View source for NGC 5033

{{Short description|Galaxy in the constellation Canes Venatici}}
{{Sky|13|13|27.4737|+|36|35|38.119}}
{{Infobox Galaxy
| name = [[New General Catalogue|NGC]] 5033
| image = File:N5033s.jpg
| caption = NGC 5033 imaged by the [[Mount Lemmon Observatory]]
| constellation name = [[Canes Venatici]]<ref name="sinnott1988">{{cite book 
  | editor=R. W. Sinnott
  | title= The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer
  | date=1988
  | publisher=Sky Publishing Corporation and Cambridge University Press
  | isbn=978-0-933346-51-2}}</ref>
| type = SA(s)c<ref name="ned">{{cite web
  | website=NASA/IPAC Extragalactic Database
  | publisher = [[NASA]] and [[California Institute of Technology|Caltech]]
  | title=Results for object NGC 5033
  | url=https://ned.ipac.caltech.edu/byname?objname=NGC+5033
  | access-date=2006-11-15}}</ref>
| epoch = [[J2000]]
| ra = {{RA|13|13|27.4737}}<ref name="ned" />
| dec = {{DEC|+36|35|38.119}}<ref name="ned" />
| dist_ly = {{convert|16.468 ± 1.344|Mpc|Mly|abbr=on|lk=on|order=flip}}{{r|ned}}
| z = {{val|0.002912|0.000002}}{{r|ned}}
| h_radial_v = {{val|873|1|u=km/s|fmt=commas}}{{r|ned}}
| appmag_v = 10.75<ref name="ned" />
| size = ~{{convert|55.09|kpc|ly|abbr=on|lk=on|order=flip}} (estimated){{r|ned}}
| size_v = {{Val|10.7|×|5.0|u=arcminute}}{{r|ned}}
| names = {{odlist | UGC= 8307 | PGC= 45948 | CGCG= 189-043 | MCG= +06-29-062 | IRAS= 13111+3651}}<ref name="ned" />
}}

'''NGC 5033''' is an inclined [[spiral galaxy]] located in the constellation [[Canes Venatici]].  Its velocity with respect to the [[cosmic microwave background]] is {{val|1101|16|u=km/s|fmt=commas}}, which corresponds to a [[Hubble's law|Hubble distance]] of {{convert|16.24 ± 1.16|Mpc|Mly|abbr=on|lk=on|order=flip}}.{{r|ned}} Additionally, 25 ''non-redshift'' measurements give a similar distance of {{convert|16.468 ± 1.344|Mpc|Mly|abbr=on|lk=off|order=flip}}.<ref>{{cite web | url = https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+5033 | title = Distance Results for NGC 5033 | website = NASA/IPAC EXTRAGALACTIC DATABASE | publisher = [[NASA]] | access-date = 3 June 2025}}</ref> It was discovered by German-British astronomer [[William Herschel]] on 1 May 1785.<ref>{{cite journal |last=Herschel |first=W. |date=1789 |title=Catalogue of a Second Thousand of New Nebulae and Clusters of Stars; with a Few introductory Remarks on the Construction of the Heavens |journal=[[Philosophical Transactions of the Royal Society of London]] |volume=79 |pages=212–255 |bibcode=1789RSPT...79..212H |doi=10.1098/rstl.1789.0021|doi-access=free}}</ref><ref name="selig">{{cite web | url = https://cseligman.com/text/atlas/ngc50.htm#5033 | title = New General Catalogue Objects: NGC{{nbsp}}5033 | last = Seligman | first = Courtney | website = Celestial Atlas | access-date = 3 June 2025}}</ref>

NGC 5033 has a very bright nucleus and a relatively faint disk.  Significant warping is visible in the southern half of the disk.  The galaxy's relatively large angular size and relatively high surface brightness make it an object that can be viewed and imaged by amateur astronomers.  The galaxy's location relatively near [[Earth]] and its [[active galactic nucleus]] make it a commonly studied object for professional astronomers.

