Sedna: New Mystery

Sedna Mystery Deepens as Hubble Offers Best Look at Farthest Planetoid

This is the clearest-ever view of the farthest object yet discovered in the solar system. The object is unofficially named "Sedna" (after an Inuit goddess of the sea). [Lower right] At a distance of over 8 billion miles, Sedna is so far away it is reduced to one picture element...

Plot of Planetoid Sedna's Apparent Motion through Space from 2003 to 2005

Parallax Shift Shows Planetoid Sedna is Part of Solar System

HST/ACS Co-added Image of Sedna - March 16, 2004

Long View from a Lonely Planet

This is an artist's impression of noontime on Sedna, the farthest known planetoid from the Sun. Over 8 billion miles away, the Sun is reduced to a brilliant pinpoint of light that is 100 times brighter than the full Moon. (The Sun would actually be the angular size of Saturn as...

Points of Interest in Artist's View of Sedna

Sedna: New Mystery

Zoom out from our Sun to the newly discovered celestial object Sedna. The artwork is a conception designed by Adolph Schaller. Sedna resides three times farther away from the Sun than the planet Pluto.