Astronomy:39741 Komm
| Discovery [1] | |
|---|---|
| Discovered by | R. Tucker |
| Discovery site | Goodricke–Pigott Obs. |
| Discovery date | 9 January 1997 |
| Designations | |
| (39741) Komm | |
| Named after | Rudolf Komm (helioseismologist)[2] |
| 1997 AT6 · 1999 LM28 | |
| Minor planet category | Mars crosser [1][3][4] |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 20.15 yr (7,358 days) |
| |{{{apsis}}}|helion}} | 2.9461 AU |
| |{{{apsis}}}|helion}} | 1.4189 AU |
| 2.1825 AU | |
| Eccentricity | 0.3499 |
| Orbital period | 3.22 yr (1,178 days) |
| Mean anomaly | 175.16° |
| Mean motion | 0° 18m 20.52s / day |
| Inclination | 6.3383° |
| Longitude of ascending node | 225.71° |
| 126.19° | |
| Earth MOID | 0.4267 AU |
| Physical characteristics | |
| Dimensions | 2.15 km (calculated)[3] |
| Rotation period | 5.95±0.01 h[5] |
| Geometric albedo | 0.20 (assumed)[3] |
| S [3] | |
| Absolute magnitude (H) | 15.7[1][3] |
39741 Komm (provisional designation 1997 AT6) is a stony asteroid and eccentric Mars-crosser from the innermost regions of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 9 January 1997, by American astronomer Roy Tucker at Goodricke-Pigott Observatory in Tucson, Arizona, United States.[4] The asteroid was named for American helioseismologist Rudolf Komm.[2]
Orbit and classification
Komm orbits the Sun in the inner main-belt at a distance of 1.4–2.9 AU once every 3 years and 3 months (1,178 days). Its orbit has an eccentricity of 0.35 and an inclination of 6° with respect to the ecliptic.[1] As no precoveries were taken, the asteroid's observation arc begins with its official discovery observation.[4]
Physical characteristics
Rotation and shape
In October 2009, the first and so far only rotational lightcurve of Komm was obtained by French amateur astronomer René Roy. It gave a well-defined rotation period of 5.95±0.01 hours with a high brightness variation of 0.83 magnitude, indicative of a non-spheroidal shape ({{{1}}}).[5]
Diameter and albedo
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 2.15 kilometers with an absolute magnitude of 15.7.[3]
Naming
This minor planet was named after Rudolf Walter Komm (born 1957), an American helioseismologist, who contributed in the study of solar activity.[2] The official naming citation was published by the Minor Planet Center on 6 August 2003 (M.P.C. 49283).[6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "JPL Small-Body Database Browser: 39741 Komm (1997 AT6)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2039741.
- ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2006). "(39741) Komm [2.18, 0.35, 6.3]". Dictionary of Minor Planet Names – (39741) Komm, Addendum to Fifth Edition: 2003–2005. Springer Berlin Heidelberg. p. 206. doi:10.1007/978-3-540-34361-5_2433. ISBN 978-3-540-34361-5.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (39741) Komm". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=39741%7CKomm.
- ↑ 4.0 4.1 4.2 "39741 Komm (1997 AT6)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=39741.
- ↑ 5.0 5.1 Behrend, Raoul. "Asteroids and comets rotation curves – (39741) Komm". Geneva Observatory. http://obswww.unige.ch/~behrend/page5cou.html#039741.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.
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
- 39741 Komm at AstDyS-2, Asteroids—Dynamic Site
- 39741 Komm at the JPL Small-Body Database
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