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{{Infobox planet
#REDIRECT [[List of minor planets: 2001–3000]]
| minorplanet = yes
{{R to list entry}}
| name = 2927 Alamosa
| background = #FFFFC0
| image =
| caption =
| discovery_ref = &thinsp;<ref name="jpldata" />
| discovered = 5 October 1981
| discoverer = [[Norman G. Thomas|N. G. Thomas]]
| discovery_site = [[Anderson Mesa Station]]
| mp_name = 2927 Alamosa
| alt_names = 1981 TM{{·}}1936 OA<br />{{mp|1975 EN|2}}
| named_after = [[Alamosa, Colorado]]<br />{{small|(discoverer’s birthplace)}}<ref name="springer" />
| mp_category = [[main-belt]]{{·}}{{small|(inner)}}&thinsp;<ref name="lcdb" />
| orbit_ref = &thinsp;<ref name="jpldata" />
| epoch = 27 June 2015 ([[Julian day|JD]] 2457200.5)
| uncertainty = 0
| observation_arc = {{nowrap|79.34 yr (28,979 days)}}
| aphelion = 2.9601 [[Astronomical unit|AU]]
| perihelion = 2.1072 AU
| semimajor = 2.5337 AU
| eccentricity = 0.1682
| period = 4.03 [[Julian year (astronomy)|yr]] (1,473 days)
| mean_anomaly = 180.27[[degree (angle)|°]]
| inclination = 17.021°
| asc_node = 150.49°
| arg_peri = 189.35°
| dimensions = 11.83 km {{small|(caculated)}}<ref name="lcdb" />
| rotation = 4.3832 [[hour|h]]<ref name="Odden-2012c" />
| albedo = 0.20 {{small|(assumed)}}<ref name="lcdb" />
| spectral_type = [[S-type asteroid|S]]&thinsp;<ref name="lcdb" />
| abs_magnitude = 12.0<ref name="jpldata" />
}}

'''2927 Alamosa''', provisional designation 1981 TM, is a stony [[asteroid]] from the inner regions of the [[asteroid belt]], about 12 kilometers in diameter. It was discovered on 5 October 1981, by American astronomer [[Norman G. Thomas|Norman Thomas]] at Lowell's [[Anderson Mesa Station]] in Flagstaff, Arizona.<ref name="MPC-Alamosa" />

The [[S-type asteroid|S-type]] asteroid orbits the Sun at a distance of 2.1–3.0&nbsp;[[Astronomical unit|AU]] once every 4.03 years (1,473 days). The body's orbit is [[orbital inclination|tilted]] by 17 degrees to the plane of the [[ecliptic]] and shows an [[orbital eccentricity|eccentricity]] of 0.17. It has a [[rotation period]] of 4.4 hours<ref name="Odden-2012c" /> and an [[astronomical albedo|albedo]] of 0.20, assumed by the Collaborative Asteroid Lightcurve Link (CALL).<ref name="lcdb" />

The minor planet was named for the discoverer's birthplace, [[Alamosa, Colorado]], the central town of the San Luis Valley of southern Colorado, located on the upper Rio Grande River.<ref name="springer" /> Almosa is Spanish for [[Populus sect. Aegiros|cottonwood tree]].

== References ==
{{reflist
|refs=

<ref name="lcdb">{{cite web
|title=LCDB Data for (2927) Alamosa
|publisher=Asteroid Lightcurve Database (LCDB)
|url=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=2927%7CAlamosa
|accessdate=December 2015}}</ref>

<ref name="jpldata">{{cite web
|type=2015-11-18 last obs.
|title=JPL Small-Body Database Browser: 2927 Alamosa (1981 TM)
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002927
|publisher=Jet Propulsion Laboratory
|accessdate=December 2015}}</ref>

<ref name="springer">{{cite book
|url=http://link.springer.com/referenceworkentry/10.1007/978-3-540-29925-7_2928
|title=Dictionary of Minor Planet Names – (2927) Alamosa
|last=Schmadel |first=Lutz D.
|publisher=Springer Berlin Heidelberg
|page=241
|date=2003
|isbn=978-3-540-29925-7
|accessdate=December 2015}}</ref>

