File:Sedna_PRC2004-14d.jpg · Wikimedia Commons · See Wikimedia Commons
سدنا
Sign in to saveAlso known as (90377) 2003 VB12, (90377) Sedna 2003, 90377 Sedna, Sedna (dwarf planet)
یک ریزسیارهٔ بزرگ
AI overview
Sedna is a dwarf planet located in the far reaches of our Solar System, beyond the orbits of Neptune and Pluto. Scientists study it because its distant and unusual orbit provides clues about the structure and history of the outer Solar System.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Instance of
- detached object
- Named after
- Sedna
- Follows
- 90376 Kossuth
- Parent body
- Sun
- Minor-planet group
- trans-Neptunian object
- Diameter
- 1025
- Orbital period
- 4705404.650143452
- Image
- Sedna PRC2004-14d.jpg
Show 23 more facts
- Commons category
- 90377 Sedna
- discoverer or inventor
- David L. Rabinowitz
- provisional designation
- 2003 VB12
- time of discovery or invention
- 2003-11-14
- site of astronomical discovery
- Palomar Observatory
- orbital inclination
- 11.92591698495942
- Commons gallery
- 90377 Sedna
- albedo
- 0.07
- absolute magnitude
- 1.49
- mean anomaly
- 358.6072551587332
- argument of periapsis
- 311.0099164178038
- temperature
- 12
- color index
- 0.78
- longitude of ascending node
- 144.4786863232386
- semi-major axis of an orbit
- 549.5396510704963
- apparent magnitude
- 21.12
- Unicode character
- ⯲
- rotation period
- 10.273
- orbital eccentricity
- 0.8612973329749037
- periapsis
- 76.22261523951863
- apoapsis
- 1022.856686901474
- time of periapsis
- 2479204.466812667
- epoch
- November 21, 2025
Sources (10)
via Wikidata · CC0
Gallery (6)
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