Discovery of Sedna
Sedna is a dwarf planet in the outermost reaches of the Solar System, orbiting the Sun far beyond the orbit of Neptune. It was discovered in 2003, and is roughly 1,000 km in diameter.
Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)
Which happened first?
- Discovery of Sedna and Discovery of moscovium happened in the same year
- Discovery of Sedna and Discovery of (136108) Haumea happened in the same year
- Discovery of Sedna and Discovery of Eris happened in the same year
- Discovery of Sedna happened 1 year after Discovery of oganesson
- Discovery of Sedna happened 1 year before Discovery of 120347 Salacia
Timeline
- Discovery of oganessonJune 2002
- Discovery of (136108) HaumeaMarch 7, 2003
- Discovery of ErisOctober 21, 2003
- Discovery of moscoviumAugust 2003
- Discovery of Sedna (this page)November 14, 2003
- Discovery of 120347 SalaciaSeptember 22, 2004
