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2241 Alcathous

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Also known as (2241) Alcathous, Alcathous

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
Alcathous
Followed by
Q148376
Follows
Q534368
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
113.682
Orbital period
4293.754819321366
Show 19 more facts
discoverer or inventor
Charles T. Kowal
site of astronomical discovery
Palomar Observatory
provisional designation
1979 WM
time of discovery or invention
1979-11-22
orbital eccentricity
0.06667860803489176
albedo
0.048
orbital inclination
16.62787266214854
mean anomaly
188.4827885041257
longitude of ascending node
267.9696807742017
argument of periapsis
291.8984226255732
absolute magnitude
8.52
periapsis
4.825293820264891
apoapsis
5.514753802784302
semi-major axis of an orbit
5.170023811524596
Commons category
2241 Alcathous
rotation period
7.689
asteroid spectral type
D-type asteroid
time of periapsis
2463046.202370714
Sources (4)

via Wikidata · CC0