1 day / second

0.5 AU

2867 Šteins

Asteroid

A small, diamond-shaped asteroid roughly 5km across that was visited by ESA's Rosetta spacecraft in 2008, revealing numerous impact craters including a large crater chain near its pole.

Key Facts

orbital regime

Asteroid Belt

learn more

Wikipedia

mass

1.7984e+14 kg

radius

2.58 km

hill radius

940.977 km

semi-major axis

2.365 AU

eccentricity

0.146

inclination

9.929º

longitude of the ascending node

55.333º

argument of periapsis

251.357º

orbital period

3.637 years

discovery date

November 4, 1969

discovered by

Nikolai Chernykh at Crimean Astrophysical Observatory

name origins

Named after Kārlis Šteins, a Latvian astronomer

dimensions

5.16 km in diameter

albedo

0.3

material composition

E-type asteroid, likely composed of enstatite chondrite material
Spacecraft Visits
Rosetta

Flyby

ESA

Launched in 2004, visited in 2008

Rosetta performed a close flyby of asteroid Šteins on September 5, 2008, passing within 800 kilometers of the small diamond-shaped body while capturing detailed images and scientific measurements.

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