==Supernovae==
Four [[supernova]]e have been observed in NGC 5033:
* SN 1950C (type unknown, mag. 18.2) was discovered by [[Fritz Zwicky]] on 14 May 1950.<ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1950C | url=https://www.wis-tns.org/object/1950C | publisher = [[International_Astronomical_Union|IAU]] | access-date=27 November 2024}}</ref><ref>{{cite journal | doi=10.1086/128951 | doi-access=free | title=The 1969 Palomar Supernova Search | date=1970 | last1=Kowal | first1=C. T. | last2=Sargent | first2=W. L. W. | last3=Zwicky | first3=F. | journal=Publications of the Astronomical Society of the Pacific | volume=82 | issue=487 | page=736 | bibcode=1970PASP...82..736K}}</ref>
* SN 1985L ([[Type_II_supernova|Type II]], mag. 12.5) was discovered by [[List_of_minor_planet_discoverers#N._V._Metlova|Natalya Metlova]] on 13 June 1985.<ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1985L | url=https://www.wis-tns.org/object/1985L | publisher = [[International_Astronomical_Union|IAU]] | access-date=27 November 2024}}</ref><ref>{{cite journal | bibcode=1985IAUC.4077....2A | title=Supernovae | last1=Aksenov | first1=E. P. | last2=Terebizh | first2=Yu. V. | last3=Metlova | first3=N. | last4=Leibundgut | first4=B. | last5=Albert | first5=T. | journal=International Astronomical Union Circular | date=1985 | issue=4077 | page=2}}</ref>
* SN 2001gd ([[Type_II_supernova#Type_IIb_supernovae|Type{{nbsp}}IIb]], mag. 16.5) was discovered by [[Kōichi Itagaki]] and [[List_of_minor_planet_discoverers#A._Dimai|Alessandro Dimai]] on 24 November 2001.<ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}2001gd | url=https://www.wis-tns.org/object/2001gd | publisher = [[International_Astronomical_Union|IAU]] | access-date=27 November 2024}}</ref><ref>{{cite journal | bibcode= 2001IAUC.7761....1N | title= Supernova 2001gd in NGC 5033 | last1= Nakano | first1= S. | last2= Itagaki | first2= K. | last3= Kushida | first3= Y. | last4= Kushida | first4= R. | last5= Dimai | first5= A. | journal= International Astronomical Union Circular | date= 2001 | issue= 7761 | page= 1}}</ref>
* SN 2025mvn (Type II, mag. 17.912) was discovered by [[Asteroid Terrestrial-impact Last Alert System|ATLAS]] on 3 June 2025.<ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}2025mvn | url=https://www.wis-tns.org/object/2025mvn | publisher = [[International Astronomical Union|IAU]] | access-date=4 June 2025}}</ref>

==Nucleus==
[[File:A galaxy with a bright heart NGC 5033.tif|thumb|left|Detail of the galaxy by the [[Hubble Space Telescope]]. The bright core is believed to be an active supermassive black hole devouring stars, dust]]
NGC 5033 contains a [[Seyfert galaxy|Seyfert]] nucleus, a type of [[active galactic nucleus]].<ref name="hoetal1997">{{cite journal
  | author= L. C. Ho | author2= A. V. Filippenko | author3= W. L. W. Sargent
  | title=A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies
  | journal=Astrophysical Journal Supplement
  | date=1997
  | volume=112
  | issue= 2
  | pages=315–390
  | bibcode=1997ApJS..112..315H
  | doi=10.1086/313041 |arxiv = astro-ph/9704107 | s2cid= 17086638 }}</ref>  Like many other active galactic nuclei, this galaxy's nucleus is thought to contain a [[supermassive black hole]].  The bright emission seen in visible light (as well as other wavebands) is partially produced by the hot gas in the environment around this black hole.

[[Integral field spectroscopy|Integral field spectroscopic]] observations of the center of NGC 5033 indicate that the Seyfert nucleus is not located at the kinematic center of the galaxy (the point around which the stars in the galaxies rotate).<ref name="meiavillaetal2006">{{cite journal
  | author= E. Meiavilla | display-authors= 3 | author2= A. Guijarro | author3= A. Castillo-Morales | author4= J. Jimenez-Vicente | author5= E. Florido | author6= S. Arribas | author7= B. Garcia-Lorenzo | author8= E. Battaner
  | title= Asymmetrical structure of ionization and kinematics in the Seyfert galaxy NGC 5033
  | journal= Astronomy and Astrophysics
  | date=2005
  | volume=433
  | issue= 1
  | pages=79–86
  | bibcode=2005A&A...433...79M
  | doi= 10.1051/0004-6361:20034537 |arxiv = astro-ph/0412410 | s2cid= 16034143 }}</ref>  This has been interpreted as evidence that this galaxy has undergone a merger.  The displacement of the Seyfert nucleus from the kinematic center may destabilize the rotation of gas in the center of the galaxy, which could cause gas to fall into the Seyfert nucleus.  The gas would be compressed by the enormous gravitational forces in the center of the Seyfert nucleus and become hot, thus making the nucleus appear bright or "active".

==Nearby galaxies==
NGC 5033 and the nearby spiral galaxy [[NGC 5005]] comprise a physical galaxy pair.<ref name="helouetal1982">{{cite journal
  | author= G. Helou | author2= E. E. Salpeter | author3= Y. Terzian
  | title= Neutral hydrogen in binary and multiple galaxies
  | journal=Astronomical Journal
  | date=1982
  | volume=87
  | pages=1443–1464
  | bibcode=1982AJ.....87.1443H
  | doi= 10.1086/113235 }}</ref>  The two galaxies weakly influence each other gravitationally, but they are not yet close enough to each other to be distorted by the tidal forces of the gravitational interaction. The fainter [[irregular galaxy]] [[IC 4182]] is also a member of this group.

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

==References==
{{reflist}}

==External links==
* {{commonscat-inline}}

{{Catalogs|NGC=5033|UGC=8307}}
{{Ngc55}}
{{Canes Venatici}}

{{DEFAULTSORT:NGC 5033}}
[[Category:Unbarred spiral galaxies]]
[[Category:Seyfert galaxies]]
[[Category:Canes Venatici]]
[[Category:NGC objects|5033]]
[[Category:UGC objects|08307]]
[[Category:Principal Galaxies Catalogue objects|045948]]
[[Category:MCG objects|+06-29-062]]
[[Category:IRAS catalogue objects|13111+3651]]
[[Category:Discoveries by William Herschel]]
[[Category:Astronomical objects discovered in 1785|17850501]]