View source for NGC 3370

{{short description|Galaxy in the constellation Leo}}
{{Infobox galaxy
 | name             = NGC 3370
 | image            = NGC 3370 Hi.jpg
 | caption          = NGC 3370 imaged by the [[Hubble Space Telescope]].<br/>Credit: [[NASA]]/[[ESA]]
 | alt              = <!-- alternative description when image is not visible -->
 | epoch            = [[J2000]]
 | constellation name = [[Leo (constellation)|Leo]]
 | ra               = {{RA|10|47|04.0}}<ref name="ned" />
 | dec              = {{DEC|+17|16|25}}<ref name="ned" />
 | z                = <!-- Redshift -->
 | h_radial_v       = 1279 ± 4 km/[[second|s]]<ref name="ned" /> <!-- Heliocentric radial velocity (in km/s) {{val|####|##|u=km/s|fmt=commas}} -->
 | gal_v            = <!--Galactocentric velocity (in km/s) -->
 | dist_pc          = {{cvt|25.2|+/-|1.8|Mpc|Mly|sigfig=4|abbr=on|lk=on|order=flip}}{{hub|0.6774}} <!-- comoving distance -->
 | dist_ly          = {{cvt|78|Mly|Mpc|sigfig=4|abbr=on|lk=on}}{{hub|0.6774}}<br/>(''[[Light-travel distance|Light-travel]]'')
 | group_cluster    = [[NGC 3370 Group]]
 | type             =  SA(s)c<ref name="ned">{{cite web
  | title=NASA/IPAC Extragalactic Database
  | work=Results for NGC 3370
  | url=http://nedwww.ipac.caltech.edu/
  | access-date=2006-11-25 }}</ref> III{{Citation needed|date=February 2007}}
 | mass             = <!-- In solar masses {{Val|0|e=0}} -->
 | mass_light_ratio = <!-- In solar units  -->
 | size             = {{cvt|15.31|to|23.69|kpc|ly|sigfig=4|abbr=on|lk=on|disp=x|<br /><small>(|)</small>|order=flip}}<br />(''[[Galaxy#Isophotal diameter|diameter]]; [[2MASS]] K-band total and ''D''<sub>25.0</sub> B-band isophotes'')<ref name=ned/>
 | stars            = <!-- Estimate of the number of stars -->
 | appmag_v         = 12.3<ref name="ned" />
 | appmag_b         = <!-- Apparent magnitude in B band -->
 | absmag_v         = <!-- Absolute magnitude in V Band -->
 | size_v           = {{val|3.2|x|1.8|ul=arcminute}}<ref name="ned" />
 | half_light_radius_pc        = <!-- physical dimension, pc preferred -->
 | half_light_radius_arcminsec = <!-- apparent dimension -->
 | h1_scale_length_pc          = <!-- physical dimension, pc preferred -->
 | h1_scale_length_arcminsec   = <!-- apparent dimension -->
 | xray_radius_pc              = <!-- physical dimension, pc preferred -->
 | xray_radius_arcminsec       = <!-- apparent dimension -->
 | notes            = Dusty
 | names            = {{odlist | IRAS= 10444+1732 | MCG= +03-28-008 | CGCG= 095-019 | PGC=32207 | UGC=5887 | name= Silverado Galaxy{{Citation needed|date=February 2007}} }} <!--Other catalog designations-->
 | references       = <!-- Use inline references where available -->
}}

'''NGC 3370''' (also known as '''UGC 5887''' or '''Silverado Galaxy'''<ref name="cosmos">
 {{cite book
  | last = Sparrow
  | first = Giles
  | author-link = Giles Sparrow
  | title = Cosmos
  | publisher = [[Booksales]]
  | year = 2006
  | isbn = 978-1-905204-29-8
}}
</ref>)  is a [[spiral galaxy]] about {{convert|25.2|+/-|1.8|Mpc|e6ly|abbr=off|lk=on|order=flip}} away in the [[constellation]] [[Leo (constellation)|Leo]]. It is nearly comparable to our [[Milky Way]] both in diameter with a ''D''<sub>25</sub> isophotal size about {{convert|23.69|kpc|ly|abbr=on|order=flip}} comparing to the Milky Way Galaxy's {{convert|26.8|kpc|ly|abbr=on|order=flip|sigfig=3}} diameter, and as well as in mass ({{val|e=11|u={{solar mass|link=y}}}}).{{cn|date=September 2023}}  NGC 3370 exhibits an intricate spiral arm structure surrounding a poorly defined nucleus. It is a member of the [[NGC 3370 Group]] of galaxies, which is a member of the [[Leo II Groups]], a series of galaxies and [[galaxy cluster]]s strung out from the right edge of the [[Virgo Supercluster]].<ref name="atlas universe">{{cite web | title=The Leo III Groups |work=Atlas of the Universe |url=http://www.atlasoftheuniverse.com/galgrps/leoii.html |access-date=2010-11-27 |archive-date=July 22, 2012 |archive-url=https://archive.today/20120722223749/http://www.atlasoftheuniverse.com/galgrps/leoii.html |url-status=live }}</ref>

