File:001094-asteroid_shape_model_(1094)_Siberia.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
Key facts
- Discovered by
- S. Belyavskyj
- Discovery site
- Simeiz Obs.
- Discovery date
- 12 February 1926
- Pronunciation
- / s aɪ ˈ b ɪər i ə /
- Named after
- Siberia , (Region in North Asia )
- Alternative designations
- 1926 CB · A918 EJ
- Minor planet category
- main-belt · ( middle ) , Eunomia
- Observation arc
- 82.07 yr (29,977 days)
- Aphelion
- 2.8844 AU
- Perihelion
- 2.2048 AU
- Semi major axis
- 2.5446 AU
- Orbital period sidereal
- 4.06 yr (1,483 days)
- Mean anomaly
- 221.13 °
- Mean motion
- 0° 14 34.08 / day
- Inclination
- 14.028°
- Longitude of ascending node
- 149.14°
- Argument of perihelion
- 310.29°
- Dimensions
- 17.08 ± 6.34 km , 17.869 ± 0.180 km , 17.87 ± 0.18 km , 18.05 ± 1.0 km , 18.16 km (derived) , 18.36 ± 4.08 km , 18.79 ± 0.24 km
via Wikipedia infobox
Wikidata facts
- Instance of
- asteroid
- Named after
- Siberia
- Followed by
- 1095 Tulipa
- Follows
- Q135840
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 17.869
- Orbital period
- 1484.059948584392
- Image
- 001094-asteroid shape model (1094) Siberia.png
Show 19 more facts
- discoverer or inventor
- Sergey Belyavsky
- site of astronomical discovery
- Simeiz Observatory
- provisional designation
- A918 EJ
- time of discovery or invention
- 1926-02-12
- orbital inclination
- 14.02459819511814
- orbital eccentricity
- 0.1308007565164116
- albedo
- 0.127
- periapsis
- 2.213203516019611
- apoapsis
- 2.879307856055459
- semi-major axis of an orbit
- 2.546255686037535
- mean anomaly
- 228.5401572999178
- longitude of ascending node
- 149.0743886270374
- argument of periapsis
- 310.7532429385939
- absolute magnitude
- 11.66
- Commons category
- 1094 Siberia
- rotation period
- 21.15
- asteroid spectral type
- X-type asteroid
- time of periapsis
- 2461542.4285761067
- epoch
- November 21, 2025
Sources (2)
via Wikidata · CC0
~3 min read
Encyclopedic overview
1094 Siberia (prov. designation: 1926 CB) is an Eunomian asteroid from the central regions of the asteroid belt. It was discovered on 12 February 1926, by Soviet astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. The X-type asteroid (Xk) has a rotation period of 21.2 hours and measures approximately 18 kilometers (11 miles) in diameter. It was named after the vast region of Siberia in North Asia.
Orbit and classification
Excerpted from Wikipedia’s “1094 Siberia” article, available under the CC BY-SA 4.0 licence.