1825 Klare
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 31 August 1954 |
| Designations | |
| MPC designation | 1825 Klare |
Named after |
Gerhard Klare (astronomer)[2] |
|
1954 QH · 1934 CH 1952 DW2 · 1954 SB 1954 SF · 1954 UF1 1969 AV | |
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 81.86 yr (29900 days) |
| Aphelion | 2.9855 AU (446.62 Gm) |
| Perihelion | 2.3699 AU (354.53 Gm) |
| 2.6777 AU (400.58 Gm) | |
| Eccentricity | 0.11494 |
| 4.38 yr (1600.5 d) | |
| 296.06° | |
| 0° 13m 29.784s / day | |
| Inclination | 4.0340° |
| 288.68° | |
| 142.50° | |
| Earth MOID | 1.38533 AU (207.242 Gm) |
| Jupiter MOID | 2.26567 AU (338.939 Gm) |
| Jupiter Tisserand parameter | 3.365 |
| Physical characteristics | |
| Dimensions |
14.69±0.82 km[4] 20.12 km (calculated)[3] |
|
4.744 h (0.1977 d)[1][5] 4.7429±0.0003 h[6] 4.74173±0.00007 h[7] 4.7410±0.0001 h[lower-alpha 1] 4.7431±0.0001 h[8] 4.7421±0.0001 h[9] | |
|
0.167±0.021[4] 0.10 (assumed)[3] | |
| S [3] | |
| 11.7 | |
|
| |
1825 Klare, provisional designation 1954 QH, is a stony asteroid from the middle region of the asteroid belt, that measures between 15 and 20 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 31 August 1954.[10]
The S-type asteroid orbits the Sun at a distance of 2.4–3.0 AU once every 4.38 years (1,601 days). Its orbit has an eccentricity of 0.12 and is tilted by 4 degrees to the plane of the ecliptic.[1] For a silicaceous asteroid, it has a rather low albedo of 0.10–0.17.[3][4]
The main-belt asteroid has been the subject of multiple light-curve studies, which delivered an exceptionally well-determined rotation period of 4.74 hours.[5][6][7][8] Measurements have also been used as the basis for generating a three-dimensional model of its shape.[9]
It was named after Gerhard Klare (born 1932), an observing astronomer at Heidelberg Observatory since 1960, whose fields of interest include minor planets.[2] He is also known for his numerous contributions in the yearbook series "Reviews in Modern Astronomy" of the Astronomische Gesellschaft.
Notes
- ↑ Hamanowa 2011, web publication, summary figures given in the Light Curve Data Base – (1825) Klare
References
- 1 2 3 4 "JPL Small-Body Database Browser: 1825 Klare (1954 QH)" (2015-10-05 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1825) Klare. Springer Berlin Heidelberg. p. 146. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.
- 1 2 3 4 5 "LCDB Data for (1825) Klare". Asteroid Lightcurve Database (LCDB). Retrieved 22 August 2016.
- 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 22 August 2016.
- 1 2 Pray, Donald P. (June 2004). "Lightcurve analysis of asteroids 110, 196, 776, 804, and 1825". The Minor Planet Bulletin. 31 (2): 34–36. Bibcode:2004MPBu...31...34P. ISSN 1052-8091. Retrieved 22 August 2016.
- 1 2 Clark, Maurice (September 2006). "Lightcurve results for 383 Janina, 899 Jokaste, 1825 Klare, 2525 O'Steen 5064 Tanchozuru, and (17939) 1999 HH8". The Minor Planet Bulletin. 33 (3): 53–56. Bibcode:2006MPBu...33...53C. ISSN 1052-8091. Retrieved 22 August 2016.
- 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1825) Klare". Geneva Observatory. Retrieved 22 August 2016.
- 1 2 Galad, Adrian (September 2008). "Part of Simple Lightcurves from Modra (October 2007- February 2008)". The Minor Planet Bulletin. 35 (3): 128–132. Bibcode:2008MPBu...35..128G. ISSN 1052-8091. Retrieved 22 August 2016.
- 1 2 Krueng, Mahfuz; Clark, Maurice (April 2014). "Shaping a 3-D Model of Asteroid 1825 Klare". The Minor Planet Bulletin. 41 (2): 86–89. Bibcode:2014MPBu...41...86K. ISSN 1052-8091. Retrieved 22 August 2016.
- ↑ "1825 Klare (1954 QH)". Minor Planet Center. Retrieved 22 August 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Geneve, Raoul Behrend
- 1825 Klare at the JPL Small-Body Database
- PowerPoint presentation – Asteroid 1825 Klare, by Mahfuz Krueng