{{Short description|Galaxy in the constellation Draco}} {{Sky|15|28|0.7|+|64|45|48.00}} {{Infobox galaxy | name = [[New General Catalogue|NGC]] 5949 | image = Small but significant (36252859422).jpg | image_size = 300 | caption = A [[Hubble Space Telescope]] (HST) image of NGC 5949 | epoch = [[J2000]] | constellation name = [[Draco (constellation)|Draco]] | ra = {{RA|15|28|0.70}}<ref name="simbad">{{cite web|title=NGC 5949|url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+5949|website=simbad.u-strasbg.fr|access-date=7 August 2017}}</ref> | dec = {{DEC|64|45|48.0}}<ref name="simbad"/> | z = 0.001414±0.000073<ref name="simbad"/> | dist_ly = 44 [[light-year|Mly]] (13.49 M[[Parsec|pc]])<ref name="simbad"/> | type = SA(r)bc<ref name="simbad"/> | size = 30,000 ly (diameter)<ref name="simbad"/> | appmag_v =12.1<ref name="simbad"/> | size_v = 1.9 x .89{{citation needed|date=November 2017}} | notes =Bright hot blue stars make up most of the galaxy | names = LEDA 55165, SDSS J152800.67+644547.4, Z 319-16, IRAS F15273+6456, 2MASX J15280067+6445473, TC 847, Z 1527.4+6455, IRAS 15273+6456, MCG+11-19-008, UGC 9866, K73 682, PSCz Q15273+6456, UZC J152800.7+644547 }}
'''NGC 5949''' is a [[dwarf spiral galaxy]] located around 44 million [[Light-year|light-years]] away in the [[Draco (constellation)|constellation Draco]].<ref name=":0">{{Cite web|url=https://in-the-sky.org/data/catalogue.php?cat=NGC&const=35|title = The New General Catalogue (NGC) in Draco}}</ref><ref name=":3">{{Cite web |title=By Name {{!}} NASA/IPAC Extragalactic Database |url=https://ned.ipac.caltech.edu/byname?objname=NGC+5949&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1 |access-date=2024-04-03 |website=ned.ipac.caltech.edu}}</ref><ref name="hst"/> NGC 5949 was discovered in 1801 by [[William Herschel]], and it is 30,000 light-years across. NGC 5949 is not known to have an [[active galactic nucleus]], and it is not known for much [[Star formation|star-formation]].<ref name=":3" />
== Characteristics == With a mass of about a hundredth that of the [[Milky Way]], NGC 5949 is a relatively bulky example of a [[dwarf galaxy]]. Its classification as a dwarf is due to its relatively small number of constituent stars, but the galaxy’s loosely-bound spiral arms also place it in the category of [[Barred spiral galaxy|barred spirals]]. This structure is just visible in the Hubble Space Telescope (HST) image, which shows the galaxy as a bright yet ill-defined pinwheel. Despite its small proportions, NGC 5949’s proximity has meant that its light can be picked up by fairly small telescopes, as discovered by William Herschel.<ref name="hst">{{Cite web |last= ESA/Hubble & NASA |title=Small but significant |url=https://www.spacetelescope.org/images/potw1732a/ |date= 7 August 2017 |access-date=2024-04-03 |website=www.spacetelescope.org |language=en}}</ref>
Astronomers have run into several cosmological quandaries when it comes to dwarf galaxies like NGC 5949. For example, the distribution of [[dark matter]] within dwarfs is quite puzzling (the “[[Cuspy halo problem|cuspy halo]]” problem), and our simulations of the Universe predict that there should be many more dwarf galaxies than we see around us (the “[[Dwarf galaxy problem|missing satellites]]” problem).<ref name="hst"/>
==References== {{reflist}}
==External links== * {{cite simbad|title=NGC 5949|access-date=7 August 2017}} * {{Commons category-inline}} * {{Creative Commons text attribution notice|cc=by4|url=https://esahubble.org/images/potw1732a/}} {{Ngc60}} {{Draco (constellation)}}
{{DEFAULTSORT:NGC 5949}} [[Category:NGC objects|5949]] [[Category:Draco (constellation)]] [[Category:UGC objects|9866]] {{Authority control}} [[Category:Dwarf spiral galaxies]] [[Category:Unbarred spiral galaxies]]