Skip to content
EntityQ152616· pop 27· linked from 151 articles

Also known as (4068) Menestheus, Menestheus

Jupiter Trojan 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
Menestheus
Followed by
Q152617
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
67.625
Orbital period
4243.033193654906
Show 18 more facts
discoverer or inventor
Tom Gehrels
site of astronomical discovery
Palomar Observatory
provisional designation
1987 WR3
time of discovery or invention
1973-09-19
orbital eccentricity
0.07447818774649304
orbital inclination
17.5763326855283
periapsis
4.747212363931127
apoapsis
5.511243571045438
semi-major axis of an orbit
5.129227967488283
mean anomaly
17.87086212194171
longitude of ascending node
177.614842709896
argument of periapsis
318.9004515027042
absolute magnitude
9.63
Commons category
4068 Menestheus
albedo
0.061
rotation period
14.301
time of periapsis
2460789.870385604
Sources (3)

via Wikidata · CC0