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21456 Myers

Image by kenny on Pixabay · Pixabay License

EntityQ607151· pop 14

21456 Myers

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Also known as Myers

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

(21456) Myers

Orbit class
Main-belt
Semi-major axis
2.279 AU
Eccentricity
0.165
Inclination
2.235 °
Absolute magnitude
15.800 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
21457 Fevig
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1256.390228040001
Show 14 more facts
provisional designation
1999 TL310
time of discovery or invention
1998-04-20
orbital eccentricity
0.1653629712902179
mean anomaly
346.587775204976
longitude of ascending node
170.6395936246919
argument of periapsis
64.88953680914895
absolute magnitude
15.8
orbital inclination
2.234644395935329
periapsis
1.901873951622192
apoapsis
2.655493829105655
semi-major axis of an orbit
2.278683890363923
time of periapsis
2461047.3083004686
Sources (2)

via Wikidata · CC0

Gallery (2)