1374 Isora
Discovery [1] | |
---|---|
Discovered by | E. Delporte |
Discovery site | Uccle – Belgium |
Discovery date | 21 October 1935 |
Designations | |
MPC designation | 1374 Isora |
Named after
|
(unknown)[2] |
1935 UA | |
Mars-crosser [3] | |
Orbital characteristics [1] | |
Epoch 27 June 2015 (JD 2457200.5) | |
Uncertainty parameter 0 | |
Observation arc | 79.92 yr (29,192 days) |
Aphelion | 2.8770 AU |
Perihelion | 1.6229 AU |
2.2500 AU | |
Eccentricity | 0.2786 |
3.38 yr (1,233 days) | |
229.74° | |
Inclination | 5.2945° |
302.56° | |
61.021° | |
Earth MOID | 0.6286 AU |
Physical characteristics | |
Dimensions | 5.48 km (derived)[3] |
36.699 h[4] 8±2 h[5] |
|
0.20 (assumed)[3] | |
SMASS = Sq S [3] |
|
13.2 | |
1374 Isora, provisional designation 1935 UA, is a stony asteroid and eccentric Mars-crosser from the innermost regions of the asteroid belt, about 5 kilometers in diameter. It was discovered by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle, on 21 October 1935.[6]
The S-type asteroid, classified as a Sq-subtype in the SMASS taxonomy, orbits the Sun at a distance of 1.6–2.9 AU once every 3 years and 5 months (1,233 days). Its orbit shows a high eccentricity of 0.28 and is tilted by 5 degrees to the plane of the ecliptic. In 2014, CCD photometric observations of its light-curve resulted in a rather long rotation period of 36.7 hours,[4] superseding an older observation from the 1990s, which found a period of only 8±2 hours.[5] The Collaborative Asteroid Lightcurve Link (CALL) assumes a geometric albedo of 0.20, typical for a stony asteroid.[3]
The asteroid's named was proposed by Gustav Stracke, (1887–1943), astronomer at the German Astronomisches Rechen-Institut, and after whom the minor planet 1019 Strackea is named. It is not known whether or not the name refers to any person, location or occurrence.[2]
References
- ↑ 1.0 1.1 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.
- ↑ 3.0 3.1 3.2 3.3 3.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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
- 1374 Isora at the JPL Small-Body Database
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