NGC 7619

Last updated
NGC 7619
NGC7619 - SDSS DR14.jpg
SDSS image of NGC 7619
Observation data (J2000 epoch)
Constellation Pegasus
Right ascension 23h 17m 14.524s [1]
Declination +08° 12 22.63 [1]
Redshift 0.01324 [1]
Helio radial velocity 3,944 km/s [1]
Apparent magnitude  (B)12.7 [1]
Characteristics
Type E2 [1]
Other designations
UGC 12523, MCG +01-59-052, PGC 71121 [1]

NGC 7619 is an elliptical galaxy located in the constellation Pegasus. [2] NGC 7619 and NGC 7626 [3] are the dominant and brightest members of the Pegasus galaxy cluster. [4] Both of them were discovered by William Herschel on September 26, 1785. [5]

The radial velocity of this galaxy was measured in 1929 and found to be double that of any galaxy observed at that time. [6] The measurement was consistent with the extrapolated value predicted by Edwin Hubble; a distance-velocity relation that would later become known as Hubble's Law. [7]

In 1970, a type Ia supernova was detected within NGC 7619; it was subsequently designated SN 1970J. [8]

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<span class="mw-page-title-main">NGC 4639</span> Galaxy in the constellation Virgo

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NGC 4102 is an intermediate barred spiral galaxy located in the northern constellation of Ursa Major. It is visible in a small telescope and has an apparent visual magnitude of 11.2. The galaxy was discovered April 12, 1789 by William Herschel. J. L. E. Dreyer described it as "bright, pretty small, round, brighter middle and bright nucleus". This galaxy is located at a distance of 60 million light years and is receding with a heliocentric radial velocity of 837 km/s. It is a member of the Ursa Major group of galaxies.

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<span class="mw-page-title-main">NGC 3021</span> Galaxy in the constellation Leo Minor

NGC 3021 is a spiral galaxy in the northern constellation of Leo Minor. It is about 93 million light-years away from Earth, and is receding with a heliocentric radial velocity of 1,537±4 km/s. This galaxy was discovered December 7, 1785 by Anglo-German astronomer William Herschel. The morphological classification of NGC 3021 is SA(rs)bc, which indicates a spiral galaxy with no central bar (SA), an incomplete inner ring structure (rs), and moderate to loosely wound spiral arms (bc).

<span class="mw-page-title-main">NGC 4388</span> Galaxy in the constellation Virgo

NGC 4388 is an active spiral galaxy in the equatorial constellation of Virgo. It was discovered April 17, 1784 by Wilhelm Herschel. This galaxy is located at a distance of 57 million light years and is receding with a radial velocity of 2,524 km/s. It is one of the brightest galaxies of the Virgo Cluster due to its luminous nucleus. NGC 4388 is located 1.3° to the west of the cluster center, which translates to a projected distance of ≈400 kpc.

<span class="mw-page-title-main">NGC 4424</span> Spiral galaxy in the constellation Virgo

NGC 4424 is a spiral galaxy located in the equatorial constellation of Virgo. It was discovered February 27, 1865 by German astronomer Heinrich Louis d'Arrest. This galaxy is located at a distance of 13.5 million light years and is receding with a heliocentric radial velocity of 442 km/s. It has a morphological class of SB(s)a, which normally indicates a spiral galaxy with a barred structure (SB), no inner ring feature (s), and tightly-wound spiral arms (a). The galactic plane is inclined at an angle of 62° to the line of sight from the Earth. It is a likely member of the Virgo Cluster of galaxies.

<span class="mw-page-title-main">NGC 6753</span> Galaxy in the constellation Pavo

NGC 6753 is a massive unbarred spiral galaxy, seen almost exactly face-on, in the southern constellation of Pavo. It was discovered by the English astronomer John Herschel on July 5, 1836. The galaxy is located at a distance of 142 million light years from the Milky Way, and is receding with a heliocentric radial velocity of 3,140 km/s. It does not display any indications of a recent interaction with another galaxy or cluster.

<span class="mw-page-title-main">NGC 4242</span> Galaxy in constellation Canes Venatici

NGC 4242 is a spiral galaxy in the northern constellation of Canes Venatici. The galaxy is about 18 million light years away. It was discovered on 10 April 1788 by William Herschel, and it was described as "very faint, considerably large, irregular, round, very gradually brighter in the middle, resolvable" by John Louis Emil Dreyer, the compiler of the New General Catalogue.

<span class="mw-page-title-main">NGC 7469</span> Galaxy located in the constellation Pegasus

NGC 7469 is an intermediate spiral galaxy in the constellation of Pegasus. NGC 7469 is located about 200 million light-years away from Earth, which means, given its apparent dimensions, that NGC 7469 is approximately 90,000 light-years across. It was discovered by William Herschel on November 12, 1784.

<span class="mw-page-title-main">NGC 918</span> Barred spiral galaxy in the constellation Aries

NGC 918 is a barred spiral galaxy in the constellation Aries about 67 million light years from the Milky Way. It was discovered by John Herschel on Jan 11, 1831.

<span class="mw-page-title-main">NGC 1325</span> Galaxy in the constellation Eridanus

NGC 1325 is a flocculent spiral galaxy situated in the constellation of Eridanus. Located about 75 million light years away, it is a member of the Eridanus cluster of galaxies, a cluster of about 200 galaxies. It was discovered by William Herschel on 19 December 1799.

<span class="mw-page-title-main">NGC 7457</span> Galaxy in the constellation Pegasus

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References

  1. 1 2 3 4 5 6 7 "NGC 7619". Simbad. Université de Strasbourg/CNRS. Retrieved 2021-02-10.
  2. Hodge, Paul W. (1961-07-01). "The Gravitattional Stability of the NGC 7619 Group of Galaxies". The Astrophysical Journal . 134: 262. Bibcode:1961ApJ...134..262H. doi: 10.1086/147151 . Retrieved 2020-09-27.
  3. Randall, S. W.; Jones, C.; Kraft, R.; Forman, W. R.; Sullivan, E. (April 2009). "Merging Cold Fronts In The Galaxy Pair NGC 7619 AND NGC 7626". The Astrophysical Journal . 696 (2): 1431–1440. arXiv: 0811.1217 . Bibcode:2009ApJ...696.1431R. doi: 10.1088/0004-637X/696/2/1431 . S2CID   14950971.
  4. Edson, J. B.; Zwicky, F. (1941). "Remarks on the Pegasus Cluster of Nebulae". Proceedings of the National Academy of Sciences. 27 (8): 366–369. Bibcode:1941PNAS...27..366E. doi: 10.1073/pnas.27.8.366 . PMC   1078341 . PMID   16588471.
  5. Seligman, Courtney. "New General Catalogue objects: NGC 7600 - 7649". cseligman.com. Retrieved 2021-02-10.
  6. Humason, Milton L. (March 15, 1929). "The Large Radial Velocity of N.G.C. 7619". PNAS . 15 (3): 167–168. Bibcode:1929PNAS...15..167H. doi: 10.1073/pnas.15.3.167 . PMC   522426 . PMID   16577159.
  7. Hubble, E.P. (1929). "A Clue to the Structure of the Universe". Leaflet of the Astronomical Society of the Pacific. 1 (23): 93. Bibcode:1929ASPL....1...93H.
  8. "SN 1970J". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2021-02-10.