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4240 Grün

Image by BunteAufnahmen on Pixabay · Pixabay License

EntityQ153130· pop 26

4240 Grün

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Also known as 4240 Grun, Grün

asteroid

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

Wikidata facts

Instance of
asteroid
Followed by
Q153138
Follows
Q153121
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1839.075975673216
Show 15 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1981 EY20
time of discovery or invention
1981-03-02
orbital eccentricity
0.1096671735041745
orbital inclination
1.14473324194221
periapsis
2.61549091347835
apoapsis
3.25981961229976
semi-major axis of an orbit
2.937655262889055
mean anomaly
148.7253175210267
longitude of ascending node
320.4826505061161
argument of periapsis
24.26541644290237
absolute magnitude
13.65
time of periapsis
2460240.73011548
Sources (2)

via Wikidata · CC0

Gallery (2)