单词sedna
网络: 塞德娜；赛德娜；赛德纳
For most of its orbit Sedna is farther from the Sun than any other known dwarf planet candidate.
对于它的轨道塞德娜是远离太阳比任何其他已知的矮行星候选。
A recently-discovered dwarf planet, named Sedna, has an extra-long and usual elliptical orbit around the Sun.
一颗近期被发现的褐矮星“赛德娜”（Sedna）有一个超长的椭圆形的绕太阳的轨道。
He also suggested that such an object might also explain the trans-Neptunian object Sedna"s peculiar orbit.
他认为，这样的一颗天体也许还能够解释外海王星天体赛德娜的奇特轨道。
Astronomers examining Hubble Space Telescope images of distant Sedna say the planetoid is even more mysterious than they first thought.
仔细查看了哈勃太空望远镜发回的远行星Sedna的照片后，天文学家们说，这颗小行星比他们最初想象的更神秘。
And if so, why not Quaoar and Sedna, and several other worlds, which were smaller than Pluto, but not by much?
而且如果这样的话，为什么夸欧尔、塞德娜及其它星体不是呢？它们比冥王星小些，但没小那多。
The Inuit Legend of Sedna the Sea Goddess
因纽特族人大海女神塞德娜的传说