1958 Chandra
| Discovery [1] | |
|---|---|
| Discovered by | C. U. Cesco |
| Discovery site |
El Leoncito (Yale–Columbia Station) |
| Discovery date | 24 September 1970 |
| Designations | |
| MPC designation | 1958 Chandra |
Named after |
Subrahmanyan Chandrasekhar (astrophysicist)[2] |
|
1970 SB · 1947 HD 1959 RG1 · 1965 UN 1971 XA | |
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 61.45 yr (22446 days) |
| Aphelion | 3.6219 AU (541.83 Gm) |
| Perihelion | 2.5822 AU (386.29 Gm) |
| 3.1021 AU (464.07 Gm) | |
| Eccentricity | 0.16758 |
| 5.46 yr (1995.6 d) | |
| 125.23° | |
| 0° 10m 49.44s / day | |
| Inclination | 10.561° |
| 345.04° | |
| 319.13° | |
| Earth MOID | 1.5767 AU (235.87 Gm) |
| Jupiter MOID | 1.72519 AU (258.085 Gm) |
| Jupiter Tisserand parameter | 3.174 |
| Physical characteristics | |
| Dimensions |
34.02±2.5 km (IRAS:3) 33.82 km (derived)[3] |
Mean radius | 17.01 ± 1.25 km |
|
7.070±0.004 h[4] 7.0571±0.0029 h[5] 7.070 h (0.2946 d)[1] | |
|
0.0801 ± 0.013(IRAS:3)[1] 0.0511 (derived)[3] | |
| C [3] | |
| 11.2[1] | |
|
| |
1958 Chandra, provisionally designated 1970 SB, is a carbonaceous asteroid from the outer region of the asteroid belt, about 34 kilometers in diameter. It was discovered by Argentinian astronomer Carlos Cesco at the Yale–Columbia Southern Station of the Leoncito Astronomical Complex, San Juan, Argentina (also see Félix Aguilar Observatory).[6]
The dark C-type asteroid orbits the Sun at a distance of 2.6–3.6 AU once every 5 years and 6 months (1,996 days). Its orbit is tilted by 11 degrees to the plane of the ecliptic and shows an eccentricity of 0.17. Two concurring light-curve analysis rendered a rotation period of 7.1 hours in 2010 and 2014, respectively.[4][5] According to the survey carried out by the Infrared Astronomical Satellite, IRAS, the body's surface has an albedo of 0.080, while the Collaborative Asteroid Lightcurve Link derives an lower albedo of 0.05, which is typical value for carbonaceous asteroids.[3]
The asteroid was named in honor of Subrahmanyan Chandrasekhar (1910–1995), the Nobel Prize winning Indian–American theoretical astrophysicist (also see Chandrasekhar limit).[2][7]
References
- 1 2 3 4 5 "JPL Small-Body Database Browser: 1958 Chandra (1970 SB)" (2015-11-10 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1958) Chandra. Springer Berlin Heidelberg. p. 157. ISBN 978-3-540-29925-7. Retrieved October 2015.
- 1 2 3 4 5 "LCDB Data for (1958) Chandra". Asteroid Lightcurve Database (LCDB). Retrieved December 2015.
- 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1958) Chandra". Geneva Observatory. Retrieved December 2015.
- 1 2 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved December 2015.
- ↑ "1958 Chandra (1970 SB)". Minor Planet Center. Retrieved December 2015.
- ↑ "New Names of Minor Planets" (PDF), Minor Planet Circular (Cambridge, Mass: Minor Planet Center) (MPC 5013), 1 Nov 1979, ISSN 0736-6884
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
- 1958 Chandra at the JPL Small-Body Database
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