1916 Boreas
| Discovery [1] | |
|---|---|
| Discovered by | S. Arend |
| Discovery site | Uccle – Belgium |
| Discovery date | 1 September 1953 |
| Designations | |
| MPC designation | 1916 Boreas |
|
Named after
|
Boreas (Greek mythology)[2] |
| 1953 RA | |
| NEO · Amor | |
| Orbital characteristics [1][3] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 62.22 yr (22,727 days) |
| Aphelion | 3.2949 AU |
| Perihelion | 1.2490 AU |
| 2.2719 AU | |
| Eccentricity | 0.4502 |
| 3.42 yr (1,251 days) | |
| 21.777° | |
| Inclination | 12.888° |
| 340.63° | |
| 335.88° | |
| Earth MOID | 0.2507 AU |
| Physical characteristics | |
| Dimensions | 3.5 km[1] 3.07 km (calculated)[4] |
| 3.49 h[5] 3.4746 h[6] 3.4741±0.0003 h[lower-alpha 1] 3.4748±0.0010 h[lower-alpha 1] |
|
| 0.20 (assumed)[4] | |
| B–V = 0.852 U–B = 0.407 S (Tholen), S (SMASS) S [4] |
|
| 14.93[1] | |
1916 Boreas, provisional designation 1953 RA, is an eccentric, stony Amor asteroid discovered on 1 September 1953, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle.[7] The asteroid was observed for 2 months and then with time became a lost asteroid. It was recovered in 1974 by Richard Eugene McCrosky, G. Schwartz and JH Bulger based on a predicted position by Brian G. Marsden.[lower-alpha 2][8]
The near-Earth asteroid measures about 3 to 4 kilometers in diameter. It has an Earth minimum orbit intersection distance of 0.25 AU. It orbits the Sun at a distance of 1.2–3.3 AU once every 3 years and 5 months (1,251 days). Its orbit shows a high eccentricity of 0.45 and a orbital inclination of 13 degrees towards the plane of the ecliptic. It takes 3.5 hours[lower-alpha 1] to rotate once around its axis and has an albedo of 0.20, as assumed by the Collaborative Asteroid Lightcurve Link.[4] Its stony composition (S-type) is one of the most common ones among asteroids.
The minor planet is named after the Greek god of the north wind, Boreas, as the asteroid was discovered moving rapidly northward after passing the ascending node of its orbit.[2]
References
- ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 4.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 1.0 1.1 1.2 Pravec (2001) web: rotation period 3.4748±0.0010 hours with a brightness amplitude of 0.28 mag. Behrend (2001) web: rotation period 3.4741±0.0003 hours with a brightness amplitude of 0.29 mag. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1916) Boreas
- ↑ Central Bureau for Astronomical Telegrams – 1953 RA This member of the Amor group, not observed since 1953 (cf. Minor Planet Circ. No. 3015), has been recovered by McCrosky, Schwartz and Bulger with the 155-cm reflector some 0o.3 from an unpublished prediction by B. G. MarsdenInternational Astronomical Union Circular 2710 for (1953 RA)
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
- 1916 Boreas at the JPL Small-Body Database
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