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The Large Magellanic Cloud is an irregular galaxy that orbits the Milky Way as one of its satellite galaxies. It matters to astronomers because studying it helps us understand how galaxies interact and evolve, and it serves as a nearby laboratory for observing stellar processes and cosmic phenomena.
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Wikidata facts
- Instance of
- galaxy
- Part of
- Milky Way subgroup
- Has part
- NGC 1866
- Named after
- Ferdinand Magellan
- Constellation
- Dorado
- Parent body
- Milky Way
- Distance from Earth
- 50.12
- Radius
- 2.1
- Mass
- 13000000000
- Image
- Large.mc.arp.750pix.jpg
Show 18 more facts
- Commons category
- Large Magellanic Cloud
- topic's main category
- Category:Large Magellanic Cloud
- catalog code
- 2FHL J0526.6-6825e
- redshift
- 0.00093
- galaxy morphological type
- SB(s)m
- apparent magnitude
- 0.4
- right ascension
- 80.89417
- declination
- -69.75611
- radial velocity
- 262.2
- epoch
- J2000.0
- discoverer or inventor
- Abd al-Rahman al-Sufi
- time of discovery or invention
- 0964-00-00
- metallicity
- -0.55
- absolute magnitude
- -18.5
- right ascension component of proper motion
- 1.910
- declination component of proper motion
- 0.229
- short name
- VMO
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
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Article · 中文
大麥哲倫星系又称大麦哲伦云(英語:Large Magellanic Cloud,簡寫為LMC),是銀河系的一个卫星星系,距離約為50,000秒差距(~160,000光年),直徑大約是銀河系的1/20,恆星數量約為1/10(大約是100億顆恆星)。虽然比大多數星系為大,但在讨论银河系的时候也会被当做矮星系。 大麦哲伦星系的形态类似不规则星系,但似乎有一些螺旋結構的痕跡。有些推測認為大麦哲伦星系以前是棒旋星系,受到銀河系的重力擾動才成為不規則星系,因此在中央仍保有短棒的結構。在中依據哈伯星系分類為Irr/SB(s)m。 大麦哲伦星系是本星系群中第四大的星系,其餘三個為第三大的三角座星系(M33)、第二大的銀河系及第一大的仙女座星系(M31)。 在南半球的夜空中,大麦哲伦星系是一個昏暗的天體,跨立在山案座和劍魚座兩個星座的邊界之間。它的名稱來自航海家斐迪南·麥哲倫,在他繞行地球一週的遠航中觀察了它與小麥哲倫星系(SMC)。(其實早在約西元964年,波斯天文学家阿布德·热哈曼·阿尔苏飞就已經在恆星之書(Book of Fixed Stars)中記錄了這兩個星系。
Abstract from DBpedia / Wikipedia · CC BY-SA
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