<ref name="MPC-Alamosa">{{cite web
|title=2927 Alamosa (1981 TM)
|work=Minor Planet Center
|url=http://www.minorplanetcenter.net/db_search/show_object?object_id=2927
|accessdate=December 2015}}</ref>

<ref name="Odden-2012c">{{cite journal
|authors = Odden, Caroline; French, John; Briggs, John
|date = October 2012
|title = Lightcurve Analysis for Four Asteroids
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39..236O
|journal = Bulletin of the Minor Planets
|publisher = Section of the Association of Lunar and Planetary Observers
|volume = 39
|issue = 4
|pages = 236–238
|issn = 1052-8091
|bibcode = 2012MPBu...39..236O
|access-date= December 2015}}</ref>

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

== External links ==
* [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info])
* [https://books.google.se/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
* [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
* [http://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
* {{JPL small body|title=2927 Alamosa (1981 TM)|id=2002927}}

{{Minor planets navigator|2926 Caldeira|2928 Epstein}}
{{Small Solar System bodies}}


{{DEFAULTSORT:Alamosa}}
{{DEFAULTSORT:Alamosa}}
[[Category:Main-belt asteroids|002927]]
[[Category:Main-belt asteroids|002927]]
[[Category:Numbered asteroids]]
[[Category:Asteroids named for places]]
[[Category:Asteroids named for places]]
[[Category:Astronomical objects discovered in 1981]]
[[Category:Astronomical objects discovered in 1981|19811005]]


{{Beltasteroid-stub}}

Revision as of 07:22, 27 December 2015

2927 Alamosa
Discovery [1]
Discovered byN. G. Thomas
Discovery siteAnderson Mesa Station
Discovery date5 October 1981
Designations
2927 Alamosa
Named after
Alamosa, Colorado
(discoverer’s birthplace)[2]
1981 TM · 1936 OA
1975 EN2
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc79.34 yr (28,979 days)
Aphelion2.9601 AU
Perihelion2.1072 AU
2.5337 AU
Eccentricity0.1682
4.03 yr (1,473 days)
180.27°
Inclination17.021°
150.49°
189.35°
Physical characteristics
Dimensions11.83 km (caculated)[3]
4.3832 h[4]
0.20 (assumed)[3]
S [3]
12.0[1]

2927 Alamosa, provisional designation 1981 TM, is a stony asteroid from the inner regions of the asteroid belt, about 12 kilometers in diameter. It was discovered on 5 October 1981, by American astronomer Norman Thomas at Lowell's Anderson Mesa Station in Flagstaff, Arizona.[5]

The S-type asteroid orbits the Sun at a distance of 2.1–3.0 AU once every 4.03 years (1,473 days). The body's orbit is tilted by 17 degrees to the plane of the ecliptic and shows an eccentricity of 0.17. It has a rotation period of 4.4 hours[4] and an albedo of 0.20, assumed by the Collaborative Asteroid Lightcurve Link (CALL).[3]

The minor planet was named for the discoverer's birthplace, Alamosa, Colorado, the central town of the San Luis Valley of southern Colorado, located on the upper Rio Grande River.[2] Almosa is Spanish for cottonwood tree.

References

  1. ^ a b c "JPL Small-Body Database Browser: 2927 Alamosa (1981 TM)" (2015-11-18 last obs.). Jet Propulsion Laboratory. Retrieved December 2015. {{cite web}}: Check date values in: |accessdate= (help)
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (2927) Alamosa. Springer Berlin Heidelberg. p. 241. ISBN 978-3-540-29925-7. Retrieved December 2015. {{cite book}}: Check date values in: |accessdate= (help)
  3. ^ a b c d e "LCDB Data for (2927) Alamosa". Asteroid Lightcurve Database (LCDB). Retrieved December 2015. {{cite web}}: Check date values in: |accessdate= (help)
  4. ^ a b "Lightcurve Analysis for Four Asteroids". Bulletin of the Minor Planets. 39 (4). Section of the Association of Lunar and Planetary Observers: 236–238. October 2012. Bibcode:2012MPBu...39..236O. ISSN 1052-8091. Retrieved December 2015. {{cite journal}}: Check date values in: |access-date= (help); Cite uses deprecated parameter |authors= (help)
  5. ^ "2927 Alamosa (1981 TM)". Minor Planet Center. Retrieved December 2015. {{cite web}}: Check date values in: |accessdate= (help)

External links


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