In the Vinony graph
Vinony's link graph records 153 inbound references to 4138 Kalchas, and connects out to asteroid family, list of minor planets: 4001–5000 and Lagrangian point.
Vinony files it under Astronomical objects discovered in 1973, Discoveries by Cornelis Johannes van Houten and Discoveries by Ingrid van Houten-Groeneveld.
Vinony links it to 26 Wikipedia language editions.
Picture of the Day · NASA
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
- Calchas
- Followed by
- 4139 Ulʹyanin
- Follows
- 4137 Crabtree
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 46.462
- Orbital period
- 4303.928220091964
Show 18 more facts
- discoverer or inventor
- Tom Gehrels
- site of astronomical discovery
- Palomar Observatory
- provisional designation
- 1986 VU6
- time of discovery or invention
- 1973-09-19
- semi-major axis of an orbit
- 5.178186981568641
- periapsis
- 4.9535063930851
- apoapsis
- 5.402867570052182
- orbital inclination
- 2.097557581508488
- longitude of ascending node
- 207.9974051434415
- argument of periapsis
- 167.2306714264347
- mean anomaly
- 155.4826172839458
- rotation period
- 29.2
- absolute magnitude
- 10.15
- apparent magnitude
- 17.48
- orbital eccentricity
- 0.04338981757191732
- albedo
- 0.082
- time of periapsis
- 2459141.649932605
- epoch
- November 21, 2025
via Wikidata · CC0