Sedna Research Paper

Sedna- Formally known as 90377 Sedna is a large minor planet. It is in the far reaches of the solar system. It was discovered 11/14/2003. It's Aphelion (the far extreme of it's orbit) is a jaw dropping 937AU, or 87,099,591,409 miles, from the sun. It is made up of Water, Methane, and Nitrogen ices. It's orbit is insanely long, the last time Sedna was in the same place in it's orbit as it is now, the New Stone Age was just beginning. It is a member of the inner oort cloud as well. It was Discovered by Michael Brown, Chad Trujillo, and David Rabinowitz.

Sedna was about 8.4 billion miles away from the sun when it was discovered in 2003 by three american astronomers, mike brown, chad trujillo, and david rainbowitz, who were searching for kuiper belt objects. Sedna has an orbit similar to an oort cloud comet, but 10 times smaller. …show more content…
It must have been formed closer to the sun and then thrown out by a passing planet. Sedna is the second reddest Body in the solar system, after mars. With a surface temperature of -400F It is extremely cold. The hubble space telescope indicated that sedna had no moon. Initial observations showed that sedna's brightness varied every 20 days. If this is due to sedna's rotation, it would be the third slowest spinner in the solar system. A retreating moon would explain this, but no moon has been found thus far. The mystery is yet to be solved. ---------- When it was discovered on november 14, 2003 sedna was nearly 90 times further from the sun than earth, making it the most distant solar system object to be observed. ------ it takes approximately 11,400 years for sedna to