1136 Mercedes
| Discovery[1] | |
|---|---|
| Discovered by | J. Comas Solà |
| Discovery site | Fabra Obs. |
| Discovery date | 30 October 1929 |
| Designations | |
| (1136) Mercedes | |
Named after | Mercedes[2] (discoverer's sister-in-law) |
| 1929 UA · 1966 XB | |
| main-belt · (middle) background[3] | |
| 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)[4] 25.296±0.249 km[5] 26.29±6.21 km[6] 26.349±0.078 km[7] 26.66±0.28 km[8] 33.19±6.54 km[9] |
| 6.448±0.002 h[10] 15.6 h (poor)[11] 24.64±0.01 h[12] | |
| 0.05±0.04[9] 0.08±0.06[6] 0.084±0.015[5] 0.1007 (derived)[4] 0.1018±0.0230[7] 0.103±0.003[8] | |
| S (assumed)[4] | |
| 11.00[7][8] · 11.10[4][6] · 11.2[1] · 11.22[9] · 11.68±0.75[13] | |
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.[14] The asteroid was named for the sister-in-law of the discoverer.[2]
Orbit and classification
[edit]Mercedes is not a member of any known asteroid family and belongs to the belt's background population.[3] 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.[14]
Physical characteristics
[edit]Mercedes is an assumed S-type asteroid.[4]
Rotation period
[edit]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),[10] while another lightcurve from 2007, gave a much longer period of 24.64 hours with an amplitude of 0.15 (U=2).[12] A third period of 15.6 hours is considered of poor quality (U=1).[11]
Diameter and albedo
[edit]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.[5][6][7][8][9]
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.[4]
Naming
[edit]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
[edit]- ^ a b c d "JPL Small-Body Database Browser: 1136 Mercedes (1929 UA)" (2017-06-03 last obs.). Jet Propulsion Laboratory. Retrieved 9 September 2017.
- ^ a b c 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.
- ^ a b "Asteroid 1136 Mercedes – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 28 October 2019.
- ^ a b c d e f "LCDB Data for (1136) Mercedes". Asteroid Lightcurve Database (LCDB). Retrieved 9 September 2017.
- ^ a b c 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. S2CID 119293330. Retrieved 9 September 2017.
- ^ a b c d 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. S2CID 9341381. Retrieved 9 September 2017.
- ^ a b c d 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. S2CID 35447010.
- ^ a b c d 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. (online, AcuA catalog p. 153)
- ^ a b c d 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.
- ^ a b 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.
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1136) Mercedes". Geneva Observatory. Retrieved 9 September 2017.
- ^ a b 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. S2CID 53493339. Retrieved 9 September 2017.
- ^ a b "1136 Mercedes (1929 UA)". Minor Planet Center. Retrieved 9 September 2017.
External links
[edit]- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- 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 AstDyS-2, Asteroids—Dynamic Site
- 1136 Mercedes at the JPL Small-Body Database
