NGC 740
{{Short description|Galaxy in the constellation Triangulum}}
{{Infobox galaxy
| name = NGC 740
| image = NGC740 - SDSS DR14.jpg
| image_size =
| upright =
| caption = NGC 740 imaged by the Sloan Digital Sky Survey
| alt =
| epoch = J2000
| pronounce =
| constellation name = Triangulum
| z =
| h_radial_v = 4,518 km/s
| gal_v =
| dist_pc =
| dist_ly = {{cvt|60.98|Mpc|Mly|order=flip|lk=on}}
| group_cluster =
| mass_light_ratio =
| size = {{cvt|0.35|Mpc|kly|disp=out}}
| stars =
| appmag_v =
| appmag_b = 14.9
| absmag_v =
| size_v = {{nowrap|1.017′ × 0.264′}}
| half_light_radius_pc =
| half_light_radius_arcminsec =
| h1_scale_length_pc =
| h1_scale_length_arcminsec =
| xray_radius_pc =
| xray_radius_arcminsec =
| notes =
| references =
| names = {{odlist|UGC=1421|MCG=+05-05-031|PGC=7316}}
}}
NGC 740 is a barred spiral galaxy located in the Triangulum constellation. It is estimated to be 210 million light-years from the Milky Way and has a diameter of about 85,000 light-years. It was discovered by the Irish engineer Bindon Stoney, an assistant to William Parsons.
References
{{reflist|refs=
{{cite simbad | title=NGC 740 | access-date=2020-01-13 }}
| last1=Crook | first1=Aidan C. | last2=Huchra | first2=John P.
| last3=Martimbeau | first3=Nathalie | last4=Masters | first4=Karen L.
| last5=Jarrett | first5=Tom | last6=Macri | first6=Lucas M.
| title=Groups of Galaxies in the Two Micron All Sky Redshift Survey
| display-authors=1 | journal=The Astrophysical Journal
| volume=655 | issue=2 | pages=790–813 | date=February 2007
| doi=10.1086/510201 | arxiv=astro-ph/0610732
| bibcode=2007ApJ...655..790C | s2cid=11672751 }}
| last1=de Vaucouleurs | first1=G. | last2=de Vaucouleurs | first2=A.
| last3=Corwin | first3=H. G. Jr. | last4=Buta | first4=R. J.
| last5=Paturel | first5=G. | last6=Fouque | first6=P.
| title=Third reference catalogue of bright galaxies
| version=3.9 | display-authors=1 | date=1991
| publisher=Springer-Verlag | location=New York }}
}}
External links
- {{commons category-inline}}
{{Stars of Triangulum}}
{{Ngc10}}
{{DEFAULTSORT:NGC 740}}
Category:Barred spiral galaxies
{{Spiral-galaxy-stub}}