:UGC 711
{{Short description|Galaxy in the constellation Cetus}}
{{Technical|date=March 2025}}
{{Infobox galaxy|name=UGC 711|epoch=J2000|constellation name=Cetus|ra={{RA|01|08|36.90}}|dec={{DEC|+01|38|30.0}}|z=0.006611|h_radial_v=1,982 km/s|dist_ly=77 Mly (23.6 Mpc)|appmag_v=0.069|appmag_b=0.092|sbrightness=14.39|type=SB (s)d?, sp|size_v=4.65' x 0.30'|notes=Superthin spiral galaxy|names=PGC 4063, FGC 0124, RFGC 0255, MCG +00-04-008, CGCG 385-005|image=File:SDSS image of UGC 711.jpg|caption=UGC 711 imaged by SDSS. The star to the left of the galaxy is TYC 19-146-2}}
UGC 711 is a spiral galaxy located in the constellation of Cetus. Estimated to be located 77 million light-years from Earth,{{Cite web |title=Your NED Search Results |url=https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=2890&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1 |access-date=2024-06-29 |website=ned.ipac.caltech.edu}} the galaxy's luminosity class is IV and it has a HI line width region.{{huh|date=June 2024}}{{Cite journal |last1=Lu |first1=N. Y. |last2=Hoffman |first2=G. L. |last3=Groff |first3=T. |last4=Roos |first4=T. |last5=Lamphier |first5=C. |date=1993-10-01 |title=H i 21 Centimeter Observations and I-Band CCD Surface Photometry of Spiral Galaxies behind the Virgo Cluster and toward Its Antipode |url=https://ui.adsabs.harvard.edu/abs/1993ApJS...88..383L |journal=The Astrophysical Journal Supplement Series |volume=88 |pages=383 |doi=10.1086/191826 |bibcode=1993ApJS...88..383L |issn=0067-0049}} It belongs to the equatorial region of Eridanus Void with an arcsec approximation of ≈ 250.{{huh|date=June 2024}}{{Cite journal |last1=Kniazev |first1=A Y |last2=Egorova |first2=E S |last3=Pustilnik |first3=S A |date=2018-07-02 |title=Study of galaxies in the Eridanus void. Sample and oxygen abundances |journal=Monthly Notices of the Royal Astronomical Society |volume=479 |issue=3 |pages=3842–3857 |doi=10.1093/mnras/sty1704 |doi-access=free |issn=0035-8711|arxiv=1809.05866 }}
Morphology
UGC 711 is considered a low-surface brightness galaxy (LSB){{Cite journal |last1=Matthews |first1=L. D. |last2=Wood |first2=Kenneth |date=2001-02-10 |title=Modeling the Interstellar Medium of Low Surface Brightness Galaxies: Constraining Internal Extinction, Disk Color Gradients, and Intrinsic Rotation Curve Shapes |url=http://dx.doi.org/10.1086/318687 |journal=The Astrophysical Journal |volume=548 |issue=1 |pages=150–171 |doi=10.1086/318687 |arxiv=astro-ph/0010033 |bibcode=2001ApJ...548..150M |issn=0004-637X}} with a diffuse stellar disk.{{Cite journal |last1=Mendelowitz |first1=C. M. |last2=Matthews |first2=L. D. |last3=Hibbard |first3=J. E. |last4=Wilcots |first4=E. M. |date=2000-12-01 |title=Rotation Curve and Mass Decomposition for the Edge-on Spiral Galaxy UGC 711 |journal=American Astronomical Society Meeting Abstracts |url=https://ui.adsabs.harvard.edu/abs/2000AAS...197.4008M |volume=197 |pages=40.08|bibcode=2000AAS...197.4008M }}{{Cite journal |last1=Gilmore |first1=G. |last2=Unavane |first2=M. |date=1998-12-11 |title=Dark haloes of spiral galaxies: ISO photometry |url=http://dx.doi.org/10.1111/j.1365-8711.1998.02062.x |journal=Monthly Notices of the Royal Astronomical Society |volume=301 |issue=3 |pages=813–826 |doi=10.1111/j.1365-8711.1998.02062.x |issn=0035-8711}}
With a surface brightness measurement found ~1 magnitude less illuminated compared to μ B,0 = 21.65 mag arcsec−2 according to K.C. Freeman,{{Cite journal |last=Freeman |first=K. C. |date=1970-06-01 |title=On the Disks of Spiral and S0 Galaxies |url=https://ui.adsabs.harvard.edu/abs/1970ApJ...160..811F |journal=The Astrophysical Journal |volume=160 |pages=811 |doi=10.1086/150474 |bibcode=1970ApJ...160..811F |issn=0004-637X}} UGC 711 is one of best studied superthin galaxies defined by its atypical classification when seen edge-on.{{Cite journal |last1=Goad |first1=J. W. |last2=Roberts |first2=M. S. |date=1979-12-01 |title=Spectroscopic Observations of Superthin Galaxies |url=https://ui.adsabs.harvard.edu/abs/1979BAAS...11..668G |journal=Bulletin of the American Astronomical Society |volume=11 |pages=668|bibcode=1979BAAS...11..668G }}{{Cite journal |last1=Bizyaev |first1=D. V. |last2=Kautsch |first2=S. J. |last3=Sotnikova |first3=N. Ya. |last4=Reshetnikov |first4=V. P. |last5=Mosenkov |first5=A. V. |date=2017-03-01 |title=Very thin disc galaxies in the SDSS catalogue of edge-on galaxies |journal=Monthly Notices of the Royal Astronomical Society |volume=465 |issue=4 |pages=3784–3792 |doi=10.1093/mnras/stw2972 |doi-access=free |arxiv=1612.01042 |bibcode=2017MNRAS.465.3784B |issn=0035-8711}}{{Cite journal |last1=Jadhav Y |first1=Vikas |last2=Banerjee |first2=Arunima |date=2019-09-01 |title=The specific angular momenta of superthin galaxies: Cue to their origin? |journal=Monthly Notices of the Royal Astronomical Society |volume=488 |issue=1 |pages=547–558 |doi=10.1093/mnras/stz1680 |doi-access=free |arxiv=1906.10039 |bibcode=2019MNRAS.488..547J |issn=0035-8711}} It has a flat structure with only a diameter estimating to be a = 40 arcsecs but has a major-to-minor axis ratio wider than 7 arcsecs.{{Cite journal |last1=Karachentsev |first1=I. D. |last2=Karachentseva |first2=V. E. |last3=Parnovskij |first3=S. L. |date=1993-05-01 |title=Flat galaxies catalogue. |url=https://ui.adsabs.harvard.edu/abs/1993AN....314...97K |journal=Astronomische Nachrichten |volume=314 |issue=3 |pages=97–222 |doi=10.1002/asna.2113140302 |bibcode=1993AN....314...97K |issn=0004-6337}}
The rotational velocity of UGC 711 is said to be only Vcirc = 92 km s−1 according to measurements from Hyperleda.{{Cite web |title=Secular Evolution in Disk Galaxies - John Kormendy |url=https://ned.ipac.caltech.edu/level5/Sept14/Kormendy/Kormendy6.html |access-date=2024-06-29 |website=ned.ipac.caltech.edu}}