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8239 Signac

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Also known as Signac, (8239) Signac

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

(8239) Signac

Orbit class
Main-belt
Semi-major axis
3.153 AU
Eccentricity
0.112
Inclination
1.264 °
Absolute magnitude
13.530 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Named after
Paul Signac
Followed by
8240 Matisse
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
10.076
Orbital period
2047.063731628601
Show 16 more facts
discoverer or inventor
Tom Gehrels
provisional designation
1976 GG
time of discovery or invention
1973-09-29
site of astronomical discovery
Palomar Observatory
orbital eccentricity
0.1129932403855775
absolute magnitude
13.53
orbital inclination
1.263422739213075
periapsis
2.798651924164854
apoapsis
3.51167636551225
semi-major axis of an orbit
3.155164144838552
mean anomaly
335.5856183717912
longitude of ascending node
165.2516702353498
argument of periapsis
346.2033014197805
albedo
0.083
time of periapsis
2461139.327208781
Sources (2)

via Wikidata · CC0