==History==
[[File:NGC 3370HSTGround.jpg|thumbnail|left|1994 image on the left shows supernova SN 1994ae. No longer visible in 2003 when [[Hubble Space Telescope]] imaged the galaxy.]]
NGC 3370 was likely discovered by [[William Herschel]], who provided it with the designation '''II 81'''.<ref name="Herschel 2500">[http://messier.seds.org/xtra/similar/h2500a.txt William Herschel's Deepsky Objects (The Herschel 2500 list)]</ref> His son [[John Herschel|John]] later designated it 750. William Herschel cataloged '''I 80''' to [[NGC 3348]]<ref name="Herschel 2500" /> before and '''II 82''' to [[NGC 3455]] after NGC 3370.<ref name="Herschel 2500" />

The object has a surface brightness of 13 and a position angle (PA) of 140°.

On November 14, 1994, S. Van Dyk and the [[Leuschner Observatory]] Supernova Search discovered a [[supernova]] in NGC 3370 at 10<sup>h</sup> 44<sup>m</sup> 21.52<sup>s</sup> +17° 32{{prime}} 20.7{{pprime}}, designated [[SN 1994ae]].<ref name="heritage">[http://heritage.stsci.edu/2003/24/supplemental.html A Look at NGC 3370 in Detail]</ref> SN 1994ae was a [[Supernova#Type I|type Ia]] supernova, and one of the nearest and best observed since the advent of modern digital detectors.<ref name=Composition>{{cite web|title=Celestial Composition|url=http://www.spacetelescope.org/images/opo0324a/|website=Hubble Space Telescope|publisher=ESA/Hubble|access-date=6 July 2015|archive-url=https://web.archive.org/web/20150706053711/http://www.spacetelescope.org/images/opo0324a/|archive-date=6 July 2015|url-status=dead}}</ref> The maximal light of the supernova was estimated to have occurred between November 30 and December 1,<ref>{{cite journal | bibcode=1994IAUC.6111....2P| title=Supernova 1994ae in NGC 3370| last1=Patat| first1=F.| last2=Vician| first2=Z.| last3=Szentasko| first3=L.| journal=International Astronomical Union Circular| date=1994| issue=6111| page=2}}</ref> peaking at [[visual magnitude]] 13.<ref name="heritage" />

== See also ==
* [[NGC 1365]], spiral galaxy
* [[List of NGC objects (3001–4000)]]

==References==
{{reflist}}

== External links ==
{{commonscat}}
* [http://hubblesite.org/newscenter/newsdesk/archive/releases/2003/24 HST: Celestial Composition]
* [https://www.jstor.org/stable/10.1086/323970 Ho et al., BVRI Photometry of Supernovae]
*[http://www.spacetelescope.org/images/archive/freesearch/3370/viewall/1 NGC 3370 at ESA/Hubble]
*{{APOD |date=12 October 2008 |title=Spiral Galaxy NGC 3370 from Hubble}}


{{Ngc35}}
{{Catalogs|NGC=3370}}
{{Leo (constellation)}}

[[Category:Unbarred spiral galaxies]]
[[Category:Leo (constellation)]]
[[Category:NGC objects|3370]]
[[Category:UGC objects|05887]]
[[Category:Principal Galaxies Catalogue objects|032207]]
[[Category:Astronomical objects discovered in 1784|17840321]]
[[Category:MCG objects|+03-28-008]]
[[Category:IRAS catalogue objects|10444+1732]]
[[Category:Discoveries by William Herschel]]