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EntityQ193957· pop 23

Also known as Sisley

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
Named after
Alfred Sisley
Followed by
Q194078
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
8.151
Orbital period
1979.266765756413
Show 16 more facts
discoverer or inventor
Tom Gehrels
site of astronomical discovery
Palomar Observatory
provisional designation
1493 T-2
time of discovery or invention
1973-09-29
orbital eccentricity
0.171765142837238
absolute magnitude
14.61
periapsis
2.555195347269957
apoapsis
3.615023945415085
semi-major axis of an orbit
3.085109646342521
mean anomaly
133.1908318153973
longitude of ascending node
66.5142485465685
argument of periapsis
60.63546476724986
orbital inclination
1.560256066559095
albedo
0.051
time of periapsis
2460268.221703012
Sources (2)

via Wikidata · CC0