Skip to content
EntityQ18169125· pop 9

13534 Alain-Fournier

Sign in to save

Also known as Alain-Fournier

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
Alain-Fournier
Parent body
Sun
Diameter
10.947
Orbital period
2099.341676602076
Show 17 more facts
discoverer or inventor
Eric Walter Elst
time of discovery or invention
1991-09-04
site of astronomical discovery
La Silla Observatory
orbital eccentricity
0.1707303637973709
semi-major axis of an orbit
3.208655814695024
mean anomaly
347.8863781158323
longitude of ascending node
8.143735921480568
argument of periapsis
320.5469985885051
absolute magnitude
13.6
orbital inclination
1.253377647894012
periapsis
2.660840840151593
apoapsis
3.756470789238455
provisional designation
1991 RZ11
albedo
0.071
rotation period
6.214
time of periapsis
2461071.1406424334
Sources (2)

via Wikidata · CC0

Available in 9 languages

via Wikidata sitelinks · CC0