(91) Aegina

91 Aegina
Discovery
Discovered byÉdouard Stephan
Discovery date4 November 1866
Designations
(91) Aegina
Pronunciation/ɪˈnə/[1]
Named after
Aegina
Main belt
AdjectivesAeginetan /ɪˈntən/[2]
Orbital characteristics
Epoch 31 December 2006 (JD 2454100.5)
Aphelion428.453 Gm (2.864 AU)
Perihelion346.826 Gm (2.318 AU)
387.640 Gm (2.591 AU)
Eccentricity0.105
1523.536 d (4.17 a)
18.45 km/s
183.458°
Inclination2.109°
10.806°
73.371°
Physical characteristics
Dimensions109.8 km
Mass1.4×1018 kg
Equatorial surface gravity
0.0307 m/s²
Equatorial escape velocity
0.0580 km/s
0.043 [3]
C
8.84

Aegina (from Latin Aegīna, Aegīnēta),[4] minor planet designation 91 Aegina, is a large main-belt asteroid. Its surface coloring is very dark and the asteroid has probably a primitive carbonaceous composition. It was discovered by a French astronomer Édouard Jean-Marie Stephan on 4 November 1866. It was his second and final asteroid discovery. The first was 89 Julia. The asteroid's name comes from Aegina, a Greek mythological figure associated with the island of the same name.

References[]

  1. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  2. ^ Figueira (1981) Aegina, society and politics
  3. ^ Asteroid Data Sets Archived 17 December 2009 at the Wayback Machine
  4. ^ Charlton T. Lewis, Charles Short, A Latin Dictionary

External links[]