NGC 3746

Last updated
NGC 3746
N3750s-crop.jpg
Image of NGC 3746 located bottom right below NGC 3745 which was taken by Mount Lemmon Observatory
Observation data (J2000 epoch)
Constellation Leo
Right ascension 11hr 37m 43.622s
Declination +22d 00m 35.38s
Redshift 0.030072
Heliocentric radial velocity 9,015 km/s
Distance 449 Mly (137.66 Mpc)
Group or cluster Copeland Septet
Apparent magnitude  (V)15.0
Characteristics
Type SB(r)b, RET
Size165,000 ly
Other designations
PGC 35997, UGC 6597, CGCG 127-006, MCG +04-28-005, Copeland Septet NED02, 2MASX J11374364+2200349, HCG 057B, 2MASS J11374363+2200353, WBL 343-001, NSA 139936, SDSS J113743.62+220035.3, LEDA 35997

NGC 3746 is a large barred spiral galaxy with a ring structure [1] located in the Leo constellation. [2] It is located 449 million light-years from the Solar System and has an approximate diameter of 165,000 light-years. [3] 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. [4]

Contents

The luminosity class of NGC 3746 is II and it has a broad H II region with a recessed core (RET). [3]

Supernovae

Two supernovae have been discovered in NGC 3746 so far: SN 2002ar and SN 2005ba.

SN 2002ar

SN 2002ar [5] was discovered by Dr W.D. Li from the University of California, Berkeley via unfiltered CCD images which was taken by the 0.8-m Katzman Automatic Imagining Telescope on 3 and 4 February 2002. [6] It was located 3".3 east and 0".5 south of the nucleus. [6] The supernova was Type la. [7] [5]

SN 2005ba

SN 2005ba [8] was discovered on 1 April 2005 by Norwegian scientists Arne Danielsen, Mikkel Steine, and Stale Kildahl via unfiltered images taken from a 'Celestron 14' reflector at Veggli, Norway. [9] It was located 14".6 west and 4".0 north of the nucleus. [10] The supernova was Type II. [11] [8]

Copeland Septet

Sloan Digital Sky Survey image of NGC 3746 alongside other members of Copeland Septet. NGC3746 - SDSS DR14.jpg
Sloan Digital Sky Survey image of NGC 3746 alongside other members of Copeland Septet.

NGC 3746 is a member of the Copeland Septet which comprises 7 galaxies discovered by Copeland in 1874. [12] The other 6 members are NGC 3748, NGC 3754, NGC 3753, NGC 3750, NGC 3745 and NGC 3751. Together, they are known as Hickson 57 and Arp 320. [13]

Related Research Articles

<span class="mw-page-title-main">Messier 74</span> Face-on spiral galaxy in the constellation Pisces

Messier 74 is a large spiral galaxy in the equatorial constellation Pisces. It is about 32 million light-years away from Earth. The galaxy contains two clearly defined spiral arms and is therefore used as an archetypal example of a grand design spiral galaxy. The galaxy's low surface brightness makes it the most difficult Messier object for amateur astronomers to observe. Its relatively large angular size and the galaxy's face-on orientation make it an ideal object for professional astronomers who want to study spiral arm structure and spiral density waves. It is estimated that M74 hosts about 100 billion stars.

<span class="mw-page-title-main">NGC 3184</span> Galaxy in the constellation Ursa Major

NGC 3184, the Little Pinwheel Galaxy, is a spiral galaxy approximately 40 million light-years away in the constellation Ursa Major. Its name comes from its resemblance to the Pinwheel Galaxy. It was discovered on 18 March 1787 by German-British astronomer William Herschel. It has two HII regions named NGC 3180 and NGC 3181.

<span class="mw-page-title-main">NGC 6946</span> Galaxy in the constellations Cepheus & Cygnus

NGC 6946, sometimes referred to as the Fireworks Galaxy, is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus. Its distance from Earth is about 25.2 million light-years or 7.72 megaparsecs, similar to the distance of M101 in the constellation Ursa Major. Both were once considered to be part of the Local Group, but are now known to be among the dozen bright spiral galaxies near the Milky Way but beyond the confines of the Local Group. NGC 6946 lies within the Virgo Supercluster.

<span class="mw-page-title-main">Katzman Automatic Imaging Telescope</span>

The Katzman Automatic Imaging Telescope (KAIT) is an automated telescope used in the search for supernovae.

<span class="mw-page-title-main">NGC 2207 and IC 2163</span> Pair of colliding spiral galaxies in the constellation Canis Major

NGC 2207 and IC 2163 are a pair of colliding spiral galaxies about 80 million light-years away in the constellation Canis Major. Both galaxies were discovered by John Herschel in 1835.

<span class="mw-page-title-main">3C 305</span> Galaxy in the constellation Draco

3C 305, also known as IC 1065, is a lenticular galaxy located in the constellation Draco. The galaxy is located 577 million light-years away from Earth. It has an active galactic nucleus and is classified as a Seyfert 2 galaxy. This galaxy was discovered by American astronomer Lewis Swift when he came upon it on April 7th, 1888.

<span class="mw-page-title-main">NGC 3190</span> Galaxy in the constellation Leo

NGC 3190 is a spiral galaxy with tightly wound arms and lying in the constellation Leo. It was discovered by William Herschel in 1784. NGC 3190 is member of Hickson 44 galaxy group, estimated at around 80 million light years away, and consisting of four galaxies in a tight group - NGC 3193 is fairly featureless, NGC 3187 is a dim but striking spiral galaxy and NGC 3185 has a barred spiral structure with an outer ring. It is also a member of the NGC 3190 Group of galaxies, which is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster.

