https://arolstar52-zhtest.hf.space/index.php?action=history&feed=atom&title=NGC_1981 NGC 1981 - 版本历史 2026-07-16T03:29:08Z 在这个wiki上该页的修订历史 MediaWiki 1.43.9 https://arolstar52-zhtest.hf.space/index.php?title=NGC_1981&diff=155039&oldid=prev imported>50829!：​移除short description 2022-07-04T06:51:33Z <p>移除short description</p> <p><b>新页面</b></p><div>{{Infobox open cluster <br /> | name = NGC 1981<br /> | image = M42 HaRGB Composite Feb 2012 P.jpg<br /> | caption = NGC 1981是[[獵戶座大星雲]]區域頂部（北部）沒有雲氣，只有稀疏的明亮星光散射的[[疏散星團]]<br /> | credit =大衛·聖路易士（David St. Louis）<br /> | epoch = [[J2000.0]]<br /> | constellation = [[獵戶座]]<br /> | ra = {{RA|05|35|09.6}}&lt;ref name=&quot;NGC 1981&quot;&gt;{{cite web|url=http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+1981|title=NED results for object NGC 1981 *|work=NED|access-date=27 November 2017|archive-date=2019-12-07|archive-url=https://web.archive.org/web/20191207165332/http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+1981}}&lt;/ref&gt;<br /> | dec = {{DEC|-04|25|30}}&lt;ref name=&quot;NGC 1981&quot;/&gt;<br /> | appmag_v = 4.2&lt;ref name=&quot;NGC 1981 - Appmag&quot;&gt;{{cite web|url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+1981|title=NGC 1981 -- Open (galactic) Cluster|work=SIMBAD|access-date=27 November 2017|archive-date=2021-12-03|archive-url=https://web.archive.org/web/20211203160905/http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+1981}}&lt;/ref&gt;<br /> | dist_ly = 1,300&lt;ref name=&quot;NGC 1991 - Distance&quot;&gt;{{cite web|url=http://eyesonthesky.com/Blog/tabid/80/EntryId/175/NGC1981-The-often-overlooked-open-cluster-in-Orion.aspx|title=NGC1981: The often-overlooked open cluster in Orion|work=Eye on the sky|date=December 22, 2013|access-date=27 November 2017|archive-date=2017-12-06|archive-url=https://web.archive.org/web/20171206205527/http://eyesonthesky.com/Blog/tabid/80/EntryId/175/NGC1981-The-often-overlooked-open-cluster-in-Orion.aspx}}&lt;/ref&gt;<br /> | dist_pc = 400&lt;ref name=&quot;NGC 1991 - Distance&quot;/&gt;<br /> | size_v = 28.00&lt;ref name=&quot;NGC 1983 - Arcmin&quot;&gt;{{cite web|url=http://spider.seds.org/ngc/revngcic.cgi?NGC1981|title=Object: NGC 1981 (*)|work=SEDS|access-date=27 November 2017|archive-date=2015-09-19|archive-url=https://web.archive.org/web/20150919110957/http://spider.seds.org/ngc/revngcic.cgi?NGC1981}}&lt;/ref&gt;<br /> | age =<br /> | names = OCL 525, Collinder 73&lt;ref&gt;{{cite web|url=https://in-the-sky.org/data/object.php?id=NGC1981|title=The open cluster NGC 1981|work=In the Sky|access-date=27 November 2017|archive-date=2017-12-01|archive-url=https://web.archive.org/web/20171201041804/https://in-the-sky.org/data/object.php?id=NGC1981}}&lt;/ref&gt;<br /> }}<br /> <br /> &#039;&#039;&#039;NGC 1981&#039;&#039;&#039;（也稱為&#039;&#039;&#039;OCL 525&#039;&#039;&#039;）是位於[[獵戶座]]的一個[[疏散星團]]。它是[[約翰·赫歇爾]]於1827年1月4日發現的。它的[[視星等]]為4.2等&lt;ref name=&quot;NGC 1981 - Appmag&quot;/&gt;，大小是28[[弧分]]。它位於[[獵戶座大星雲]]的北部，隔開它與M43的是包含於 [[Sh2-279]]區域的NGC 1973，1975和1977。<br /> <br /> 有人說它看起來像鱷魚，就是鱷魚，它東邊的星是鼻子，西邊的星是尾巴，中間的兩組各三顆星是它的兩組腿&lt;ref&gt;{{cite web|url=http://www.skyandtelescope.com/observing/overlooked-wonders-in-orions-shadow02102016/|title=Overlooked Wonders In Orion&#039;s Shadow|work=Sky and Telescope|date=February 10, 2016|access-date=27 November 2017|archive-date=2017-12-01|archive-url=https://web.archive.org/web/20171201040706/http://www.skyandtelescope.com/observing/overlooked-wonders-in-orions-shadow02102016/}}&lt;/ref&gt;。<br /> <br /> == 參考資料 ==<br /> {{reflist}}<br /> <br /> == 外部連結 ==<br /> * {{commonscat-inline}}<br /> <br /> <br /> {{NGC20}}<br /> <br /> [[Category:疏散星團]]<br /> [[Category:獵戶座分子雲複合體]]<br /> [[Category:NGC天體|1981]]<br /> [[Category:獵戶座]]<br /> [[Category:1827年發現的天體]]<br /> [[Category:約翰·赫歇爾發現的天體]]<br /> [[Category:獵戶臂]]</div> imported>50829!