] "OMI News". Archived from the original on 28 December 2007. Retrieved 14 February 2009.

[9] Current status of the SuperWASP project, D. J. Christian et al.

[10] "Hubble observes exoplanet atmosphere in more detail than ever before". spacetelescope.org. Retrieved 1 March 2018.

[wasp1and2-11] Collier Cameron, A; Bouchy, F; Hébrard, G; Maxted, P; Pollacco, D; Pont, F; Skillen, I; Smalley, B; Street, R. A; West, R. G; Wilson, D. M; Aigrain, S; Christian, D. J; Clarkson, W. I; Enoch, B; Evans, A; Fitzsimmons, A; Fleenor, M; Gillon, M; Haswell, C. A; Hebb, L; Hellier, C; Hodgkin, S. T; Horne, K; Irwin, J; Kane, S. R; Keenan, F. P; Loeillet, B; Lister, T. A; et al. (2007). "WASP-1b and WASP-2b: Two new transiting exoplanets detected with SuperWASP and SOPHIE". Monthly Notices of the Royal Astronomical Society. 375 (3): 951–957. arXiv:astro-ph/0609688. Bibcode:2007MNRAS.375..951C. doi:10.1111/j.1365-2966.2006.11350.x. S2CID 735515.{{cite journal}}: CS1 maint: unflagged free DOI (link)

[12] Lendl, M; Triaud, A. H. M. J; Anderson, D. R; Collier Cameron, A; Delrez, L; Doyle, A. P; Gillon, M; Hellier, C; Jehin, E; Maxted, P. F. L; Neveu-Vanmalle, M; Pepe, F; Pollacco, D; Queloz, D; Ségransan, D; Smalley, B; Smith, A. M. S; Udry, S; Van Grootel, V; West, R. G (2014). "WASP-117b: A 10-day-period Saturn in an eccentric and misaligned orbit". Astronomy and Astrophysics. 568: A81. arXiv:1406.6942. Bibcode:2014A&A...568A..81L. doi:10.1051/0004-6361/201424481. S2CID 54605901.

[13] Lam, K. W. F; Faedi, F; Brown, D. J. A; Anderson, D. R; Delrez, L; Gillon, M; Hébrard, G; Lendl, M; Mancini, L; Southworth, J; Smalley, B; Triaud, A. H. M; Turner, O. D; Hay, K. L; Armstrong, D. J; Barros, S. C. C; Bonomo, A. S; Bouchy, F; Boumis, P; Collier Cameron, A; Doyle, A. P; Hellier, C; Henning, T; Jehin, E; King, G; Kirk, J; Louden, T; Maxted, P. F. L; McCormac, J. J; et al. (2017). "From dense hot Jupiter to low-density Neptune: The discovery of WASP-127b, WASP-136b, and WASP-138b". Astronomy and Astrophysics. 599 (3): A3. arXiv:1607.07859. Bibcode:2017A&A...599A...3L. doi:10.1051/0004-6361/201629403. S2CID 5953163.

[14] "Impact of stellar companions on precise radial velocities". Astronomy and Astrophysics. 550: A75. 2013. arXiv:1212.2848. Bibcode:2013A&A...550A..75C. doi:10.1051/0004-6361/201220083. S2CID 53955379. {{cite journal}}: Unknown parameter |authors= ignored (help)

[Mamajek12-15] Mamajek, Eric E.; Quillen, Alice C.; Pecaut, Mark J.; Moolekamp, Fred; Scott, Erin L.; Kenworthy, Matthew A.; Collier Cameron, Andrew; Parley, Neil R. (March 2012). "Planetary Construction Zones in Occultation: Discovery of an Extrasolar Ring System Transiting a Young Sun-like Star and Future Prospects for Detecting Eclipses by Circumsecondary and Circumplanetary Disks". The Astronomical Journal. 143 (3): 72. arXiv:1108.4070. Bibcode:2012AJ....143...72M. doi:10.1088/0004-6256/143/3/72. S2CID 55818711.

[ctio-16] "Eclipsing Ring System J1407". Cerro Tololo Inter-American Observatory. 22 June 2012. Retrieved 27 January 2015.

[NYT-20161013-17] St. Fleur, Nicholas (13 October 2016). "Distant Ringed Object Could Be 'Saturn on Steroids'". New York Times.

[18] O'Neill, Ian (12 January 2012). "'Saturn on Steroids' Exoplanet Discovered?". Discovery News.

[19] Gigantic ring system around J1407b much larger, heavier than Saturn's, on University of Rochester website.

[Kenworthy-20] Kenworthy, Matthew A.; Mamajek, Eric E. (22 January 2015). "Modeling giant extrasolar ring systems in eclipse and the case of J1407b: sculpting by exomoons?". The Astrophysical Journal. 800 (2): 126. arXiv:1501.05652. Bibcode:2015ApJ...800..126K. doi:10.1088/0004-637X/800/2/126. S2CID 56118870.

[rochester-21] "Gigantic ring system around J1407b much larger, heavier than Saturn's". University of Rochester. 26 January 2015.

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