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24999 Hieronymus

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Also known as Hieronymus

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
Hieronymus Bosch
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
3.845
Orbital period
1490.960921208375
Show 16 more facts
discoverer or inventor
Petr Pravec
time of discovery or invention
1998-07-24
site of astronomical discovery
Ondřejov Observatory
provisional designation
1998 OY4
orbital eccentricity
0.1796014511123533
semi-major axis of an orbit
2.554143081090315
mean anomaly
166.0563222770588
longitude of ascending node
231.6026091180147
argument of periapsis
196.1243714591776
absolute magnitude
14.48
orbital inclination
8.13481540743469
periapsis
2.095415277377917
apoapsis
3.012870884802712
albedo
0.228
time of periapsis
2460312.7680910146
Sources (2)

via Wikidata · CC0