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11771 Maestlin

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Also known as Maestlin

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
Michael Maestlin
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
7.602
Orbital period
1817.036034618575
Show 17 more facts
discoverer or inventor
Tom Gehrels
provisional designation
4136 T-2
time of discovery or invention
1973-09-29
site of astronomical discovery
Palomar Observatory
orbital eccentricity
0.2173090244904352
orbital inclination
7.508289143338707
periapsis
2.280869311347545
apoapsis
3.547406170844141
semi-major axis of an orbit
2.914137741095843
mean anomaly
181.9528584578724
longitude of ascending node
31.68263482676988
argument of periapsis
307.7604807130594
absolute magnitude
14.21
albedo
0.084
rotation period
4.098
time of periapsis
2461899.16131123
Sources (3)

via Wikidata · CC0