573 Recha
Recha (minor planet designation: 573 Recha) is a minor planet orbiting the Sun. It is in the asteroid belt, orbiting between Mars and Jupiter. The asteroid, discovered by German astronomer Max Wolf on September 19, 1905, was named after a character in Gotthold Ephraim Lessing's play Nathan the Wise and may have been inspired by the asteroid's provisional designation 1905 RC.
.png.webp) A three-dimensional model of 573 Recha based on its light curve | |
| Discovery | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg |
| Discovery date | 19 September 1905 |
| Designations | |
| (573) Recha | |
| Pronunciation | /ˈriːkə/,[1] German: [ˈʁeːçaː] |
| 1905 RC | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.43 yr (40335 d) |
| Aphelion | 3.3562 AU (502.08 Gm) |
| Perihelion | 2.6689 AU (399.26 Gm) |
| 3.0125 AU (450.66 Gm) | |
| Eccentricity | 0.11407 |
| 5.23 yr (1909.8 d) | |
| 55.621° | |
| 0° 11m 18.6s / day | |
| Inclination | 9.8334° |
| 342.959° | |
| 28.910° | |
| Physical characteristics | |
Mean radius | 24.00±1.9 km |
| 7.15 h[3] 7.16633 h (0.298597 d)[2] | |
| 0.1109±0.020 | |
| 9.5 | |
Photometric observations at the Palmer Divide Observatory in Colorado Springs, Colorado from 2001–2006 were used to build a light curve for this object. The asteroid displayed a rotation period of 7.15 ± 0.01 hours and a brightness variation of 0.20 ± 0.02 in magnitude.[3]
This is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.[4]
References
- 'Rechah' in Noah Webster (1884) A Practical Dictionary of the English Language
- Yeomans, Donald K., "573 Recha", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.
- Warner, Brian D. (January 2011), "Upon Further Review: IV. An Examination of Previous Lightcurve Analysis from the Palmer Divide Observatory", The Minor Planet Bulletin, 38 (1), pp. 52–54, Bibcode:2011MPBu...38...52W.
- Veeder, G. J.; et al. (March 1995), "Eos, Koronis, and Maria family asteroids: Infrared (JHK) photometry" (PDF), Icarus, 114, pp. 186–196, Bibcode:1995Icar..114..186V, CiteSeerX 10.1.1.31.2739, doi:10.1006/icar.1995.1053.
External links
- Lightcurve plot of 573 Recha, Palmer Divide Observatory, B. D. Warner (2005)
- 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
- 573 Recha at AstDyS-2, Asteroids—Dynamic Site
- 573 Recha at the JPL Small-Body Database
