(3451) Mentor ( Latin Mentor , Greek Μέντωρ ) is a Jupiter Trojan asteroid moving at the Lagrange point L 5 , 60 ° behind the planet, belonging to the spectral class X. It was discovered on April 19, 1984 by the Czech astronomer Antonin Mrkos at the Klet observatory and named after Mentor , a character in ancient Greek mythology [1] .
- Orbit of the asteroid Mentor and its position in the solar system
| (3451) Mentor | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | A. Mrkos |
| Place of discovery | Stand |
| Discovery date | April 19, 1984 |
| Eponym | Mentor |
| Alternative notation | 1984 HA 1 ; 1950 HG 1 |
| Category | Jupiter Trojans ( L 5 ) |
| Orbital characteristics | |
| Age of December 9, 2014 JD 2457000.5 | |
| Eccentricity ( e ) | 0,0713465 |
| Semimajor axis ( a ) | 766.755 million km (5.1254411 AU ) |
| Perihelion ( q ) | 712.05 million km (4,7597588 AE) |
| Aphelion ( Q ) | 821.46 million km (5,4911234 AU) |
| Circulation Period ( P ) | 4238.335 days (11.604 g. ) |
| Average orbital speed | 13,139 km / s |
| Inclination ( i ) | 24.65964 ° |
| Longitude node (Ω) | 179.67771 ° |
| Perihelion Argument (ω) | 133.30732 ° |
| Median Anomaly ( M ) | 132.53826 ° |
| physical characteristics | |
| Diameter | 56 - 124 km |
| Rotation period | 7,730 h |
| Spectral class | X |
| Apparent magnitude | 16.28 m (current) |
| Absolute magnitude | 8.4 m |
| Albedo | 0,0626 |
| Current distance from the sun | 5.1 a. e. |
| Current distance from earth | 5,438 a. e. |
Photometric observations carried out in 1998 made it possible to obtain the light curves of this body, from which it followed that the period of rotation of the asteroid around its axis is 7.030 ± 0.005 hours, with a change in brightness with rotation of 0.15 ± 0.01 m [2] .
See also
- List of Asteroids ( 3401–3500 )
- Classifications of Minor Planets
- List of Trojan asteroids ("Greeks")
- List of Trojan asteroids (“Trojans”)
Notes
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003 .-- P. 289. - ISBN 3-540-00238-3 .
- ↑ Stefano Mottola1, Mario Di Martino, Anders Erikson, Maria Gonano-Beurer, Albino Carbognani, Uri Carsenty, Gerhard Hahn, Hans-Josef Schober, Felix Lahulla, Marco Delbò, and Claes-Ingvar Lagerkvist. ROTATIONAL PROPERTIES OF JUPITER TROJANS. I. LIGHT CURVES OF 80 OBJECTS . The American Astronomical Society . The Astronomical Journal (May 2011). Date of treatment December 30, 2014.