NGC 3750 is a lenticular galaxy with a bar[1] located in the constellation of Leo.[2][3] It is located 450 million light-years from the Solar System[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". atlas.obs-hp.fr. Retrieved 2024-05-02.
  2. ^ a b Astronomy, Go. "NGC 3750 | galaxy in Leo | NGC List | GO ASTRONOMY". Go-Astronomy.com. Retrieved 2024-05-02.
  3. ^ "NGC 3750". spider.seds.org. Retrieved 2024-05-02.
  4. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-05-02.
  5. ^ "New General Catalog Objects: NGC 3750 - 3799". cseligman.com. Retrieved 2024-05-02.
  6. ^ "NGC 3750 - LINER-type Active Galaxy Nucleus". simbad.u-strasbg.fr. Retrieved 2024-05-02.
  7. ^ Bakich, Michael E. (2024-01-01). "Copeland's Septet". Astronomy Magazine. Retrieved 2024-05-02.
  8. ^ "Copeland's Septet (Hickson Compact Group 57) – Constellation Guide". www.constellation-guide.com. Retrieved 2024-05-02.
  9. ^ "NED Search Results for ARP 320". ned.ipac.caltech.edu. Retrieved 2024-05-02.
  10. ^ "Copeland's Septet (Arp 320) - Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets, Telescopes". cs.astronomy.com. Retrieved 2024-05-02.
  11. ^ Hickson, P. (1982-04-01). "Systematic properties of compact groups of galaxies". The Astrophysical Journal. 255: 382–391. Bibcode:1982ApJ...255..382H. doi:10.1086/159838. ISSN 0004-637X.
  12. ^ "Data from Revised NGC and IC catalogue by Wolfgang Steinicke - NGC 3700 to 3799". astrovalleyfield.ca. Retrieved 2024-05-02.
Allikas: https://en.wikipedia.org/wiki/NGC_3750
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