File:13_Egeria_VLT_(2021),_deconvolved.pdf · Wikimedia Commons · See Wikimedia Commons
13 Egeria is a large asteroid located in the main belt between Mars and Jupiter. It was one of the early asteroids discovered and remains notable as a significant object in our solar system's asteroid population.
AI-generated from the Wikipedia summary — may contain errors.
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
- Egeria
- Followed by
- 14 Irene
- Follows
- 12 Victoria
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 202.636
- Orbital period
- 1510.367555291004
- Image
- 20080122 13EgeriaOccultationProfile.png
Show 21 more facts
- discoverer or inventor
- Annibale de Gasparis
- site of astronomical discovery
- Astronomical Observatory of Capodimonte
- time of discovery or invention
- 1850-11-02
- asteroid spectral type
- C-type asteroid
- Commons category
- 13 Egeria
- density
- 3.46
- rotation period
- 7.045
- albedo
- 0.049
- provisional designation
- A850 VA
- absolute magnitude
- 6.91
- orbital eccentricity
- 0.08468199621905526
- semi-major axis of an orbit
- 2.576258754819395
- periapsis
- 2.358096020684471
- apoapsis
- 2.794421488954319
- orbital inclination
- 16.52553209910489
- longitude of ascending node
- 43.17716190925582
- argument of periapsis
- 79.06456384858149
- mean anomaly
- 40.99101820808148
- time of periapsis
- 2460828.5236001117
- epoch
- November 21, 2025
- different from
- Egeria
Sources (2)
via Wikidata · CC0
~4 min read
Encyclopedic overview
13 Egeria is a large main-belt G-type asteroid. It was discovered by Annibale de Gasparis on 2 November 1850. Egeria was named by Urbain Le Verrier, whose computations led to the discovery of Neptune, after the mythological nymph Egeria of Aricia, Italy, the wife of Numa Pompilius, second king of Rome.
History
Excerpted from Wikipedia’s “13 Egeria” article, available under the CC BY-SA 4.0 licence.