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4509 Gorbatskij

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Also known as A917 SG, Gorbatskij

main-belt asteroid discovered on September 23, 1917

Picture of the Day · NASA

Pathfinder on Mars

Pathfinder on Mars

2026-07-04

On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.

via NASA APOD

Small body data

(4509) Gorbatskij

Orbit class
Main-belt
Semi-major axis
2.761 AU
Eccentricity
0.272
Inclination
10.945 °
Absolute magnitude
11.980 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
4510 Shawna
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
11.562
Orbital period
1675.068691622402
Show 18 more facts
discoverer or inventor
Sergey Belyavsky
site of astronomical discovery
Simeiz Observatory
provisional designation
A917 SG
time of discovery or invention
1917-09-23
orbital eccentricity
0.2724216446522607
orbital inclination
10.94653542815459
periapsis
2.008333814061073
apoapsis
3.512264206206335
semi-major axis of an orbit
2.760299010133704
mean anomaly
202.5662360350271
longitude of ascending node
184.2948949025811
argument of periapsis
176.4250791548686
absolute magnitude
12.0
Commons category
4509 Gorbatskij
albedo
0.159
rotation period
6.006
time of periapsis
2461733.0343583943
Sources (2)

via Wikidata · CC0