Sedna

Sedna

Sedna Statistics Designation: 90377 Sedna Alternate name: 2003 VB12 Minor planet category: Trans-Neptunian detached object Physical characteristics Dimensions; 1,200.1,600 km 1,600 km Mass; 8.3 W 1020.7.0 W 1021 kg[5] (0.05.0.42 Eris) Mean density' 2.0? g/cm3 Equatorial surface gravity' 0.33.0.50 m/s2 Escape velocity' 0.62.0.95 km/s Sidereal rotation period; 0.42 d (10 h) 1 Albedo; 0.16.0.30[3] Temperature below; 33 K Spectral type; (red) B-V=1.24; V-R=0.78 [6] Apparent magnitude; 21.1[7] 20.4 (Perihelic)[8] Absolute magnitude; 1.56[9] Discovered by M. Brown, C. Trujillo, D. Rabinowitz Discovery date November 14, 2003Discovered by M. Brown, C. Trujillo, D. Rabinowitz Discovery date November 14, 2003

Sedna is the second most reddish planetary body in the Solar System, after Mars. Although inclined by only around 11.9 degrees from the ecliptic where the eight major planets orbit, Sedna's distant orbit is extremely elliptical indicating that its formation and orbit may have been influenced by by a passing nearby star during the early years of the Solar System, when Sol formed out of a molecular cloud with many other closeby stars around 4.6 billion years ago. There is indirect evidence (an unexpectedly slow 40-day rotation) that Sedna has its own moon, which astronomers hope to confirm with the Hubble Space Telescope (more information and images from NASA. The icy object will move closer to the Sun over the next 72 years -- to 76 AUs of Sol -- before receding back towards the inner Oort Cloud.

Planetary Orbit Of Sedna

Orbital characteristics

Although Sedna has an extremely large orbit around the Sun, it appears to move well within the hypothesized location of the inner Oort Cloud,

Sedna Mythology

Soon her father saw another hunter approaching their camp. The man was dressed elegantly in furs and appeared to be well-to-do even though his face was hidden. Sedna's father spoke to the man. "If you wish to seek a wife I have a beautiful daughter . She can cook and sew and I know she will make a good wife." Under great protest, Sedna was placed aboard of the hunters kayak and journeyed to her new home. Soon they arrived at an island. Sedna looked around. She could see nothing. No sod hut, no tent, just bare rocks and a cliff. The hunter stood before Sedna and as he pulled down his hood, he let out and evil laugh. Sedna's husband was not a man as she had thought but a raven in disguise. She screamed and tried to run, but the bird dragged her to a clearing on the cliff. Sedna's new home was a few tufts of animal hair and feathers strewn about on the hard, cold rock. The only food she had to eat was fish. Her husband, the raven, brought raw fish to her after a day of flying off in search of food.

Sedna was very unhappy and miserable. She cried and cried and called her father's name. Through the howling arctic winds Sedna's father could hear his daughter's cries. He felt guilty for what he had done as he knew she was sad. Sedna's father decided it was time to rescue his daughter. He loaded up his kayak and paddled for days through the frigid arctic waters to his Sedna's home. When he arrived Sedna was standing on the shore. Sedna hugged her father then quickly climbed into his kayak and paddled away. After many hours of travel Sedna turned and saw a black speck far off into the distance. She felt the fear well up inside of her for she knew the speck was her angry husband flying in search of her.

Sedna screamed and struggled as her body began go numb in the icy arctic waters. She swam to the kayak and reached up, her fingers grasping the side of the boat. Her father, terrified by the raging storm, thought only of himself as he grabbed the paddle and began to pound against Sedna's fingers. Sedna screamed for her father to stop but to no avail. Her frozen fingers cracked and fell into the ocean. Affected by her ghastly husbands powers, Sedna's fingers while sinking to the bottom, turned into seals. Sedna attempted again to swim and cling to her father's kayak. Again he grabbed the paddle and began beating at her hands. Again Sedna's hands, frozen by the arctic sea again cracked off. The stumps began to drift to the bottom of the sea, this time turned into the whales and other large mammals. Sedna could fight no more and began to sink herself.

Sedna, tourmented and raging with anger for what had happened to her, did not perish. She became, and still is today, the goddess of the sea. Sedna's companions are the seals, and the whales that sit with her at the bottom on the ocean. Her anger and fury against man is what drums up the violent seas and storms . Hunters have a great respect for her. Legend has it that they must treat her with respect. Shaman's from the world above must swim down to her to comb her long black tangled hair. This calms Sedna down. Once this is done, she releases her mammals to allow the Inuit to eat from the bounty of the sea. It is for this reason in the north that after a hunter catches a seal he drops water into the mouth of the mammal, a gesture to thank Sedna for her kindness in allowing him to feed his family.