Astronomy:2937 Gibbs
| Discovery [1] | |
|---|---|
| Discovered by | E. Bowell |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 14 June 1980 |
| Designations | |
| (2937) Gibbs | |
| Named after | Josiah Willard Gibbs [2] (American scientist) |
| 1980 LA | |
| Minor planet category | Mars-crosser [1][3] · Phocaea [4][5] |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 36.75 yr (13,424 days) |
| |{{{apsis}}}|helion}} | 3.0232 AU |
| |{{{apsis}}}|helion}} | 1.6160 AU |
| 2.3196 AU | |
| Eccentricity | 0.3033 |
| Orbital period | 3.53 yr (1,290 days) |
| Mean anomaly | 161.70° |
| Mean motion | 0° 16m 44.4s / day |
| Inclination | 21.758° |
| Longitude of ascending node | 265.72° |
| 71.849° | |
| Physical characteristics | |
| Dimensions | 5.04±1.43 km[6] 5.99±1.20 km[7] 6.35 km (calculated)[4] |
| Rotation period | 3.06±0.05 h[8] 3.06153±0.00006 h[8] 3.189±0.003 h[9][lower-alpha 1] |
| Geometric albedo | 0.23 (assumed)[4] 0.283±0.113[7] 0.30±0.13[6] |
| S [4] | |
| Absolute magnitude (H) | 13.10[7] · 13.2[1][4] · 13.42[6] |
2937 Gibbs, provisional designation 1980 LA, is a stony Phocaea asteroid and Mars-crosser from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 14 June 1980, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona.[3] The asteroid was named after American scientist Josiah Willard Gibbs.[2]
Orbit and classification
Gibbs is a Mars-crossing asteroid, as it crosses the orbit of Mars at 1.666 AU.[1][3] It is also an eccentric member of the Phocaea family,[4][5] a large asteroid family of stony asteroids in the inner main-belt.[10]:23 Gibbs orbits the Sun at a distance of 1.6–3.0 AU once every 3 years and 6 months (1,290 days). Its orbit has an eccentricity of 0.30 and an inclination of 22° with respect to the ecliptic.[1]
The asteroid's observation arc begins with its official discovery observation at Anderson Mesa. No prior identifications were made and no precoveries taken.[3]
Physical characteristics
Gibbs is an assumed stony S-type asteroid, which agrees with the overall spectral type of the Phocaea family.[10]:23
Rotation period
In 2005, two rotational lightcurves of Gibbs were obtained from photometric observations by Italian amateur astronomers Federico Manzini and Roberto Crippa. Lightcurve analysis gave a rotation period of 3.06 and 3.06153 hours with a brightness variation of 0.31 and 0.39 magnitude, respectively ({{{1}}}).[8] In December 2016, Robert Stephens obtained a well-defined lightcurve at his Trojan Station (U81) that gave a period of 3.189 hours and an amplitude of 0.26 magnitude ({{{1}}}).[9][lower-alpha 1]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Gibbs measures between 5.04 and 5.99 kilometers in diameter and its surface has an albedo between 0.283 and 0.30,[6][7] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23 – derived from 25 Phocaea, the Phocaea family's largest member and namesake – and calculates a diameter of 6.35 kilometers based on an absolute magnitude of 13.2.[4]
Naming
This minor planet was named in memory of American mathematician and physicist Josiah Willard Gibbs (1839–1903), who contributed to the studies of asteroids through his work on orbits.[2] The official naming citation was published by the Minor Planet Center on 17 February 1984 (M.P.C. 8544).[11] The lunar crater Gibbs was also named in his honor.[2]
Notes
- ↑ 1.0 1.1 Lightcurve plot for (2937) Gibbs. Robert D. Stephens (2016). Rotation period of 3.189±0.003 hours with a brightness amplitude of 0.26 mag. Quality Code of 3. Summary figures at the CS3 website and at the LCDB
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "JPL Small-Body Database Browser: 2937 Gibbs (1980 LA)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002937. Retrieved 15 September 2017.
- ↑ 2.0 2.1 2.2 2.3 Schmadel, Lutz D. (2007). "(2937) Gibbs". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. pp. 241–242. doi:10.1007/978-3-540-29925-7_2938. ISBN 978-3-540-00238-3.
- ↑ 3.0 3.1 3.2 3.3 "2937 Gibbs (1980 LA)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=2937. Retrieved 15 September 2017.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 "LCDB Data for (2937) Gibbs". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=2937%7CGibbs. Retrieved 15 September 2017.
- ↑ 5.0 5.1 "Asteroid 2937 Gibbs – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=2937+Gibbs#Asteroid%202937%20GibbsEAR-A-VARGBDET-5-NESVORNYFAM-V3.0. Retrieved 26 October 2019.
- ↑ 6.0 6.1 6.2 6.3 Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T. et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal 152 (3): 12. doi:10.3847/0004-6256/152/3/63. Bibcode: 2016AJ....152...63N.
- ↑ 7.0 7.1 7.2 7.3 Alí-Lagoa, V.; Delbo', M. (July 2017). "Sizes and albedos of Mars-crossing asteroids from WISE/NEOWISE data". Astronomy and Astrophysics 603: 8. doi:10.1051/0004-6361/201629917. Bibcode: 2017A&A...603A..55A.
- ↑ 8.0 8.1 8.2 Behrend, Raoul. "Asteroids and comets rotation curves – (2937) Gibbs". Geneva Observatory. http://obswww.unige.ch/~behrend/page4cou.html#002937. Retrieved 15 September 2017.
- ↑ 9.0 9.1 Stephens, Robert D. (April 2017). "Asteroids Observed from CS3: 2016 October - December". The Minor Planet Bulletin 44 (2): 120–122. ISSN 1052-8091. Bibcode: 2017MPBu...44..120S. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2017MPBu...44..120S. Retrieved 15 September 2017.
- ↑ 10.0 10.1 Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131. Bibcode: 2015aste.book..297N.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html. Retrieved 15 September 2017.
External links
- Asteroid Lightcurve Database (LCDB), query form (info )
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 2937 Gibbs at AstDyS-2, Asteroids—Dynamic Site
- 2937 Gibbs at the JPL Small-Body Database
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