573 Recha

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 by	M. F. Wolf
Discovery site	Heidelberg
Discovery date	19 September 1905
Designations
MPC designation	(573) Recha
Pronunciation	/ˈriːkə/,[1] German: [ˈʁeːçaː]
Alternative designations	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)
Semi-major axis	3.0125 AU (450.66 Gm)
Eccentricity	0.11407
Orbital period (sidereal)	5.23 yr (1909.8 d)
Mean anomaly	55.621°
Mean motion	0° 11m 18.6s / day
Inclination	9.8334°
Longitude of ascending node	342.959°
Argument of perihelion	28.910°
Physical characteristics
Mean radius	24.00±1.9 km
Synodic rotation period	7.15 h[3] 7.16633 h (0.298597 d)[2]
Geometric albedo	0.1109±0.020
Absolute magnitude (H)	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.