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20947 Polyneikes

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Also known as (20947) Polyneikes, (20947) 2638 T-2, 2638 T-2

asteroid

In the Vinony graph

Within Vinony's link graph, 20947 Polyneikes connects to HTML element, list of minor planets: 20001–21000 and JPL Small-Body Database.

It sits within the topics Astronomical objects discovered in 1973, Discoveries by Cornelis Johannes van Houten and Discoveries by Ingrid van Houten-Groeneveld.

Vinony links it to 19 Wikipedia language editions.

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

Orbital period
4166.267538249039
Show 13 more facts
provisional designation
2638 T-2
time of discovery or invention
1973-09-29
orbital eccentricity
0.02438989365246467
absolute magnitude
12.01
orbital inclination
2.328207031624747
periapsis
4.943586176705963
apoapsis
5.190761847247248
semi-major axis of an orbit
5.067174011976605
mean anomaly
70.59127526476784
longitude of ascending node
52.23781288330036
argument of periapsis
39.12992255138242
Commons category
20947 Polyneikes
time of periapsis
2460183.549614947
Sources (3)

via Wikidata · CC0

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