NGC 169

Last updated
NGC 169
Arp 282.png
Hubble Space Telescope/Víctor M. Blanco Telescope image of NGC 169 (top) and IC 1559 (bottom)
Observation data (J2000 epoch)
Constellation Andromeda
Right ascension 00h 36m 51.6s [1]
Declination +23° 59 27 [1]
Redshift 0.015434 [1]
Apparent magnitude  (V)13.3 [1]
Characteristics
Type SA(s)ab [1]
Apparent size  (V)2.6' × 0.7' [1]
Other designations
UGC 365, PGC 2202, Arp 282 [1]

NGC 169 is a spiral galaxy located in the constellation Andromeda. It was discovered on September 18, 1857 by R. J. Mitchell. [2]

NGC 169 has a smaller companion named NGC 169A, also designated IC1559. The two are currently interacting, and the pair is included in Halton Arp's Atlas of Peculiar Galaxies. [3]

Related Research Articles

<i>Atlas of Peculiar Galaxies</i> Catalogue of peculiar galaxies produced by Halton Arp

The Atlas of Peculiar Galaxies is a catalog of peculiar galaxies produced by Halton Arp in 1966. A total of 338 galaxies are presented in the atlas, which was originally published in 1966 by the California Institute of Technology. The primary goal of the catalog was to present photographs of examples of the different kinds of peculiar structures found among galaxies.

<span class="mw-page-title-main">NGC 7314</span> Galaxy in the constellation Piscis Austrinus

NGC 7314 is a spiral galaxy located in the southern constellation of Piscis Austrinus. It was discovered by English astronomer John Herschel on July 29, 1834. This is a nearby Seyfert (active) galaxy, located at a distance of approximately 54.6 megalight-years from the Milky Way. Since it appears to have detached spiral arm segments, it was listed in Halton Arp's Atlas of Peculiar Galaxies.

<span class="mw-page-title-main">Arp 87</span> Pair of interacting galaxies in the constellation Leo

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<span class="mw-page-title-main">NGC 383</span> Radio galaxy in the constellation Pisces

NGC 383 is a double radio galaxy with a quasar-like appearance located in the constellation Pisces. It is listed in Halton C. Arp's 1966 "The Arp Atlas of Peculiar Galaxies." Recent discoveries by the National Radio Astronomy Observatory in 2006 reveal that NGC 383 is being bisected by high energy relativistic jets traveling at relatively high fractions of the speed of light. The relativistic electrons in the jets are detected as synchrotron radiation in the x-ray and radio wavelengths. The focus of this intense energy is the galactic center of NGC 383. The relativistic electron jets detected as synchrotron radiation extend for several thousand parsecs and then appear to dissipate at the ends in the form of streamers or filaments.

<span class="mw-page-title-main">NGC 2608</span> Galaxy in the constellation Cancer

NGC 2608 is a barred spiral galaxy located 93 million light-years away in the constellation Cancer. It is 62,000 light-years across, and about 60% of the width of the Milky Way. It is considered a grand design spiral galaxy and is classified as SB(s)b, meaning that the galaxy's arms wind moderately around the prominent central bar.

<span class="mw-page-title-main">NGC 3432</span> Galaxy in the constellation Leo Minor

NGC 3432 is an edge-on spiral galaxy that can be found in the northern constellation of Leo Minor. It was discovered by German-British astronomer William Herschel on March 19, 1787. This galaxy is located at a distance of 40 million light-years (12.3 Mpc) from the Milky Way. It is interacting with UGC 5983, a nearby dwarf galaxy, and features tidal filaments and intense star formation. Because of these features, it was listed in Halton Arp's Atlas of Peculiar Galaxies.

<span class="mw-page-title-main">NGC 5579</span> Spiral galaxy in the constellation Boötes

NGC 5579 is an intermediate spiral galaxy in the northern constellation of Boötes. It was discovered on May 1, 1785) by German-British astronomer William Herschel. The galaxy is located at a distance of 179 ± 14 million light-years (54.9 ± 4.3 Mpc) from the Milky Way, and is receding with a heliocentric radial velocity of 3,608 km/s. It is entry 69 in Halton Arp's Atlas of Peculiar Galaxies.

<span class="mw-page-title-main">NGC 14</span> Irregular galaxy in the constellation Pegasus

NGC 14 is an irregular galaxy in the Pegasus constellation. It was included in Halton Arp's Atlas of Peculiar Galaxies, under the section "Galaxies with the appearance of fission," since the irregular appearance of this galaxy causes it to look like it is coming apart. It was discovered on September 18, 1786, by William Herschel.

<span class="mw-page-title-main">NGC 1023</span> Galaxy in the constellation Perseus

NGC 1023, also known as the Perseus Lenticular Galaxy, is a barred lenticular galaxy, a member of the NGC 1023 group of galaxies in the Local Supercluster. Distance measurements vary from 9.3 to 19.7 million parsecs (30 to 64 million light-years). The supermassive black hole at the core has a mass of (4.4±0.5)×107 M. The black hole was discovered by analyzing the dynamics of the galaxy.

