This nebula is located at the tip of the bull's horn in Taurus, and is the remains of a supernova. It was given the number 1 (M1) in the catalog of diffuse objects created by Messier in 1764, and in the NGC it was given the number 1 in 1952. Records from China and Japan show that in 1054 it shone brighter than Venus. It is 7000 light years away, and gas is scattering in all directions at a high speed of over 1000 km per second. Therefore, when comparing a photo taken in 1921 using the 1.5 m telescope on Mount Wilson with one taken 12 years earlier, it was discovered to have expanded by about 1 arc second. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
おうし座の牡牛の角の先にある星雲で,超新星の残骸である。1764年にメシエが作った拡散状天体のカタログで1番(M1)の番号が与えられ,NGCでは1952。1054年に金星より明るく輝いたことが,中国や日本の記録に見られる。7000光年のかなたにあって,毎秒1000km以上の高速でガスが四方八方に飛び散っている。そのため,1921年にウィルソン山の1.5m望遠鏡を使って撮った写真と12年前のものとを比べると,角度の1秒あまり膨張しているのが発見された。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
>>: Kaniṣka (English spelling)
Forests created by planting trees for the purpose...
...The leaves are used for roofing. The juice fro...
Order Lacertidae, Family Lacertidae. A relatively ...
⇒ Katsu Kaishu Source: Kodansha Digital Japanese N...
A butterfly belonging to the family Lycaenidae in...
…[Shiro Katsuya]. . . *Some of the terminology th...
It usually refers to a reaction in which an alkyl...
…The team can play again within the three shots a...
...The species with bright vermilion petals on th...
...Ordinary warehouses store ordinary goods such ...
...He published two books, "SD" (abbrev...
…Until the pre-Qin period, pit tombs were the nor...
…He was elected to the House of Representatives (...
...A type of Japanese music. An abbreviation of U...
A general term for insects belonging to the order ...