Sednaとは 意味・読み方・使い方

語源

Borrowed from Inuktitut ᓴᓐᓇ (sanna, “Inuit goddess, Mother of the Sea”).

The dwarf planet and the planitia are named after the goddess.

発音

固有名詞

Sedna

1. (mythology, Inuit mythology) The Inuit goddess of the sea and marine animals.
   • 2018, Tanya Tagaq, Split Tooth, And Other Stories (2023), page 87:

     Sedna began to enjoy keeping all the sea creatures away from the humans by tucking them into her now miles-long hair.

2. (astronomy) a dwarf planet whose eccentric detached orbit is wholly beyond the Kuiper belt.

   Synonyms: 90377 Sedna, 90377, 2003 VB12, 2003 VB12 Sedna, 90377 2003 VB12, 90337 (2003 VB12) Sedna

   • 2007, C. Murray, David Brodie, Ice, Rock, and Beauty: A Visual Tour of the New Solar System, page 32:

     Scattered beyond the Kuiper Belt is a disk of objects such as Eris and Sedna.

   • 2009, Alan Boyle, The Case for Pluto: How a Little Planet Made a Big Difference‎, page 106:

     Brown clicked on a button to have the computer calculate just how far away the object was, and came up with a distance farther than Pluto, even farther than Sedna: about 97 AU. Then he ran some quick calculations to estimate how big the object was, assuming that it was as reflective as Sedna.

   • 2010, Rodney S. Gomes, Jean S. Soares, Sedna, 2004 VN112 and 2000 CR105: the tip of an iceberg, Julio A. Fernández, Daniela Lazzaro, Dina Prialnik, Rita Schulz (editors), Icy Bodies of the Solar System: Proceedings of the 263rd Symposium of the International Astronomical Union (IAU S263), page 67,

     We review two main scenarios that may have implanted Sedna, 2004 VN112 and 2000 CR105 on their current peculiar orbits.

3. (astronomy) Ellipsis of Sedna Planitia: a plain on the planet of Venus

同意語

• (astronomy, astrology): ⯲

派生語

参考

• (most likely dwarf planets of the Solar System) Ceres, Orcus, Pluto, Haumea, Quaoar, Makemake, Gonggong, Eris, Sedna

参照

Further reading

• Sedna (mythology) on Wikipedia.Wikipedia
• Sedna (dwarf planet) on Wikipedia.Wikipedia

アナグラム

• Sedan, Desna, snead, Snead, Sande, Deans, deans, nades, sedan, Adens, DNase, Denas, saden, Danes, Neads, Andes