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.

573 Recha
A three-dimensional model of 573 Recha based on its light curve
Discovery
Discovered byM. F. Wolf
Discovery siteHeidelberg
Discovery date19 September 1905
Designations
(573) Recha
Pronunciation/ˈrkə/,[1]
German: [ˈʁeːçaː]
1905 RC
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc110.43 yr (40335 d)
Aphelion3.3562 AU (502.08 Gm)
Perihelion2.6689 AU (399.26 Gm)
3.0125 AU (450.66 Gm)
Eccentricity0.11407
5.23 yr (1909.8 d)
55.621°
0° 11m 18.6s / day
Inclination9.8334°
342.959°
28.910°
Physical characteristics
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

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  1. ^ 'Rechah' in Noah Webster (1884) A Practical Dictionary of the English Language
  2. ^ a b 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.
  3. ^ a b 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.
  4. ^ 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.
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