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11552 Boucolion

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Also known as Boucolion

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
Bucolion
Followed by
11553 Scheria
Parent body
Sun
Diameter
51.136
Orbital period
4450.479446982667
Show 17 more facts
discoverer or inventor
Eric Walter Elst
site of astronomical discovery
Caussols
provisional designation
1994 CE20
time of discovery or invention
1993-01-27
orbital eccentricity
0.1542686100394511
apoapsis
6.111940727787523
semi-major axis of an orbit
5.295076617892803
mean anomaly
87.14707284781704
longitude of ascending node
138.2629357537118
argument of periapsis
183.7003172663067
orbital inclination
14.66308653515744
periapsis
4.478212507998084
absolute magnitude
10.11
albedo
0.062
rotation period
32.44
time of periapsis
2459923.1492872946
Sources (3)

via Wikidata · CC0