NGC 5866B

{{Short description|Intermediate spiral galaxy in the constellation Draco}} {{Infobox galaxy | name = NGC 5866B | image = NGC 5866B - legacy surveys.jpg | caption = NGC 5866B imaged by Legacy Surveys | epoch = [[J2000]] | constellation name = [[Draco (constellation)|Draco]] | ra = {{RA|15|12|7.1448}}<ref name="ned">{{cite web | url = https://ned.ipac.caltech.edu/byname?objname=NGC+5866B | title = Results for NGC 5866B | publisher = NASA/IPAC Extragalactic Database via Univ. of California | access-date = 2024-02-22}}</ref> | dec = {{DEC|+55|47|6.187}}{{r|ned}} | z = 0.002805{{r|ned}} | dist_ly = {{cvt|16.1|+/-|1.6|Mpc|Mly|order=flip|lk=on}}{{r|ned}} | type = SAB(rs)dm{{r|ned}} | size = ~{{convert|14.05|kpc|ly|abbr=on|lk=on|order=flip}} (estimated){{r|ned}} | appmag_v = 15.7 | size_v = {{Val|2.29|×|1.62|u=arcminute}}<ref name="SIMBAD">{{cite simbad | title=UGC 9769 | access-date=10 April 2025}}</ref> | notes = | names = {{odlist | MCG= +09-25-034 | CGCG= 274-033 | UGC= 9769 | PGC= 54267}}{{r|ned}} }} {{Sky|15|12|7.1448|+|55|47|6.187}} '''NGC 5866B''' (also known as '''[[Uppsala General Catalogue|UGC]] 9769''') is an [[intermediate spiral galaxy]] located about 52 million light-years away from Earth in the constellation of [[Draco (constellation)|Draco]].<ref name="ned" /> The galaxy was discovered by [[Philip Childs Keenan|Philip C. Keenan]] in March, 1935.<ref>{{Cite journal | last = Keenan | first = Philip C. | title = Studies of Extra-Galactic Nebulae. Part I: Determination of Magnitudes | journal = The Astrophysical Journal | volume = 82 | pages = 62–79 | year = 1935 | doi = 10.1086/143656 | bibcode = 1935ApJ....82...62K }}</ref> It is sometimes classified as a member of the [[NGC 5866 Group]] of galaxies {{Citation needed|date=February 2024}} and has a diameter of around {{cvt|14.05|kpc|kly|order=flip|lk=on}}.{{r|ned}} In visible light, the galaxy exhibits an overall bluish color and as it is relatively dim for a galaxy of its size, it is classified as a [[low surface brightness galaxy]] (LSB).<ref>{{cite web |url=https://www.astrobin.com/8gxreg/BE/|title=NGC 5907 (NGC 5906) The Splinter Galaxy and UGC 9769|author=Michael Feigenbaum|date=2022-07-28|accessdate=2024-02-22}}</ref><ref>{{cite journal| author=Isha Pahwa| author2=Kanak Saha| name-list-style=amp| title=Structural properties of faint low-surface-brightness galaxies| journal=Monthly Notices of the Royal Astronomical Society| date=2018| volume=478| issue=4| pages=4657–4668|arxiv =1805.00499 |bibcode = |doi = 10.1093/mnras/sty1139 | doi-access=free| s2cid=}}</ref>

NGC 5866B is located relatively close in the sky to the more well-known [[NGC 5907]] (Splinter Galaxy) and [[NGC 5866]] (Spindle Galaxy).<ref>{{cite web| url=https://telescopius.com/deep-sky-objects/ugc-9769/spiral-galaxy/barred-spiral-galaxy/low-surface-brightness-galaxy|title=Telescope simulator - UGC 9769|author=Telescopius.com|accessdate=2024-02-22}}</ref>

== See also == * [[List of NGC objects (5001–6000)]]

==References== {{Reflist}}

[[Category:Intermediate spiral galaxies]] [[Category:Low surface brightness galaxies]] [[Category:NGC 5866 Group]] [[Category:Draco (constellation)]] [[Category:UGC objects|09769]] [[Category:Principal Galaxies Catalogue objects|054267]] [[Category:MCG objects|+09-25-034]] [[Category:Astronomical objects discovered in 1935]]