(18426) Maffei
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Asteroid (18426) Maffei |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.3803 AU |
| eccentricity | 0.1738 |
| Perihelion - aphelion | 1.9666 AU - 2.7939 AU |
| Inclination of the orbit plane | 2.8366 ° |
| Length of the ascending node | 254.2069 ° |
| Argument of the periapsis | 202.8947 ° |
| Sidereal period | 3.67 a |
| Mean orbital velocity | 19.30 km / s |
| Physical Properties | |
| Absolute brightness | 15.1 mag |
| history | |
| Explorer |
Enrico Colzani Graziano Ventre |
| Date of discovery | 18th December 1993 |
| Another name | 1993 YN 2 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(18426) Maffei is an asteroid of the main belt that was discovered on December 18, 1993 by the Italian amateur astronomers Enrico Colzani and Graziano Ventre at the Osservatorio Astronomico Sormano ( IAU code 587) in the province of Como .
The asteroid was named on September 21, 2002 after the Italian astronomer Paolo Maffei (1926–2009), who headed the Catania observatory in Sicily and who discovered the largest members of the Maffei group named after him .
See also
Web links
- Asteroid Maffei: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (18426) Maffei in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (18426) Maffei in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).