(3213) Smolensk

Asteroid (3213) Smolensk
Properties of the orbit ( animation ) Epoch:  July 31, 2016 ( JD 2,457,600.5)
Orbit type	Main outer belt asteroid
Asteroid family	Themis family
Major semi-axis	3.1990  AU
eccentricity	0.1590
Perihelion - aphelion	2.6903 AU - 3.7078 AU
Inclination of the orbit plane	0.9555 °
Length of the ascending node	33.7409 °
Argument of the periapsis	325.9144 °
Time of passage of the perihelion	June 14, 2018
Sidereal period	5.72 a
Mean orbital velocity	16.64 km / s
Physical Properties
Medium diameter	17.720 (± 0.244) km
Albedo	0.074 (± 0.010)
Absolute brightness	12.4 mag
history
Explorer	Nikolai Tschernych
Date of discovery	July 14, 1977
Another name	1977 NQ , 1980 BJ 5 , 1983 PL
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.

(3213) Smolensk is an asteroid of the main outer belt , which was discovered by the Soviet astronomer Nikolai Tschernych on July 14, 1977 at the Crimean Observatory in Nauchnyj ( IAU code 095).

The asteroid belongs to the Themis family, a group of asteroids named after (24) Themis . The timeless (non- osculating ) orbital elements of (3213) Smolensk are almost identical to those of the smaller, if one assumes the absolute brightness of 16.6 compared to 12.4, asteroids (362525) 2010 TT ₁₅₁ .

(3213) Smolensk was named on April 2, 1988 after the western Russian city of Smolensk .

Web links

• (3213) Smolensk in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
• (3213) Smolensk in the Small-Body Database of the Jet Propulsion Laboratory .
• Discovery Circumstances of (3213) Smolensk according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)

Individual evidence

1. ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)