1747 Wright
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A three-dimensional model of 1747 Wright based on its light-curve
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Discovery [1] | |
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Discovered by | C. A. Wirtanen |
Discovery site | Lick Observatory |
Discovery date | 14 July 1947 |
Designations | |
MPC designation | 1747 Wright |
Named after
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William Wright (observatory's director)[2] |
1947 NH | |
Mars crosser [3] | |
Orbital characteristics [1] | |
Epoch 27 June 2015 (JD 2457200.5) | |
Uncertainty parameter 0 | |
Observation arc | 68.17 yr (24,900 days) |
Aphelion | 1.8977 AU |
Perihelion | 1.5202 AU |
1.7089 AU | |
Eccentricity | 0.1104 |
2.23 yr (816 days) | |
181.76° | |
Inclination | 21.417° |
268.40° | |
340.39° | |
Earth MOID | 0.5109 AU |
Physical characteristics | |
Dimensions | 6.35 km[4] 5.17±0.24 km[5] |
5.2896 h[6][7] 5.28796±0.00005 h[8] 5.290±0.001 h[9] |
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0.2005[4] 0.321±0.034[5] |
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AU: (Tholen) Sl (SMASS) S [3] |
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13.35 | |
1747 Wright, provisional designation 1947 NH, is a stony asteroid and a sizable Mars-crosser from the innermost regions of the asteroid belt, about 6 kilometers in diameter. It was discovered on July 14, 1947, by American astronomer Carl Wirtanen at Lick Observatory on Mount Hamilton near San Jose, California.[10]
The S-type asteroid is classified as an AU and Sl-type in the respective Tholen and SMASS classification scheme. It the orbits the Sun at a distance of 1.5–1.9 AU once every 2 years and 3 months (816 days). Its orbit shows an eccentricity of 0.11 and is notably tilted by 21 degrees to the plane of the ecliptic. It has a well-define rotation period of 5.29 hours.[6][7][8][9] According to the surveys carried out by the Infrared Astronomical Satellite, IRAS, and the Japanese Akari satellite, it has a geometric albedo of 0.20 and 0.32, respectively.[4][5]
The minor planet was named in memory of American astronomer William Hammond Wright (1871–1959), staff member and later director of the Lick Observatory until 1942. He was a pioneer in astrophysics with his last project being the design and construction of the 20-inch Carnegie double astrograph for the proper motion program he initiated. As a by-product several discoveries of asteroids and comets were made. He is also honored by the Martian and lunar craters Wright.[2]
References
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- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
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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
- 1747 Wright at the JPL Small-Body Database
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