1660 Wood
| Discovery [1] | |
|---|---|
| Discovered by | J. A. Bruwer |
| Discovery site | Johannesburg Obs. |
| Discovery date | 7 April 1953 |
| Designations | |
| MPC designation | 1660 Wood |
Named after |
Harry Edwin Wood (astronomer)[2] |
|
1953 GA · 1931 KL 1933 YC · 1951 RD1 1955 VQ | |
| main-belt · Phocaea [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.83 yr (30984 days) |
| Aphelion | 3.1184 AU (466.51 Gm) |
| Perihelion | 1.6724 AU (250.19 Gm) |
| 2.3954 AU (358.35 Gm) | |
| Eccentricity | 0.30182 |
| 3.71 yr (1354.2 d) | |
| 23.042° | |
| 0° 15m 57.06s / day | |
| Inclination | 20.572° |
| 212.94° | |
| 276.72° | |
| Earth MOID | 0.818259 AU (122.4098 Gm) |
| Jupiter MOID | 2.354 AU (352.2 Gm) |
| Jupiter Tisserand parameter | 3.383 |
| Physical characteristics | |
| Dimensions |
11.342±0.113 km[4] 12.67 km (calculated)[3] |
|
6.8090 h (0.28371 d)[1][5] 6.8088±0.0004 h[6] 6.8088±0.0002 h[7] | |
|
0.2386±0.0352[4] 0.23 (assumed)[3] | |
|
SMASS = S S [3] | |
| 11.7 | |
|
| |
1660 Wood, provisional designation 1953 GA, is a stony asteroid from the inner regions of the asteroid belt, about 12 kilometers in diameter. It was discovered on 7 April 1953 by South African astronomer Jacobus Albertus Bruwer at Union Observatory in Johannesburg.[8]
The S-type asteroid is a member of the Phocaea family. It orbits the Sun at a distance of 1.7–3.1 AU once every 3.71 years (1,354 days). Its orbit shows an eccentricity of 0.30 and is tilted by 21 degrees to the plane of the ecliptic. It has an albedo of 0.23, as measured by the WISE/NEOWISE mission.[4] Photometric observations precisely determined that the body takes 6.81 hours to rotate once around its axis.[5][6][7]
The asteroid was named after British–South African astronomer Harry Edwin Wood (1881–1946), who was the second director of the Union Observatory at which the asteroid was discovered, and who had discovered 12 asteroids himself between 1911 and 1928. He had the prime responsibility for the famous Franklin-Adams Star Camera (Franklin-Adams photographic refractor) since its acquisition in 1909 (also see 1925 Franklin-Adams).[2]
1660 Wood was the second numbered discovery of astronomer Jacobus Bruwer. In addition, he also discovered the minor planets 1658 Innes, 1794 Finsen, and 3284 Niebuhr. The asteroid 1811 Bruwer was named in his honour by the Dutch, Dutch-American astronomer trio of the Palomar–Leiden survey.[9]
References
- 1 2 3 "JPL Small-Body Database Browser: 1660 Wood (1953 GA)" (2015-10-16 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1660) Wood. Springer Berlin Heidelberg. p. 132. ISBN 978-3-540-29925-7. Retrieved November 2015.
- 1 2 3 4 "LCDB Data for (1660) Wood". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
- 1 2 3 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. Retrieved November 2015.
- 1 2 Oey, Julian; Alvarez, Eduardo Manuel (July 2012). "Period Determination for 1660 Wood". The Minor Planet Bulletin 39 (3): 147–148. Bibcode:2012MPBu...39..147O. ISSN 1052-8091. Retrieved November 2015.
- 1 2 Hills, Kevin (October 2012). "Asteroid Lightcurve Analysis at Riverland Dingo Observatory: 1394 Algoa, 1660 Wood, 8882 Sakaetamura, and (15269) 1990 XF". The Minor Planet Bulletin 39 (4): 239–240. Bibcode:2012MPBu...39..239H. ISSN 1052-8091. Retrieved November 2015.
- 1 2 Han, Xianming L.; Li, Bin; Haibin, Zhao (January 2013). "Rotation Periods of 1660 Wood, 7173 Sepkoski, 12738 Satoshimiki and (23233) 2000 WM72". The Minor Planet Bulletin 40 (1): 14–15. Bibcode:2013MPBu...40...14H. ISSN 1052-8091. Retrieved November 2015.
- ↑ "1660 Wood (1953 GA)". Minor Planet Center. Retrieved November 2015.
- ↑ Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1811) Bruwer. Springer Berlin Heidelberg. p. 145. ISBN 978-3-540-29925-7. Retrieved November 2015.
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
- 1660 Wood at the JPL Small-Body Database
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