1334 Lundmarka: Difference between revisions

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{{Infobox planet
#REDIRECT [[List of minor planets/1001–2000]]
| minorplanet = yes
{{R to list entry}}
| name = 1334 Lundmarka
| background = #FFFFC0
| image =
| caption =
| discovery_ref = &thinsp;<ref name="jpldata" />
| discovered = 16 July 1934
| discoverer = [[Karl Reinmuth|K. Reinmuth]]
| discovery_site = [[Heidelberg-Königstuhl State Observatory|Heidelberg Obs.]]
| mp_name = 1334 Lundmarka
| alt_names = 1934 OB
| named_after = [[Knut Lundmark]]<ref name="springer" />
| mp_category = [[main-belt]]
| orbit_ref = &thinsp;<ref name="jpldata" />
| epoch = 27 June 2015 ([[Julian day|JD]] 2457200.5)
| uncertainty = 0
| observation_arc = {{nowrap|81.13 yr (29,632 days)}}
| aphelion = 3.1897 [[Astronomical unit|AU]]
| perihelion = 2.6373 AU
| semimajor = 2.9135 AU
| eccentricity = 0.0948
| period = 4.97 [[Julian year (astronomy)|yr]] (1,816 days)
| mean_anomaly = 127.06[[degree (angle)|°]]
| inclination = 11.455°
| asc_node = 133.23°
| arg_peri = 130.11°
| dimensions = 29.8 km<ref name="jpldata" /><br />30.4 km<ref name="LCDB" />
| rotation = 6.250 [[hour|h]]
| albedo = 0.0600&thinsp;<ref name="jpldata" /><br />0.1455&thinsp;<ref name="LCDB" />
| spectral_type = [[C-type asteroid|C]]&thinsp;<ref name="LCDB" />
| abs_magnitude = 10.3
}}

'''1334 Lundmarka''', provisional designation 1934 OB, is a carbonaceous [[asteroid]] from the [[asteroid belt]] about 30 kilometers in diameter. It was discovered on July 16, 1934 by astronomer [[Karl Reinmuth]] at [[Landessternwarte Heidelberg-Königstuhl|Heidelberg Observatory]] in Germany.<ref name="MPC-Lundmarka" />

The assumed [[C-type asteroid|C-type]] asteroid orbits the Sun at a distance of 2.6–3.2 [[Astronomical unit|AU]] once every 5 years (1,816 days). It has a rotation period of 6¼ hours and a derived [[geometric albedo]] of 0.15 rather than one of 0.06, as measured by [[IRAS]], the Infrared Astronomical Satellite, back in the 1980s.<ref name="jpldata" /><ref name="LCDB" />

In September 2014, photometric [[light-curve]] observations of nine asteroids, including 1334 Lundmarka, at the
Oakley Southern Sky Observatory in [[Coonabarabran]], Australia, measured the asteroid's [[rotation period]] to be {{val|6.250|0.003}} hours with an amplitude of 0.70 in magnitude.<ref name="Bohn-2015" />

The asteroid is named after Swedish astronomer [[Knut Emil Lundmark]] (1889–1958), who was the head of the [[Lund Observatory]]. He extensively studied globular clusters and galaxies, and pioneered in [[Cosmic distance ladder|measuring galactic distances]] and absolute stellar magnitudes. Lundmark also appeared in national radio with programs on popular astronomy and the history of science. The lunar crater ''[[Lundmark (crater)|Lundmark]]'' is also named in his honour.<ref name="springer" />

== References ==
{{reflist
|refs=

<ref name="Bohn-2015">{{cite journal
|authors = Bohn, Lucas; Hibbler, Brianna; Stein, Gregory; Ditteon, Richard
|date = April 2015
|title = Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory: 2014 September
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42...89B
|journal = Bulletin of the Minor Planets
|publisher = Section of the Association of Lunar and Planetary Observers
|volume = 42
|issue = 2
|pages = 89–90
|issn = 1052-8091
|bibcode = 2015MPBu...42...89B
|access-date= October 2015}}</ref>

<ref name="LCDB">{{cite web
|title=LCDB Data for (1334) Lundmarka
|publisher=Asteroid Lightcurve Database (LCDB)
|url=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1334%7CLundmarka
|accessdate=October 2015}}</ref>

<ref name="jpldata">{{cite web
|type=2015-09-01 last obs.
|title=JPL Small-Body Database Browser: 1334 Lundmarka (1934 OB)
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001334
|publisher=Jet Propulsion Laboratory
|accessdate=October 2015}}</ref>

