(40092) Memel
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Asteroid (40092) Memel |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt asteroid |
| Asteroid family | Gefion family |
| Major semi-axis | 2.7560 AU |
| eccentricity | 0.0976 |
| Perihelion - aphelion | 2.4869 AU - 3.0250 AU |
| Inclination of the orbit plane | 7.8606 ° |
| Length of the ascending node | 287.6088 ° |
| Argument of the periapsis | 314.2274 ° |
| Sidereal period | 4.58 a |
| Physical Properties | |
| Absolute brightness | 14.6 mag |
| history | |
| Explorer | Eric Walter Elst |
| Date of discovery | June 28, 1998 |
| Another name | 1998 ME 47 , 2000 YC 49 |
| 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. | |
(40092) Memel is an asteroid of the main middle belt , which was discovered on June 28, 1998 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809).
The asteroid belongs to the Gefion family, a group of asteroids of the central main belt named after (1272) Gefion . The group used to be called the Ceres family (after (1) Ceres , Vincenzo Zappalà 1995) and the Minerva family (after (93) Minerva , AstDyS-2 database). The ageless (not osculating ) orbital elements of (8440) Wigeon are almost identical with those of the two smaller, when one of the absolute brightness starting from 14.7 and 16.1 versus 14.6, asteroid (90389) 2003 WQ 153 and ( 308958) 2006 TK 44 .
According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (40092) Memel assumed a dark surface, so it could, roughly speaking, be around trade a C asteroid .
(40092) Memel was named on April 6, 2012 after the river Memel . As early as November 13, 2008, an asteroid in the main outer belt was named after the river: (151430) Nemunas ( Nemunas is the name of the river in Lithuanian ).
Web links
- (40092) Memel in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (40092) Memel in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances of (40092) Memel according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ^ Gianluca Masi, Sergio Foglia, Richard P. Binzel: Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog . (English)
- ↑ subdivision of asteroids to S-types, C-types and V-types (English)