“91 Aegina”的意思、由来-开放百科全书

词条

91 Aegina

释义

References
External links

{{Infobox planet
| minorplanet=yes
| background=#D6D6D6
| name=91 Aegina
| discoverer=Édouard Stephan
| discovered=November 4, 1866
| mpc_name=(91) Aegina
| alt_names=
| pronounced = {{IPAc-en|ᵻ|ˈ|dʒ|aɪ|n|ə}} {{Respell|i|JY|nə}}
| named_after = Aegina
| mp_category=Main belt
| epoch=December 31, 2006 (JD 2454100.5)
| semimajor=387.640 Gm (2.591 AU)
| perihelion=346.826 Gm (2.318 AU)
| aphelion=428.453 Gm (2.864 AU)
| eccentricity=0.105
| period=1523.536 d (4.17 a)
| inclination=2.109°
| asc_node=10.806°
| arg_peri=73.371°
| mean_anomaly=183.458°
| avg_speed=18.45 km/s
| dimensions=109.8 km
| mass=1.4{{e|18}} kg
| density=
| surface_grav=0.0307 m/s²
| escape_velocity=0.0580 km/s
| rotation=
| spectral_type=C
| abs_magnitude=8.84
| albedo=0.043 ^[1]
}}

Aegina ({{IPAc-en|ᵻ|ˈ|dʒ|aɪ|n|ə}} {{Respell|i|JY|nə}}; 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 November 4, 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. ^Asteroid Data Sets {{webarchive|url=https://www.webcitation.org/5mqof7ROl?url=http://www.psi.edu/pds/resource/albedo.html |date=2010-01-17 }}

External links

Lightcurve plot of 91 Aegina, Palmer Divide Observatory, B. D. Warner (2009)
Asteroid Lightcurve Database (LCDB), query form (info)
[https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
{{AstDys|91}}
{{JPL small body}}

{{Use dmy dates|date=July 2018}}{{Minor planets navigator |90 Antiope |number=91 |92 Undina}}{{Small Solar System bodies}}{{DEFAULTSORT:Aegina}}{{C-beltasteroid-stub}}

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