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7809 Marcialangton

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Also known as (7809) 1979 ML1, 1979 ML1

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

Small body data

(7809) Marcialangton

Orbit class
Main-belt
Semi-major axis
2.347 AU
Eccentricity
0.120
Inclination
6.315 °
Absolute magnitude
14.420 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Named after
Marcia Langton
Followed by
(7810) 1981 DE
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.251
Orbital period
1312.839549785679
Show 16 more facts
discoverer or inventor
Schelte J. Bus
site of astronomical discovery
Siding Spring Observatory
provisional designation
1990 RY8
time of discovery or invention
1979-06-25
orbital eccentricity
0.1204641541332737
albedo
0.245
orbital inclination
6.31568869230946
periapsis
2.063775062851505
apoapsis
2.629098053235735
semi-major axis of an orbit
2.34643655804362
mean anomaly
299.1368667790222
longitude of ascending node
274.6371717130608
argument of periapsis
48.87515466489169
absolute magnitude
14.42
time of periapsis
2461222.454245601
Sources (3)

via Wikidata · CC0