NGC 838

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NGC 838
NGC 838 -HST-R814G606B435.png
HST image of NGC 838
Observation data (J2000 epoch)
Constellation Cetus
Right ascension 02h 09m 38.562s [1]
Declination −10° 08 46.12 [1]
Redshift 0.01284 [1]
Heliocentric radial velocity 3825 ± 3 km/s [1]
Distance 167.5  Mly (51.37  Mpc) [2]
Apparent magnitude  (V)12.91 [3]
Apparent magnitude  (B)13.53 [3]
Characteristics
Type SA(rs)00 pec: [4]
Other designations
MCG -02-06-033, Mrk 1022, PGC 8250 [1]

NGC 838 is an unbarred lenticular galaxy [4] located at approximately 170 million light-years away in the constellation of Cetus. It is part of the Hickson Compact Group 16. [5]

NGC 838 and other galaxies in this group. From right to left: NGC 833, NGC 835, NGC 838 and NGC 839 NGC 833 NGC 835 NGC 838 NGC 839 legacy dr10.jpg
NGC 838 and other galaxies in this group. From right to left: NGC 833, NGC 835, NGC 838 and NGC 839

Related Research Articles

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<span class="mw-page-title-main">NGC 3344</span> Galaxy in the constellation Leo Minor

NGC 3344 is a relatively isolated barred spiral galaxy located 22.5 million light years away in the constellation Leo Minor. This galaxy belongs to the group known as the Leo spur, which is a branch of the Virgo Supercluster. NGC 3344 has the morphological classification (R)SAB(r)bc, which indicates it is a weakly barred spiral galaxy that exhibits rings and moderate to loosely wound spiral arms. There is both an inner and outer ring, with the prominent arms radiating outward from the inner ring and the slightly elliptical bar being situated inside. At the center of the bar is an HII nucleus with an angular diameter of about 3″. NGC 3344 hosted supernova SN 2012fh, which was shown to likely be a Type Ib or Type Ic.

<span class="mw-page-title-main">NGC 3169</span> Galaxy in the constellation Sextans

NGC 3169 is a spiral galaxy about 75 million light years away in the constellation Sextans. It has the morphological classification SA(s)a pec, which indicates this is a pure, unbarred spiral galaxy with tightly-wound arms and peculiar features. There is an asymmetrical spiral arm and an extended halo around the galaxy. It is a member of the NGC 3166 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 1404</span> Elliptical galaxy in the Fornax Cluster

NGC 1404 is an elliptical galaxy in the Southern constellation Eridanus. It was discovered on November 28, 1837, by the astronomer John Herschel. Based on the tip of the red-giant branch distance indicator, it lies at a distance of approximately 60 million light-years from the Milky Way. It is one of the brightest members of the Fornax Cluster.

<span class="mw-page-title-main">NGC 3271</span> Galaxy in the constellation Antlia

NGC 3271 is a barred lenticular galaxy in the constellation Antlia. At magnitude 11.7, it is the brightest galaxy in the Antlia Cluster, which lies about 40.7 megaparsecs away. It was discovered on May 1, 1834 by the astronomer John Herschel.

<span class="mw-page-title-main">NGC 3268</span> Galaxy in the constellation Antlia

NGC 3268 is an elliptical galaxy in the constellation Antlia. It is a member of the Antlia Cluster, which lies about 40.7 megaparsecs away. It was discovered on April 18, 1835 by the astronomer John Herschel.

<span class="mw-page-title-main">NGC 3269</span> Galaxy in the constellation Antlia

NGC 3269 is a barred spiral or lenticular galaxy in the constellation Antlia. It is a member of the Antlia Cluster, which lies about 40.7 megaparsecs away.

<span class="mw-page-title-main">NGC 3258</span> Galaxy in the constellation Antlia

NGC 3258 is an elliptical galaxy in the constellation Antlia. It is a member of the Antlia Cluster, which lies about 40.7 megaparsecs away. It was discovered on May 2, 1834 by John Herschel.

<span class="mw-page-title-main">NGC 3260</span> Galaxy in the constellation Antlia

NGC 3260 is an elliptical galaxy in the constellation Antlia. It is a member of the Antlia Cluster, which lies about 40.7 megaparsecs away. It was discovered on May 2, 1834 by the astronomer John Herschel.

<span class="mw-page-title-main">NGC 4535</span> Spiral galaxy in the constellation Virgo

NGC 4535 is a barred spiral galaxy located some 54 million light years from Earth in the constellation Virgo. It is a member of the Virgo Cluster of galaxies and is located 4.3° from Messier 87. The galactic plane of NGC 4535 is inclined by an angle of 43° to the line of sight from the Earth. The morphological classification of NGC 4535 in the De Vaucouleurs system is SAB(s)c, which indicates a bar structure across the core (SAB), no ring (s), and loosely wound spiral arms (c). The inner part of the galaxy has two spiral arms, which branch into multiple arms further away. The small nucleus is of type HII, meaning the spectrum resembles that of an H II region.

<span class="mw-page-title-main">Galaxy group</span> Aggregation of galaxies with 50 or fewer members

A galaxy group or group of galaxies (GrG) is an aggregation of galaxies comprising about 50 or fewer gravitationally bound members, each at least as luminous as the Milky Way (about 1010 times the luminosity of the Sun); collections of galaxies larger than groups that are first-order clustering are called galaxy clusters. The groups and clusters of galaxies can themselves be clustered, into superclusters of galaxies.

