Astronomy:NGC 3750

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NGC 3750
NGC 3750 with NGC 3753 beneath it
Observation data (J2000 epoch)
ConstellationLeo
Right ascension11h 37m 51.637s
Declination+21d 58m 27.26s
Redshift0.030258
Helio radial velocity9,071 km/s
Distance450 Mly (138 Mpc)
Group or clusterCopeland Septet
Apparent magnitude (V)13.9
Characteristics
TypeSAB0?, E-S0
Size156,000 ly
Other designations
PGC 36011, CGCG 127-009, VV 282c, MCG +04-28-008, Copeland Septet NED04, HCG 057C, 2MASS J11375165+2158272, SDSS J113751.63+215827.2, NSA 112843, 2XMM J113751.7+215827, LEDA 36011

NGC 3750 is a barred lenticular galaxy[1] located in the constellation of Leo.[2][3] It is located 450 million light years away from Earth.[4] and was discovered by Ralph Copeland on February 9, 1874.[5]

NGC 3750 has a surface brightness of magnitude 23.7[2] and is classified a LINER galaxy by SIMBAD, meaning it has a nucleus, presenting an emission spectrum characterized by broad lines of weakly ionized atoms.[6]

Copeland Septet

NGC 3750 is a member of the Copeland Septet which is made up of 7 seven galaxies discovered by Copeland.[7] The other members are NGC 3745, NGC 3746, NGC 3748, NGC 3751, NGC 3753 and NGC 3754.[8]

Halton Arp noticed the galaxies in the group, whom he published in his article in 1966.[9] This group is designated as Arp 320 along with another galaxy, PGC 36010.[10]

This group was also observed by Paul Hickson whom he included in his article in 1982.[11] The group is known as Hickson 57, in which NGC 3750 is designated is HCG 57C.[12]

References

  1. "HyperLeda -object description". http://atlas.obs-hp.fr/hyperleda/ledacat.cgi?o=NGC%203750. 
  2. 2.0 2.1 Astronomy, Go. "NGC 3750 | galaxy in Leo | NGC List | GO ASTRONOMY" (in en-US). https://www.go-astronomy.com/ngc.php?ID=3978. 
  3. "NGC 3750". https://spider.seds.org/ngc/ngc.cgi?CatalogNumber=NGC+3750. 
  4. "Your NED Search Results". https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=56902&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1. 
  5. "New General Catalog Objects: NGC 3750 - 3799". https://cseligman.com/text/atlas/ngc37a.htm. 
  6. "NGC 3750 - LINER-type Active Galaxy Nucleus". https://simbad.u-strasbg.fr/simbad/sim-basic. 
  7. Bakich, Michael E. (2024-01-01). "Copeland's Septet" (in en-US). https://www.astronomy.com/science/copelands-septet/. 
  8. "Copeland's Septet (Hickson Compact Group 57) – Constellation Guide". https://www.constellation-guide.com/copelands-septet/. 
  9. "NED Search Results for ARP 320". https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=Arp+320&extend=yes&out_csys=Equatorial&out_equinox=B1950.0&obj_sort=RA+or+Longitude&zv=z&zv_breaker=10000.0. 
  10. "Copeland's Septet (Arp 320) - Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets, Telescopes". https://cs.astronomy.com/asy/m/galaxies/492462.aspx. 
  11. Hickson, P. (1982-04-01). "Systematic properties of compact groups of galaxies.". The Astrophysical Journal 255: 382–391. doi:10.1086/159838. ISSN 0004-637X. Bibcode1982ApJ...255..382H. https://ui.adsabs.harvard.edu/abs/1982ApJ...255..382H. 
  12. "Data from Revised NGC and IC catalogue by Wolfgang Steinicke - NGC 3700 to 3799". http://astrovalleyfield.ca/AstronomieCompl/NGC%20et%20autres/WolfgangS/N3700_exc_web.htm.