NGC 3745

Last updated
NGC 3745
HCG 57.jpg
DECam image of NGC 3745 and the members of the Copeland Septet
Observation data
Constellation Leo
Right ascension 11h 37m 44.434s
Declination +22d 01m 16.64s
Redshift 0.031577
Heliocentric radial velocity 9,467 km/s
Distance 471 Mly (144.4 Mpc)
Group or cluster Copeland Septet
Apparent magnitude  (V)15.2
Characteristics
Type SB(s)0, E-S0
Size74,500 ly
Other designations
PGC 36001, MCG +04-28-004, Copeland Septet NED01, 2MASX J11374443+2201170, SDSS J113744.43+220116.5, HCG 057G, NSA 112840, SSTSL2 J113744.44+220116.6, LEDA 36001

NGC 3745 is a lenticular galaxy with a bar structure [1] located in the constellation of Leo. [2] [3] NGC 3745 is located 471 million light-years away from the Solar System [4] and was discovered by Ralph Copeland on April 5, 1874, but also observed by Hermann Kobold, Lawrence Parsons and John Louis Emil Dreyer. [5]

Copeland Septet

NGC 3745 is a member of the Copeland Septet. [6] The other members of the group are NGC 3746, NGC 3748, NGC 3750, NGC 3751, NGC 3753 and NGC 3754. [7]

Sloan Digital Sky Survey image of NGC 3745 which is located above NGC 3746. NGC 3745 SDSS.jpg
Sloan Digital Sky Survey image of NGC 3745 which is located above NGC 3746.

Halton Arp noticed the group when he published the article in 1966. [8] The group is designated as Arp 320 in which another galaxy PGC 36010, is part of it. [9]

This group was also observed by Paul Hickson, in which he included them inside his article in 1982. [10] This group is known as Hickson 57, in which NGC 3745 is designated as HCG 57G. [11]

Related Research Articles

<span class="mw-page-title-main">NGC 3718</span> Galaxy in the constellation Ursa Major

NGC 3718, also called Arp 214, is a galaxy located approximately 52 million light years from Earth in the constellation Ursa Major. It is either a lenticular or spiral galaxy.

<span class="mw-page-title-main">NGC 1190</span> Galaxy in the constellation Eridanus

NGC 1190 is a lenticular galaxy approximately 109 million light-years away from Earth in the constellation of Eridanus. It was discovered by American astronomer Francis Leavenworth on December 2, 1885 with the 26" refractor at Leander McCormick Observatory.

<span class="mw-page-title-main">NGC 1189</span> Galaxy in the constellation Eridanus

NGC 1189 is a barred spiral galaxy approximately 105 million light-years away from Earth in the constellation of Eridanus. It was discovered by American astronomer Francis Leavenworth on December 2, 1885 with the 26" refractor at Leander McCormick Observatory.

<span class="mw-page-title-main">NGC 1191</span> Galaxy in the constellation Eridanus

NGC 1191 is a lenticular galaxy approximately 406 million light-years away from Earth in the constellation of Eridanus. It was discovered by American astronomer Francis Leavenworth on December 2, 1885 with the 26" refractor at Leander McCormick Observatory.

<span class="mw-page-title-main">NGC 1199</span> Galaxy in the constellation Eridanus

NGC 1199 is an elliptical galaxy approximately 107 million light-years away from Earth in the constellation of Eridanus. It was discovered by William Herschel on December 30, 1785.

<span class="mw-page-title-main">NGC 1192</span> Galaxy in the constellation Eridanus

NGC 1192 is a lenticular galaxy approximately 417 million light-years away from Earth in the constellation of Eridanus. It was discovered by American astronomer Francis Leavenworth on December 2, 1885 with the 26" refractor at Leander McCormick Observatory.

<span class="mw-page-title-main">Copeland Septet</span> A group of galaxies in the constellation Leo

The Copeland Septet is a group of galaxies in the constellation Leo that includes NGC 3748, NGC 3754, NGC 3750, NGC 3751, NGC 3745, NGC 3753 and NGC 3746. The group was discovered by British astronomer Ralph Copeland in 1874. The location of Copeland's Septet is right ascension 11h 37m 50s / declination +21° 59′ (2000.0), about three degrees northwest of third magnitude star 93 Leonis.

<span class="mw-page-title-main">NGC 739</span> Galaxy in the constellation Triangulum

NGC 739 is a spiral galaxy approximately 193 million light-years away from Earth in the constellation of Triangulum.

<span class="mw-page-title-main">NGC 5910</span> Galaxy in the constellation of Serpens

NGC 5910 is an elliptical galaxy located about 540 million light-years away in the constellation Serpens. It was discovered by astronomer William Hershel on April 13, 1785. NGC 5910 is also a strong radio source with a conspicuous nuclear jet.