<span class="mw-page-title-main">NGC 4041</span> Spiral galaxy in the constellation Ursa Major

NGC 4041 is the New General Catalogue identifier for a spiral galaxy in the northern circumpolar constellation of Ursa Major. It is located an estimated 70 million light years from the Sun. The morphological classification of SA(rs)bc indicates this is a spiral galaxy the lacks a bar; the 'rs' means it has a weakly-formed ring structure, and the 'bc' indicates the spiral arms are moderately to loosely wound.

<span class="mw-page-title-main">NGC 4293</span> Galaxy in the constellation Coma Berenices

NGC 4293 is a lenticular galaxy in the northern constellation of Coma Berenices. It was discovered by English astronomer William Herschel on March 14, 1784, who described it as "large, extended, resolvable, 6 or 7′ long". This galaxy is positioned to the north-northwest of the star 11 Comae Berenices and is a member of the Virgo Cluster of galaxies. It is assumed to lie at the same distance as the Virgo Cluster itself: around 54 million light years away. The galaxy spans an apparent area of 5.3 × 3.1 arc minutes.

<span class="mw-page-title-main">NGC 5084</span> Galaxy in the constellation Virgo

NGC 5084 is a lenticular galaxy in the constellation of Virgo. It is located at a distance of about 80 million light years from Earth, which, given its apparent dimensions, means that NGC 5084 is at least 200,000 light years across. It is one of the largest and most massive galaxies in the Virgo Supercluster. William Herschel discovered it on March 10, 1785. It is a member of the NGC 5084 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster. The galaxy is seen nearly edge-on, with inclination 86°, and features a warped disk and large quantities of HI gas extending along the disk, probably accumulated after multiple accretions of smaller galaxies.

<span class="mw-page-title-main">NGC 536</span> Galaxy in the constellation Andromeda

NGC 536 is a barred spiral galaxy located in the constellation Andromeda. It is located at a distance of circa 200 million light-years from Earth, which, given its apparent dimensions, means that NGC 536 is about 180,000 light years across. It was discovered by William Herschel on September 13, 1784. It is a member of Hickson Compact Group 10, which also includes the galaxies NGC 529, NGC 531, and NGC 542. It belongs to the Perseus–Pisces Supercluster.

<span class="mw-page-title-main">NGC 741</span> Formerly active radio galaxy in the constellation of Pisces

NGC 741, also known as PGC 7252, is a formerly active radio galaxy in the constellation of Pisces. Located 74.13 Mpc away, NGC 741 is part of a group of galaxies including NGC 742 and PGC 7250. NGC 741 and NGC 742 recently collided, although the disruption was minor. Radio filaments have been found connecting NGC 741 to NGC 742, and due to the bent structure of the radio filaments, NGC 741 is estimated to be moving at 1400 km/s with respect to its local group, suggesting that ram-pressure stripping was created as a product of the former merger.

<span class="mw-page-title-main">NGC 1386</span> Galaxy in the constellation Eridanus

NGC 1386 is a spiral galaxy located in the constellation Eridanus. It is located at a distance of circa 53 million light years from Earth, which, given its apparent dimensions, means that NGC 1386 is about 50,000 light years across. It is a Seyfert galaxy, the only one in Fornax Cluster.

<span class="mw-page-title-main">NGC 1310</span> Galaxy in the constellation Fornax

NGC 1310 is a barred spiral galaxy located in the southern constellation of Fornax. It was discovered by English astronomer John Herschel on 22 October 1835.

<span class="mw-page-title-main">NGC 531</span> Galaxy in the constellation Andromeda

NGC 531 is a barred spiral galaxy in the constellation Andromeda with a visual magnitude of 10.51. It is a distance of 65.7 Mpc from the Sun. It is a member of the Hickson Compact Group HCG 10, and is interacting with the other members of the group.

<span class="mw-page-title-main">NGC 1570</span> Galaxy in the constellation of Caelum

NGC 1570, mistakenly called NGC 1571, is a faint galaxy located in the southern constellation Caelum, the chisel. It has a blue magnitude of 13.2, making it visible through a medium sized telescope. Based on a redshift of z = 0.014760, the object is estimated to be 198 million light years away from the Local Group. It appears to be receding with a heliocentric radial velocity of 4,392 km/s.

References

  1. 1 2 3 4 5 "NGC 838". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2021-02-19.
  2. Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 790–813. arXiv: astro-ph/0610732 . Bibcode:2007ApJ...655..790C. doi:10.1086/510201. S2CID   11672751.
  3. 1 2 "Search specification: NGC 838". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2021-02-19.
  4. 1 2 "Results for object NGC 0838 (NGC 838)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-02-19.
  5. Turner, M. J. L; Reeves, J. N; Ponman, T. J; Arnaud, M; Barbera, M; Bennie, P. J; Boer, M; Briel, U; Butler, I; Clavel, J; Dhez, P; Cordova, F; Dos Santos, S; Ferrando, P; Ghizzardi, S; Goodall, C. V; Griffiths, R. G; Hochedez, J. F; Holland, A. D; Jansen, F; Kendziorra, E; Lagostina, A; Laine, R; La Palombara, N; Lortholary, M; Mason, K. O; Molendi, S; Pigot, C; Priedhorsky, W; et al. (2000). "XMM-Newton First-Light Observations of the Hickson Galaxy Group 16". Astronomy & Astrophysics. 365: L110–L115. arXiv: astro-ph/0010612 . doi:10.1051/0004-6361:20000070. S2CID   16125513.