554 Peraga

554 Peraga is a minor planet orbiting the Sun that was discovered by German astronomer Paul Götz on January 8, 1905, from Heidelberg.

554 Peraga

Discovery
Discovered by	Paul Götz
Discovery site	Heidelberg
Discovery date	8 January 1905
Designations
MPC designation	(554) Peraga
Pronunciation	Italian: [peˈraːɡa]
Alternative designations	1905 PS
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	115.51 yr (42190 d)
Aphelion	2.7391 AU (409.76 Gm)
Perihelion	2.0095 AU (300.62 Gm)
Semi-major axis	2.3743 AU (355.19 Gm)
Eccentricity	0.15364
Orbital period (sidereal)	3.66 yr (1336.3 d)
Mean anomaly	215.70°
Mean motion	0° 16m 9.84s / day
Inclination	2.9349°
Longitude of ascending node	295.434°
Argument of perihelion	127.356°
Physical characteristics
Mean radius	47.935±2.05 km[1] 48.23 ± 0.84 km[2]
Mass	(6.59 ± 0.66) × 1017 kg[2]
Mean density	1.40 ± 0.15 g/cm3[2]
Synodic rotation period	13.7128 h (0.57137 d)
Geometric albedo	0.0496±0.005
Absolute magnitude (H)	9.1

13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 101 km.^[3]