1136 Mercedes
Discovery [1] | |
---|---|
Discovered by | J. Comas Solà |
Discovery site | Fabra Obs. |
Discovery date | 30 October 1929 |
Designations | |
MPC designation | (1136) Mercedes |
Named after |
Mercedes [2] (discoverer's sister-in-law) |
1929 UA · 1966 XB | |
main-belt · (middle) | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 86.23 yr (31,497 days) |
Aphelion | 3.2207 AU |
Perihelion | 1.9111 AU |
2.5659 AU | |
Eccentricity | 0.2552 |
4.11 yr (1,501 days) | |
171.68° | |
0° 14m 23.28s / day | |
Inclination | 8.9825° |
209.53° | |
148.49° | |
Physical characteristics | |
Dimensions |
25.23 km (derived)[3] ±0.249 km 25.296[4] ±6.21 km 26.29[5] ±0.078 km 26.349[6] ±0.28 km 26.66[7] ±6.54 km 33.19[8] |
±0.002 6.448h[9] h 15.6(poor)[10] ±0.01 h 24.64[11] | |
±0.04 0.05[8] ±0.06 0.08[5] ±0.015 0.084[4] 0.1007 (derived)[3] ±0.0230 0.1018[6] ±0.003 0.103[7] | |
S (assumed)[3] | |
11.00[6][7] · 11.10[3][5] · 11.2[1] · 11.22[8] · ±0.75 11.68[12] | |
|
1136 Mercedes, provisional designation 1929 UA, is a background asteroid from the central regions of the asteroid belt, approximately 26 kilometers in diameter. It was discovered on 30 October 1929, by Catalan astronomer Josep Comas i Solà at the Fabra Observatory in Barcelona, Spain.[13] The asteroid was named for the sister-in-law of the discoverer.[2]
Orbit and classification
Mercedes is not a member of any known asteroid family and belongs to the belt's background population.[14] It orbits the Sun in the central main-belt at a distance of 1.9–3.2 AU once every 4 years and 1 month (1,501 days). Its orbit has an eccentricity of 0.26 and an inclination of 9° with respect to the ecliptic.[1] The body's observation arc begins at Yerkes Observatory in March 1931, more than a year after its official discovery observation at Fabra.[13]
Physical characteristics
Mercedes is an assumed S-type asteroid.[3]
Rotation period
The asteroid has an ambiguous rotation period. A lightcurve of Mercedes obtained in 1998, gave a period of 6.448 hours and a brightness variation of 0.10 magnitude (U=2),[9] while another lightcurve from 2007, gave a much longer period of 24.64 hours with an amplitude of 0.15 (U=2).[11] A third period of 15.6 hours is considered of poor quality (U=1).[10]
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Mercedes measures between 25.296 and 33.19 kilometers in diameter and its surface has an albedo between 0.05 and 0.103.[4][5][6][7][8]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1007 and a diameter of 25.23 kilometers based on an absolute magnitude of 11.1.[3]
Naming
This minor planet was named by Josep Comas i Solà for his sister-in-law, Mercedes. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 106).[2]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 1136 Mercedes (1929 UA)" (2017-06-03 last obs.). Jet Propulsion Laboratory. Retrieved 9 September 2017.
- 1 2 3 Schmadel, Lutz D. (2007). "(1136) Mercedes". Dictionary of Minor Planet Names – (1136) Mercedes. Springer Berlin Heidelberg. p. 96. doi:10.1007/978-3-540-29925-7_1137. ISBN 978-3-540-00238-3.
- 1 2 3 4 5 6 "LCDB Data for (1136) Mercedes". Asteroid Lightcurve Database (LCDB). Retrieved 9 September 2017.
- 1 2 3 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 9 September 2017.
- 1 2 3 4 Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. Retrieved 9 September 2017.
- 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
- 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 9 September 2017.
- 1 2 3 4 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. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63. Retrieved 9 September 2017.
- 1 2 Gil-Hutton, R.; Cañ; ada, M. (April 2003). "Photometry of Fourteen Main Belt Asteroids". Revista Mexicana de Astronomía y Astrofísica. 39: 69–76. Bibcode:2003RMxAA..39...69G. Retrieved 9 September 2017.
- 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1136) Mercedes". Geneva Observatory. Retrieved 9 September 2017.
- 1 2 Brinsfield, James W. (September 2008). "Asteroid Lightcurve Analysis at the Via Capote Observatory: First Quarter 2008". The Minor Planet Bulletin. 35 (3): 119–122. Bibcode:2008MPBu...35..119B. ISSN 1052-8091. Retrieved 9 September 2017.
- ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 9 September 2017.
- 1 2 "1136 Mercedes (1929 UA)". Minor Planet Center. Retrieved 9 September 2017.
- ↑ "Small Bodies Data Ferret". Nesvorny HCM Asteroid Families V3.0. Retrieved 8 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
- 1136 Mercedes at the JPL Small-Body Database