California Nebula - Wikipedia
网页The California Nebula (Also known NGC 1499 or Sh2 -220) is an emission nebula located in the constellation Perseus. Its name comes from its resemblance to the outline of the US State of California in long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to ...
NGC 1499 - 维基百科，自由的百科全书
网页NGC 1499 俗稱 加利福尼亞星雲 或 加州星雲 （California Nebula），是位於 英仙座 的 發射星雲，距離地球約1,000光年，最初在1884年由 美國 天文學家 巴納德 發現。 它的名稱來自它酷似 美國 加利福尼亞州 的輪廓。 加利福尼亞星雲的視直徑可達2.5°，但由於從望遠鏡觀測得的 表面亮度 非常低（約14等左右 [ 2 ]），所以很難以裸眼進行目視觀測，宜使用廣視野望遠鏡，配合Hβ濾鏡（波長486奈米），在低光害的夜空環境下拍攝。 參考來源. [编辑] ^ …
APOD: 2021 March 10 - NGC 1499: The California Nebula
网页Our Sun has its home within the Milky Way's Orion Arm, only about 1,000 light-years from the California Nebula. Also known as NGC 1499, the classic emission nebula is around 100 light-year s long. On the featured image, the most prominent glow of the California Nebula is the red light characteristic of hydrogen atoms recombining with long lost ...
NGC 1499 - 百度百科
网页NGC 1499俗称加利福尼亚星云或加州星云（California Nebula），是位于英仙座的发射星云，距离地球约1,000光年，最初在1884年由美国天文学家巴纳德发现。. 它的名称来自它酷似美国加利福尼亚州的轮廓。. 加利福尼亚星云的视直径可达2.5°，但由于从望远镜观测得的 ...
APOD: 2019 August 23 - NGC 1499: The California Nebula
网页Also known as NGC 1499, the classic emission nebula is around 100 light-years long. The California Nebula shines with the telltale reddish glow characteristic of hydrogen atoms recombining with long lost electrons. The electrons have been stripped away, ionized by energetic starlight.
NGC 1499 (California Nebula) - Nebula in Perseus - TheSkyLive
网页NGC 1499 is a Nebula in the Perseus constellation. NGC 1499 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its B magnitude of 5, NGC 1499 is barely visible to the naked eye, easily visible with the help of a small binocular.
NGC 1499：加州星云 – NASA中文
网页2019年8月24日 · Also known as NGC 1499, the classic emission nebula is around 100 light-years long. The California Nebula shines with the telltale reddish glow characteristic of hydrogen atoms recombining with long lost electrons. The electrons have been stripped away, ionized by energetic starlight.
California Nebula (NGC 1499) - Deep⋆Sky Corner
网页The galactic emission nebula NGC 1499 was discovered on 3 November 1885 by American astronomer Edward Emerson Barnard. It received the nickname because it is similar in shape to the US state of California. [196] Physical Properties. With a surface area of around 2.5 ° x 1 °, the nebula is very large, but has a low surface brightness.
NGC1499 - The California Nebula - Atlas of The Universe
网页NGC1499 - The California Nebula. Discovered by Edward Barnard in 1885, the California nebula is a large and relatively close nebula in the Orion Arm of our Galaxy. The nebula glows because of the radiation from the intensely hot, class O star, Xi Persei which is the brightest star in this picture.
NGC 1499, The California nebula (Timothy Prospero) - AstroBin
网页Appearance and name: NGC 1499 is called the California Nebula because it resembles the shape of the US state of California. Its distinctive shape and vivid colours when photographed with long exposures. Distance and size: This nebula is …