(2787) Tovarishch

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Asteroid
(2787) Tovarishch
Properties of the orbit ( animation )
Epoch:  December 9, 2014 ( JD 2,457,000.5)
Orbit type Main belt asteroid
Asteroid family Eos family
Major semi-axis 3.0213  AU
eccentricity 0.0559
Perihelion - aphelion 2.8526 AU - 3.1901 AU
Inclination of the orbit plane 10.3250 °
Length of the ascending node 30.2424 °
Argument of the periapsis 62.4261 °
Sidereal period 5.25 a
Mean orbital velocity 17.14 km / s
Physical Properties
Medium diameter approx. 20 km
Absolute brightness 11.4 mag
history
Explorer NS Tschernych
Date of discovery September 13, 1978
Another name 1978 RC 6 , 1957 UY, 1970 EB 1 , 1976 JO 3
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.

(2787) Tovarishch is an asteroid of the main belt that was discovered on September 13, 1978 by the Russian astronomer Nikolai Stepanowitsch Tschernych at the Crimean Observatory in Nauchnyj ( IAU code 095).

The asteroid belongs to the Eos family, a group of asteroids, which typically have large semiaxes from 2.95 to 3.1 AU , bounded inward by the Kirkwood gap of the 7: 3 resonance with Jupiter , and orbital inclinations between 8 ° and 12 °. The group is named after the asteroid (221) Eos . The family is believed to have emerged from a collision more than a billion years ago.

(2787) Tovarishch was named after the former Soviet sailing training ship Towarishch (in German: "Comrade" or "Comrade"), which was built in 1933 as Gorch Fock and in 1951 put back into service as a sailing training ship of the Soviet Navy . As such, she won Operation Sail in 1974 and 1976, respectively .

See also

Individual evidence

  1. ↑ The family affiliation of (2787) Tovarishch in the AstDyS-2 database (English)
  2. ↑ David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family ( PDF , English)

Web links