| 词条 | NGC 7 |
| 释义 |
| name = NGC 7 | image = NGC 7 ESO-LV 4090220 I R B.png | caption = NGC 7 | credit = | epoch = | constellation name = Sculptor | ra = {{RA|00|08|20.9}} | dec = {{DEC|-29|54|54}} | z = 0.004987[1] | h_radial_v = {{nowrap|1495 ± 2 km/s}}[1] | dist_ly = 71.4 ± 5.2 Mly {{nowrap|(21.9 ± 1.6 Mpc)}}[2] | type = Spiral, possibly barred[4] edge-on?[1] | appmag_v = 13.5[1] | size_v = 2.2' x 0.5'[1] | notes = | names = MCG-05-01-037, ESO 409-G022, AM 0005-301, PGC 627, h 4014, GC 2[3] |absmag_v=-17.83[4] }}NGC 7 is a spiral galaxy located in the Sculptor constellation. It was discovered by English astronomer John Herschel in 1834, who was using an 18.7 inch reflector telescope at the time.[3] Astronomer Steve Gottlieb described the galaxy as faint, albeit large, and edge-on from the perspective of the Milky Way; he also noted how the galaxy could only be observed clearly with the peripheral vision, not by looking directly at it.[3] GalleryReferences1. ^1 2 3 4 {{cite web |title=NASA/IPAC Extragalactic Database |work=Results for NGC 0007 |url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+7&img_stamp=yes&extend=no |accessdate=2010-05-03}} 2. ^{{cite web |title=Distance Results for NGC 0007 |work=NASA/IPAC Extragalactic Database |url=http://nedwww.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+0007 |accessdate=2010-05-03}} 3. ^1 2 3 {{cite web |url=http://www.ngcic.org/dss/dss_n0001.asp |archive-url=https://archive.is/20070926235842/http://www.ngcic.org/dss/dss_n0001.asp |dead-url=yes |archive-date=26 September 2007 |title=DSS Images for NGC 000 thru NGC 099 |accessdate=25 November 2008 |work=NGC/IC Project |publisher=Association of Universities for Research in Astronomy, Inc. |date= }} 4. ^ https://in-the-sky.org/data/object.php?id=NGC7 External links{{Commons category}}
4 : Galaxies discovered in 1834|NGC objects|Astronomical objects discovered in 1834|Discoveries by John Herschel |
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