1660 Wood

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 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 84.41 yr (30,830 days)
Aphelion 3.1172 AU
Perihelion 1.6724 AU
2.3948 AU
Eccentricity 0.3016
3.71 yr (1,354 days)
329.85°
Inclination 20.571°
212.95°
276.71°
Physical characteristics
Dimensions 11.342±0.113 km[4]
12.67 km (calculated)[3]
6.8090 h[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. 1 2 "JPL Small-Body Database Browser: 1660 Wood (1953 GA)" (2015-10-16 last obs.). Jet Propulsion Laboratory. Retrieved November 2015.
    2. 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.
    3. 1 2 3 4 "LCDB Data for (1660) Wood". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 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.
    5. 1 2 Oey, Julian; Alvarez, Eduardo Manuel (July 2012). "Period Determination for 1660 Wood". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 39 (3): 147–148. Bibcode:2012MPBu...39..147O. ISSN 1052-8091. Retrieved November 2015.
    6. 1 2 Hills, Kevin (October 2012). "Asteroid Lightcurve Analysis at Riverland Dingo Observatory: 1394 Algoa, 1660 Wood, 8882 Sakaetamura, and (15269) 1990 XF". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 39 (4): 239–240. Bibcode:2012MPBu...39..239H. ISSN 1052-8091. Retrieved November 2015.
    7. 1 2 Han, Xianming L.; Li, Bin; Haibin, Zhao (January 2013). "Rotation Periods of 1660 Wood, 7173 Sepkoski, 12738 Satoshimiki and (23233) 2000 WM72". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 40 (1): 14–15. Bibcode:2013MPBu...40...14H. ISSN 1052-8091. Retrieved November 2015.
    8. ↑ "1660 Wood (1953 GA)". Minor Planet Center. Retrieved November 2015.
    9. ↑ 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


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