573 Recha
Recha (minor planet designation: 573 Recha) is a minor planet, specifically an asteroid orbiting in the asteroid belt 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 to 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]
Between 2005 and 2022, 573 Recha has been observed to occult four stars.
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, archived from the original on 15 August 2014, 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, vol. 38, no. 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, vol. 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 Archived 16 December 2017 at the Wayback Machine)
- 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