<span class="mw-page-title-main">Arp 273</span> Pair of interacting galaxies in the constellation Andromeda

Arp 273 is a pair of interacting galaxies, 300 million light years away in the constellation Andromeda. It was first described in the Atlas of Peculiar Galaxies, compiled by Halton Arp in 1966. The larger of the spiral galaxies, known as UGC 1810, is about five times more massive than the smaller galaxy. It has a disc that is tidally distorted into a rose-like shape by the gravitational pull of the companion galaxy below it, known as UGC 1813. The smaller galaxy shows distinct signs of active star formation at its nucleus, and "it is thought that the smaller galaxy has actually passed through the larger one."

<span class="mw-page-title-main">NGC 5566</span> Galaxy in the constellation Virgo

NGC 5566 is a barred spiral galaxy in the constellation Virgo, which is approximately 66 million light years away from Earth. The galaxy is the biggest in the constellation Virgo, stretching nearly 150,000 light years in diameter. The galaxy NGC 5566 was discovered on 30 April 1786 by the German-British astronomer William Herschel. It is included in Halton Arp's Atlas of Peculiar Galaxies. It is a member of the NGC 5566 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.

<span class="mw-page-title-main">Arp 7</span> Spiral Galaxy in the constellation of Hydra

Arp 7 is a spiral galaxy in the constellation Hydra. Redshift-independent measurements of its distance vary widely, from 5.9 Mpc to 83.7 Mpc. Its morphological classification is SB(rs)bc, meaning it is a barred spiral galaxy with some ring-like structure.

<span class="mw-page-title-main">NGC 2857</span> Spiral galaxy in the constellation Ursa Major

NGC 2857 is a spiral galaxy in the constellation Ursa Major. It was discovered on January 9, 1856, by R. J. Mitchell.

<span class="mw-page-title-main">NGC 191</span> Galaxy in the constellation Cetus

NGC 191 is a spiral galaxy located in the constellation Cetus. It was discovered on November 28, 1785, by William Herschel.

<span class="mw-page-title-main">NGC 341</span> Galaxy in the constellation Cetus

NGC 341 is a spiral galaxy in the constellation Cetus. It was discovered on October 21, 1881 by Édouard Stephan. It was described by Dreyer as "faint, pretty large, round, a little brighter middle, mottled but not resolved." It has a companion galaxy, PGC 3627, which is sometimes called NGC 341B. For this, reason, it has been included in Halton Arp's Atlas of Peculiar Galaxies.

<span class="mw-page-title-main">NGC 507</span> Galaxy in the constellation Pisces

NGC 507, also known as Arp 229, CGCG 502-67, MCG 5-4-44, PGC 5098, UGC 938, and V V 207, is a lenticular galaxy in the constellation Pisces. It was described as being "very faint", "pretty large", "round", "brighter in the middle", and "south of NGC 508" by John Dreyer in the New General Catalogue. The two galaxies are a part of the Atlas of Peculiar Galaxies, where NGC 507 is described as "Circular or near circular rings of small density difference."

<span class="mw-page-title-main">NGC 7603</span> Galaxy in the constellation of Pisces

NGC 7603 is a spiral Seyfert galaxy in the constellation Pisces. It is listed in the Atlas of Peculiar Galaxies. It is interacting with the smaller elliptical galaxy PGC 71041 nearby.

<span class="mw-page-title-main">NGC 497</span> Galaxy in the constellation Cetus

NGC 497 is a barred spiral galaxy approximately 336 million light-years away from Earth in the constellation of Cetus. It was discovered by French astronomer Édouard Stephan on November 6, 1882.

<span class="mw-page-title-main">NGC 5279</span> Galaxy in the constellation Ursa Major

NGC 5279 is a spiral galaxy in the constellation Ursa Major. It was discovered by German-British astronomer William Herschel in 1789. NGC 5279 is in gravitational interaction with the galaxy NGC 5278. This pair of galaxies appears in Halton Arp's Atlas of Peculiar Galaxies under the designation Arp 239. The luminosity class of NGC 5279 is I1. NGC 5279 is a galaxy whose core shines in the ultraviolet region. It is listed in the Markarian catalog under the designation Mrk 271.

<span class="mw-page-title-main">NGC 3799</span> Galaxy in the constellation Leo

NGC 3799 is a barred spiral galaxy located in the constellation Leo. Its speed relative to the cosmic microwave background is 3,659 ± 24 km/s, which corresponds to a Hubble distance of 54.0 ± 3.8 Mpc. NGC 3799 was discovered by British astronomer John Herschel in 1832.

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 0169. Retrieved 2016-09-02.
  2. "New General Catalog Objects: NGC 150–199". Cseligman. Retrieved September 2, 2016.
  3. Arp, Halton (1966). Atlas of Peculiar Galaxies. Pasadena, California: California Institute of Technology . Retrieved 5 Jan 2010. (webpage includes PDF link)