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4678 Ninian

Image by Graham-H on Pixabay · Pixabay License

EntityQ918247· pop 24

4678 Ninian

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Also known as Ninian

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
Followed by
4679 Sybil
Follows
Q1045442
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.003
Orbital period
1245.561022060715
Show 18 more facts
discoverer or inventor
Robert H. McNaught
site of astronomical discovery
Siding Spring Observatory
provisional designation
1990 SS4
time of discovery or invention
1990-09-24
orbital eccentricity
0.2142721963120603
orbital inclination
3.740274460097164
periapsis
1.78012230874156
apoapsis
2.751020156591269
semi-major axis of an orbit
2.265571232666415
mean anomaly
107.9283588623884
longitude of ascending node
30.37639870642975
argument of periapsis
323.4870071018669
absolute magnitude
13.89
albedo
0.177
rotation period
56.72
asteroid spectral type
S-type asteroid
time of periapsis
2460627.0795639614
Sources (2)

via Wikidata · CC0

Gallery (2)