<span class="mw-page-title-main">NGC 5806</span> Spiral galaxy in the constellation Virgo

NGC 5806 is an intermediate spiral galaxy in the constellation Virgo. It was discovered on February 24, 1786, by the astronomer John Herschel. It is located about 70 million light-years away from the Milky Way. It is a member of the NGC 5846 Group.

<span class="mw-page-title-main">NGC 753</span> Galaxy in the constellation Andromeda

NGC 753 is a spiral galaxy located 220 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer by Heinrich d'Arrest on September 16, 1865 and is a member of Abell 262.

<span class="mw-page-title-main">NGC 5777</span> Galaxy in the constellation Draco

NGC 5777 is a large edge-on spiral galaxy located in the constellation Draco. Its speed relative to the cosmic microwave background is 2,210 ± 5 km/s, which corresponds to a Hubble distance of 32.6 ± 2.3 Mpc. NGC 5777 was discovered by German-British astronomer William Herschel in 1789.

<span class="mw-page-title-main">NGC 945</span> Galaxy in the constellation Cetus

NGC 945 is a barred spiral galaxy in the constellation Cetus. It is located south of the celestial equator. It is estimated to be 200 million light-years from the Milky Way and about 135,000 light-years in diameter. Together with NGC 948, it forms a gravitationally bound pair of galaxies. In the same area of the sky there are, among other things: the galaxies NGC 942, NGC 943, NGC 950, IC 230. The Type Ib supernova SN 1998dt was observed here. The object was discovered by astronomer William Herschel on November 28, 1785. It is within close proximity to NGC 948.

<span class="mw-page-title-main">NGC 4680</span> Galaxy in the constellation Virgo

NGC 4680 is a spiral/lenticular galaxy in the constellation Virgo. It is estimated to be 106 million light-years from the Milky Way and has a diameter of about 45,000 ly. In the same area of the sky there are, among other things: the galaxies NGC 4700 and NGC 4708. NGC 4680 was discovered on May 27, 1835, by John Herschel using an 18-inch reflecting telescope, who described it as "eF, S, has one or two small stars entangled in it".

<span class="mw-page-title-main">NGC 6261</span> Galaxy in the constellation Hercules

NGC 6261 is a lenticular galaxy in the constellation of Hercules. It is located 470 million light-years away from the Solar System and has an approximate diameter of 200,000 light-years.

<span class="mw-page-title-main">NGC 3753</span> Galaxy in the constellation Leo

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> Galaxy in the constellation Leo

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 3745</span> Galaxy in the constellation Leo

NGC 3745 is a lenticular galaxy with a bar structure located in the constellation of Leo. NGC 3745 is located 471 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 3751</span> Galaxy in the constellation Leo

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> Elliptical galaxy in the constellation of Leo

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.

<span class="mw-page-title-main">NGC 3509</span> Galaxy in the constellation Leo

NGC 3509 known as Arp 335, is a barred spiral galaxy located in the constellation Leo. It is located 340 million light-years from the Solar System. NGC 3509 was discovered by astronomer William Herschel on December 30, 1786.

<span class="mw-page-title-main">IC 5145</span> Galaxy in the constellation Pegasus

IC 5145 is a type Sab spiral galaxy located in the constellation Pegasus. It is located 356 million light-years from the Solar System and was discovered by Edward Emerson Barnard, although the year he discovered it is unknown.

References

  1. ↑ "HyperLeda -object description". atlas.obs-hp.fr. Retrieved 2024-05-01.
  2. ↑ Astronomy, Go. "NGC 3746 | galaxy in Leo | NGC List | GO ASTRONOMY". Go-Astronomy.com. Retrieved 2024-05-01.
  3. 1 2 "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-05-01.
  4. ↑ "New General Catalog Objects: NGC 3700 - 3749". cseligman.com. Retrieved 2024-05-01.
  5. 1 2 "SN 2002ar | Transient Name Server". www.wis-tns.org. Retrieved 2024-05-01.
  6. 1 2 "IAUC 7819: 2002ar; 2002as; 2002ao; Corrs". www.cbat.eps.harvard.edu. Retrieved 2024-05-01.
  7. ↑ Filippenko, A. V.; Chornock, R. (2002-02-01). "Supernovae 2002ao, 2002ap, 2002ar, 2002au, 2002av". International Astronomical Union Circular (7825): 1. Bibcode:2002IAUC.7825....1F. ISSN   0081-0304.
  8. 1 2 "SN 2005ba | Transient Name Server". www.wis-tns.org. Retrieved 2024-05-01.
  9. ↑ Kildahl, S.; Danielsen, A.; Steine, M.; Trondal, O. (2005-04-01). "Supernova 2005ba in NGC 3746". International Astronomical Union Circular (8503): 2. Bibcode:2005IAUC.8503....2K. ISSN   0081-0304.
  10. ↑ "Bright Supernovae - 2005". www.rochesterastronomy.org. Retrieved 2024-05-01.
  11. ↑ Foley, R. J.; Ganeshalingam, M.; Wong, D. S.; Swift, B. J.; Filippenko, A. V. (2005-04-01). "Supernova 2005ba in NGC 3746". International Astronomical Union Circular (8510): 2. Bibcode:2005IAUC.8510....2F. ISSN   0081-0304.
  12. ↑ Bakich, Michael E. (2024-01-01). "Copeland's Septet". Astronomy Magazine. Retrieved 2024-05-01.
  13. ↑ "Copeland's Septet (Hickson Compact Group 57) – Constellation Guide". www.constellation-guide.com. Retrieved 2024-05-01.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.