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سیارک ۲۰۴۲

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Also known as Sitarski

سیارک

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

(2042) Sitarski

Orbit class
Main-belt
Semi-major axis
2.751 AU
Eccentricity
0.153
Inclination
5.316 °
Absolute magnitude
12.840 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
2043 Ortutay
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1668.259287946821
Show 17 more facts
discoverer or inventor
Ingrid van Houten-Groeneveld
provisional designation
4633 P-L
time of discovery or invention
1960-09-24
site of astronomical discovery
Palomar Observatory
orbital eccentricity
0.1531733771970532
orbital inclination
5.315079735827177
periapsis
2.331155546225559
apoapsis
3.174470950281057
semi-major axis of an orbit
2.752813248253308
mean anomaly
39.33499856062212
longitude of ascending node
17.02476336323162
argument of periapsis
56.04115363887651
absolute magnitude
12.81
rotation period
2.63
asteroid spectral type
S-type asteroid
time of periapsis
2460818.219509194
Sources (2)

via Wikidata · CC0