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 2 "JPL Small-Body Database Browser: 1374 Isora (1935 UA)" (2015-09-23 last obs.). Jet Propulsion Laboratory. Retrieved November 2015.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1374) Isora. Springer Berlin Heidelberg. p. 111. ISBN 978-3-540-29925-7. Retrieved November 2015.
- 1 2 3 4 5 "LCDB Data for (1374) Isora". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
- 1 2 Stephens, Robert D. (July 2014). "Asteroids Observed from CS3: 2014 January - March". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 41 (3): 171–175. Bibcode:2014MPBu...41..171S. ISSN 1052-8091. Retrieved November 2015.
- 1 2 Wisniewski, W. Z.; Michalowski, T. M.; Harris, A. W.; McMillan, R. S. (March 1995). "Photoelectric Observations of 125 Asteroids". Abstracts of the Lunar and Planetary Science Conference. Bibcode:1995LPI....26.1511W. Retrieved November 2015.
- ↑ "1374 Isora (1935 UA)". Minor Planet Center. 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
- 1374 Isora at the JPL Small-Body Database
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