<ref name="springer">{{cite book
|url=http://link.springer.com/referenceworkentry/10.1007/978-3-540-29925-7_1335
|title=Dictionary of Minor Planet Names – (1334) Lundmarka
|last=Schmadel |first=Lutz D.
|publisher=Springer Berlin Heidelberg
|page=109
|date=2003
|isbn=978-3-540-29925-7
|accessdate=October 2015}}</ref>

<ref name="MPC-Lundmarka">{{cite web
|title=1334 Lundmarka (1934 OB)
|work=Minor Planet Center
|url=http://www.minorplanetcenter.net/db_search/show_object?object_id=1334
|accessdate=October 2015}}</ref>

}} <!-- end of reflist -->

== External links ==
* [http://www.minorplanet.info/lightcurvedatabase.html Asteroid Lightcurve Database (LCDB)])
* [https://books.google.se/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
* {{JPL small body|title=1334 Lundmarka (1934 OB)|id=2001334}}

{{Minor planets navigator|1333 Cevenola|1335 Demoulina}}
{{Small Solar System bodies}}


{{DEFAULTSORT:Lundmarka}}
{{DEFAULTSORT:Lundmarka}}
[[Category:Main-belt asteroids|001334]]
[[Category:Main-belt asteroids|001334]]
[[Category:Discoveries by Karl Wilhelm Reinmuth]]
[[Category:Numbered asteroids]]
[[Category:Asteroids named for people]]
[[Category:Asteroids named for people]]
[[Category:Astronomical objects discovered in 1934]]
[[Category:Discoveries by Karl Wilhelm Reinmuth]]
[[Category:Astronomical objects discovered in 1934|19340716]]


{{Beltasteroid-stub}}

Revision as of 04:57, 28 October 2015

1334 Lundmarka
Discovery [1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date16 July 1934
Designations
1334 Lundmarka
Named after
Knut Lundmark[2]
1934 OB
main-belt
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc81.13 yr (29,632 days)
Aphelion3.1897 AU
Perihelion2.6373 AU
2.9135 AU
Eccentricity0.0948
4.97 yr (1,816 days)
127.06°
Inclination11.455°
133.23°
130.11°
Physical characteristics
Dimensions29.8 km[1]
30.4 km[3]
6.250 h
0.0600 [1]
0.1455 [3]
C [3]
10.3

1334 Lundmarka, provisional designation 1934 OB, is a carbonaceous asteroid from the asteroid belt about 30 kilometers in diameter. It was discovered on July 16, 1934 by astronomer Karl Reinmuth at Heidelberg Observatory in Germany.[4]

The assumed C-type asteroid orbits the Sun at a distance of 2.6–3.2 AU once every 5 years (1,816 days). It has a rotation period of 6¼ hours and a derived geometric albedo of 0.15 rather than one of 0.06, as measured by IRAS, the Infrared Astronomical Satellite, back in the 1980s.[1][3]

In September 2014, photometric light-curve observations of nine asteroids, including 1334 Lundmarka, at the Oakley Southern Sky Observatory in Coonabarabran, Australia, measured the asteroid's rotation period to be 6.250±0.003 hours with an amplitude of 0.70 in magnitude.[5]

The asteroid is named after Swedish astronomer Knut Emil Lundmark (1889–1958), who was the head of the Lund Observatory. He extensively studied globular clusters and galaxies, and pioneered in measuring galactic distances and absolute stellar magnitudes. Lundmark also appeared in national radio with programs on popular astronomy and the history of science. The lunar crater Lundmark is also named in his honour.[2]

References

  1. ^ a b c d e "JPL Small-Body Database Browser: 1334 Lundmarka (1934 OB)" (2015-09-01 last obs.). Jet Propulsion Laboratory. Retrieved October 2015. {{cite web}}: Check date values in: |accessdate= (help)
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1334) Lundmarka. Springer Berlin Heidelberg. p. 109. ISBN 978-3-540-29925-7. Retrieved October 2015. {{cite book}}: Check date values in: |accessdate= (help)
  3. ^ a b c d "LCDB Data for (1334) Lundmarka". Asteroid Lightcurve Database (LCDB). Retrieved October 2015. {{cite web}}: Check date values in: |accessdate= (help)
  4. ^ "1334 Lundmarka (1934 OB)". Minor Planet Center. Retrieved October 2015. {{cite web}}: Check date values in: |accessdate= (help)
  5. ^ "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory: 2014 September". Bulletin of the Minor Planets. 42 (2). Section of the Association of Lunar and Planetary Observers: 89–90. April 2015. Bibcode:2015MPBu...42...89B. ISSN 1052-8091. Retrieved October 2015. {{cite journal}}: Check date values in: |access-date= (help); Cite uses deprecated parameter |authors= (help)

External links


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