Emission nebula
|
A diffuse nebula is one in which ionized gas emits light. It is often excited by ultraviolet light from a nearby hot star. When excited by a young, massive star, it is called an H II region, and when excited by a white dwarf, it is called a planetary nebula. Source: About Shogakukan Digital Daijisen Information | Legend |
|
散光星雲のうち、電離したガスが光を放射する星雲。近傍にある高温の星からの紫外線によって励起される場合が多く、若い大質量星による場合はHⅡ領域、白色矮星の場合は惑星状星雲と呼ばれる。
出典 小学館デジタル大辞泉について 情報 | 凡例 |
Recommend
Almak - Almak
…Beta Sirak (Loincloth) is a red giant with a mag...
Iqta (English spelling) iqtā`
An Arabic word meaning the right to collect taxes,...
Greek War of Independence - Elliniki Epanastasis (Greek)
A war (1821-1829) that gave independence to Greec...
inverted echo sounder
...A sonic wave gauge is installed on the ocean f...
Atssaisen - Atssaisen
…During this time, firecrackers are set off and h...
Lourenço Marques
...Population: 932,000 (1991). Formerly known as ...
Karaki - Touboku
Also called "karaki." It refers to hard ...
Onyo Onsen - Onyo Onsen
This hot spring is located in the west of Cheonan ...
North Sea Fisheries
A general term for fishing in the North Sea, incl...
Itsuki [Village] - Itsuki
This village is located in the Kyushu mountains, u...
Weighted moving average method
...Once the September results are known, June is ...
Tyr (English spelling)
...According to Gylfaginning in Snorri Sturluson&...
Loriculus vernalis (English spelling)
… [Takashi Saito]. . . *Some of the terminology t...
Yubari Mountains - Yubarisanchi
This mountain range, together with the Hidaka Mou...
Hoei Gold and Silver
Coins minted from 1706 to 1711 (3rd to 8th years o...