162 Laurentia

162 Laurentia
	A three-dimensional model of 162 Laurentia based on its light curve.
Discovery
Discovered by	Paul Henry and Prosper Henry
Discovery site	Paris
Discovery date	21 April 1876
Designations
MPC designation	(162) Laurentia
Pronunciation	/lɒˈrɛnʃiə/
Named after	Joseph Jean Pierre Laurent
Alternative designations	A876 HB
Minor planet category	main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	113.88 yr (41596 d)
Aphelion	3.5574 AU (532.18 Gm)
Perihelion	2.4779 AU (370.69 Gm)
Semi-major axis	3.0177 AU (451.44 Gm)
Eccentricity	0.17887
Orbital period (sidereal)	5.24 yr (1914.7 d)
Mean anomaly	300.020°
Mean motion	0° 11m 16.872s / day
Inclination	6.0977°
Longitude of ascending node	35.539°
Argument of perihelion	116.277°
Earth MOID	1.49465 AU (223.596 Gm)
Jupiter MOID	1.47116 AU (220.082 Gm)
TJupiter	3.214
Physical characteristics
Dimensions	99.10±2.6 km
Synodic rotation period	11.8686 h (0.49453 d)
Geometric albedo	0.0529±0.003
Spectral type	C
Absolute magnitude (H)	8.83

162 Laurentia is a large and dark main-belt asteroid that was discovered by the French brothers Paul Henry and Prosper Henry on 21 April 1876, and named after Joseph Jean Pierre Laurent, an amateur astronomer who discovered asteroid 51 Nemausa.

An occultation by Laurentia was observed from Clive, Alberta on 21 November 1999.^{[citation needed]}

Photometric observations of this asteroid from multiple observatories during 2007 gave a light curve with a period of 11.8686 ± 0.0004 hours and a brightness variation of 0.40 ± 0.05 in magnitude. This is in agreement with previous studies in 1994 and 2007.^[3]

References

^ Noah Webster (1884) A Practical Dictionary of the English Language
"Laurentian". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
^ ^a ^b Yeomans, Donald K., "162 Laurentia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
^ ^a ^b Oey, Julian; Krajewski, Ric (June 2008), "Lightcurve Analysis of Asteroids from Kingsgrove and Other Collaborating Observatories in the First Half of 2007", The Minor Planet Bulletin, vol. 35, no. 2, pp. 47–48, Bibcode:2008MPBu...35...47O.

External links

162 Laurentia at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
162 Laurentia at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

This article about an S-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.

[1] Noah Webster (1884) A Practical Dictionary of the English Language
"Laurentian". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)

[JPL-2] Yeomans, Donald K., "162 Laurentia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.

[OeyKrajewski2008-3] Oey, Julian; Krajewski, Ric (June 2008), "Lightcurve Analysis of Asteroids from Kingsgrove and Other Collaborating Observatories in the First Half of 2007", The Minor Planet Bulletin, vol. 35, no. 2, pp. 47–48, Bibcode:2008MPBu...35...47O.

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