<span class="mw-page-title-main">NGC 7329</span> Galaxy in the constellation Tucana

NGC 7329 is a large barred spiral galaxy located in the constellation Tucana. NGC 7329 was discovered by British astronomer John Herschel in 1835.

<span class="mw-page-title-main">NGC 646</span> Galaxy in the constellation Hydrus

NGC 646 is a large barred spiral galaxy located in the constellation Hydrus. Its speed relative to the cosmic microwave background is 8,145 ± 19 km/s, which corresponds to a Hubble distance of 120.1 ± 8.4 Mpc. NGC 646 was discovered by British astronomer John Herschel in 1834. It forms an interacting galaxy pair.

<span class="mw-page-title-main">NGC 5008</span> Galaxy in the constellation Boötes

NGC 5008 is a massive barred spiral galaxy located in the Boötes constellation.

<span class="mw-page-title-main">NGC 3758</span>

NGC 3758 known as the Owl Galaxy, is a type Sb spiral galaxy in the constellation of Leo. It is located 447 million light-years from the solar system and an approximate diameter of 70,000 thousand light-years. NGC 3758 was discovered by Ralph Copeland on March 18, 1874, but also independently discovered by Edouard Stephan ten years later.

<span class="mw-page-title-main">NGC 3746</span>

NGC 3746 is a large barred spiral galaxy with a ring structure located in the Leo constellation. It is located 449 million light-years from the Solar System and has an approximate diameter of 165,000 thousand light-years. NGC 3746 was discovered by Ralph Copeland on 9 February 1874 with subsequent observations made by Hermann Kobold, Lawrence Parsons and John Louis Emil Dreyer.

<span class="mw-page-title-main">NGC 3753</span>

NGC 3753 is a large spiral galaxy with a bar located in the Leo constellation. It is located 435 million light-years away from the Solar System and was discovered on February 9, 1874, by Ralph Copeland.

<span class="mw-page-title-main">NGC 3750</span>

NGC 3750 is a lenticular galaxy with a bar located in the constellation of Leo. It is located 450 million light-years from the Solar System and was discovered by Ralph Copeland on February 9, 1874.

<span class="mw-page-title-main">NGC 3748</span>

NGC 3748 is a lenticular galaxy with a bar located in the Leo constellation. It is located 440 million light-years away from the Solar System and was discovered by Ralph Copeland on April 5, 1874, but also observed by Hermann Kobold, Lawrence Parsons and John Louis Emil Dreyer.

<span class="mw-page-title-main">NGC 3754</span>

NGC 3754 is a small barred spiral galaxy with a bar located in Leo. It is located 447 million light-years away from the Solar System and was discovered on April 5, 1874, by Ralph Copeland.

<span class="mw-page-title-main">NGC 3751</span>

NGC 3751 is a type E-S0 lenticular galaxy located in the Leo constellation. It is located 450 million light-years away from the Solar System and was discovered by Ralph Copeland on April 5, 1874.

<span class="mw-page-title-main">IC 2759</span>

IC 2759 is a small type E elliptical galaxy located in the constellation of Leo. it is located 350 million light-years away from the Solar System and was discovered on April 24, 1897, by Guillaume Bigourdan. Sometimes IC 2759 is confused with the spiral galaxy, PGC 34882 which is located south of the galaxy.

References

  1. ↑ "HyperLeda -object description". atlas.obs-hp.fr. Retrieved 2024-05-03.
  2. ↑ "Revised NGC Data for NGC 3745". spider.seds.org. Retrieved 2024-05-03.
  3. ↑ Astronomy, Go. "NGC 3745 | galaxy in Leo | NGC List | GO ASTRONOMY". Go-Astronomy.com. Retrieved 2024-05-03.
  4. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-05-03.
  5. ↑ "New General Catalog Objects: NGC 3700 - 3749". cseligman.com. Retrieved 2024-05-03.
  6. ↑ Bakich, Michael E. (2024-01-01). "Copeland's Septet". Astronomy Magazine. Retrieved 2024-05-03.
  7. ↑ "Copeland's Septet (Hickson Compact Group 57) – Constellation Guide". www.constellation-guide.com. Retrieved 2024-05-03.
  8. ↑ "NED Search Results for ARP 320". ned.ipac.caltech.edu. Retrieved 2024-05-03.
  9. ↑ "Copeland's Septet (Arp 320) - Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets, Telescopes". cs.astronomy.com. Retrieved 2024-05-03.
  10. ↑ 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.
  11. ↑ astrovalleyfield.ca http://astrovalleyfield.ca/AstronomieCompl/NGC%20et%20autres/WolfgangS/N3700_exc_web.htm . Retrieved 2024-05-03.{{cite web}}: Missing or empty |title= (help)
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