File:000673-asteroid_shape_model_(673)_Edda.png · Wikimedia Commons · See Wikimedia Commons
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
Small body data
(673) Edda
- Orbit class
- Main-belt
- Semi-major axis
- 2.815 AU
- Eccentricity
- 0.009
- Inclination
- 2.881 °
- Absolute magnitude
- 10.140 H
via Minor Planet Center
Key facts
- Discovered by
- Joel Hastings Metcalf
- Discovery site
- Taunton, Massachusetts
- Discovery date
- 20 September 1908
- Pronunciation
- / ˈ ɛ d ə /
- Alternative designations
- 1908 EA
- Observation arc
- 107.57 yr (39290 d)
- Aphelion
- 2.8471 AU (425.92 Gm )
- Perihelion
- 2.7821 AU (416.20 Gm)
- Semi major axis
- 2.8146 AU (421.06 Gm)
- Orbital period sidereal
- 4.72 yr (1,724.7 d) 4.72 yr (1724.7 d )
- Mean anomaly
- 199.04 °
- Mean motion
- 0° 12 31.428 / day
- Inclination
- 2.8770°
- Longitude of ascending node
- 226.723°
- Argument of perihelion
- 236.303°
- Mean radius
- 18.765 ± 0.5 km
- Synodic rotation period
- 22.340 h (0.9308 d )
- Geometric albedo
- 0.1044 ± 0.006
via Wikipedia infobox
Wikidata facts
- Instance of
- asteroid
- Named after
- Edda
- Followed by
- 674 Rachele
- Follows
- 672 Astarte
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 37.622
- Orbital period
- 1725.274528275302
- Image
- 000673-asteroid shape model (673) Edda.png
Show 19 more facts
- discoverer or inventor
- Joel Hastings Metcalf
- provisional designation
- A908 SG
- time of discovery or invention
- 1908-09-20
- orbital inclination
- 2.880746527445637
- site of astronomical discovery
- Taunton
- Commons category
- 673 Edda
- albedo
- 0.092
- rotation period
- 22.34
- asteroid spectral type
- S-type asteroid
- absolute magnitude
- 10.12
- orbital eccentricity
- 0.008937473022632108
- semi-major axis of an orbit
- 2.815182294415012
- periapsis
- 2.790021678604886
- apoapsis
- 2.840342910225137
- longitude of ascending node
- 226.3885396098876
- argument of periapsis
- 256.5976750801498
- mean anomaly
- 168.4640364432142
- time of periapsis
- 2460193.1480249837
- epoch
- November 21, 2025
Sources (2)
via Wikidata · CC0
Article · Italiano
673 Edda è un asteroide della fascia principale del diametro medio di circa 37,53 km. Scoperto nel 1908, presenta un'orbita caratterizzata da un semiasse maggiore pari a 2,8137367 UA e da un'eccentricità di 0,0110979, inclinata di 2,87948° rispetto all'eclittica. Il suo nome fa riferimento all'Edda poetica, che insieme all'Edda in prosa costituisce una raccolta di leggende norrene.
Abstract from DBpedia / Wikipedia · CC BY-SA