574 Reginhild

574 Reginhild is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on September 19, 1905. The name may have been inspired by the asteroid's provisional designation 1905 RD.

574 Reginhild

Discovery
Discovered by	M. F. Wolf
Discovery site	Heidelberg
Discovery date	19 September 1905
Designations
MPC designation	(574) Reginhild
Pronunciation	German: [ˈʁeːɡɪnhɪlt]
Alternative designations	1905 RD
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	109.81 yr (40109 d)
Aphelion	2.7924 AU (417.74 Gm)
Perihelion	1.7120 AU (256.11 Gm)
Semi-major axis	2.2522 AU (336.92 Gm)
Eccentricity	0.23985
Orbital period (sidereal)	3.38 yr (1234.6 d)
Mean anomaly	249.806°
Mean motion	0° 17m 29.76s / day
Inclination	5.6840°
Longitude of ascending node	336.810°
Argument of perihelion	76.710°
Physical characteristics
Mean radius	3.73±0.25 km
Synodic rotation period	14.339 h (0.5975 d)[1][2]
Geometric albedo	0.3819±0.057
Absolute magnitude (H)	12.30

Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico during 2010 gave a light curve with a period of 14.339 ± 0.001 hours and a brightness variation of 0.17 ± 0.02 in magnitude. The light curve shows three uneven minimums and maximums per rotation cycle.^[2]