| 词条 | IC 5148 |
| 释义 |
| image = |caption = IC 5148, nicknamed the Spare Tyre Nebula, taken by the ESO Faint Object Spectrograph and Camera (EFOSC2) on the New Technology Telescope.[1] | name = IC 5148 | type = Planetary Nebula | epoch = J2000 | ra = {{RA|21|59|35.2}}[2] | dec = {{DEC|-39|23|08}}[2] | dist_ly = 3000 light years[1] | appmag_v = 16.5[2] | size_v = 2 ′ x 2 ′[2] | constellation = Grus | radius_ly = | absmag_v = | notes = | names = IC 5150, PK 002-52 1, PSCz P21565-3937, ESO 344-5, IRAS 21565-3937, PN G002.7-52.4 }} Nicknamed the Spare-tyre nebula,[3] IC 5148 is a planetary nebula located around 1 degree west of Lambda Gruis in the constellation of Grus (The Crane).[4] It was discovered by Australian amateur astronomer Walter Gale in 1894. Around 3000 light-years distant, it is expanding at a rate of 50 kilometres a second, one of the fastest of all planetary nebulae.[3] References1. ^1 {{cite web|title=From Cosmic Spare Tyre to Ethereal Blossom|url=http://www.eso.org/public/images/potw1242a/|work=Picture of the Week|publisher=European Southern Observatory|accessdate=15 October 2012}} {{Catalogs|IC=5148}}{{nebula-stub}}2. ^1 2 3 {{cite web|title=Search Results for IC 5148|url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=IC+5148|work=Astronomical Database|publisher=SIMBAD|accessdate=15 October 2012}} 3. ^1 {{cite web|url=http://www.eso.org/public/images/potw1242a/|title=From Cosmic Spare Tyre to Ethereal Blossom|last=ESO|year=2012|work=Picture of the Week|publisher=European Southern Observatory|accessdate=6 February 2014}} 4. ^{{cite web | last = Streicher | first = Magda | date = December 2010 | title = Grus—An Elegant Starry Bird | publisher = The Astronomical Society of Southern Africa | work = Deepsky Delights | url =http://www.mnassa.org.za/html/Dec2010/2010MNASSA..69..Dec..229.pdf |pages = 56–59 | accessdate = 7 February 2014}} 3 : IC objects|Planetary nebulae|Grus (constellation) |
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