NGC 820

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NGC 820
NGC 0820 SDSS.jpg
SDSS image of NGC 820
Observation data (J2000 epoch)
Constellation Aries
Right ascension 02h 08m 24.97482s [1]
Declination +14° 20′ 58.5388″ [1]
Redshift 0.01477 [2]
Helio radial velocity 4395 km/s [2]
Distance 213.5  Mly (65.46  Mpc) [3]
Apparent magnitude  (B)13.7 [2]
Characteristics
Type Sb [2]
Other designations
UGC 1629, MCG +02-06-036, PGC 8165 [2]

NGC 820 is a spiral galaxy located in the constellation Aries about 210 million light-years from the Milky Way. [3] It was discovered by British astronomer John Herschel in 1828. [4] [5] [6] [7]

Contents

See also

Related Research Articles

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NGC 514 is a low-luminosity, intermediate spiral galaxy in the equatorial constellation of Pisces, located at a distance of approximately 83 million light-years from the Milky Way. It was discovered on 16 October 1784 by astronomer William Herschel. The general form of the galaxy is specified by its morphological classification of SAB(rs)c, which indicates it has a weak bar system at the core (SAB), an incomplete ring formation around the bar (rs), and somewhat loosely-wound spiral arms (c). This galaxy has an H II nucleus with an extended region that displays weak emission lines in the optical range, but not in the near infrared. The suspected supermassive black hole at the core has an estimated mass of 3.2×106 M☉.

<span class="mw-page-title-main">NGC 770</span> Elliptical galaxy in the constellation Aries

NGC 770 is an elliptical galaxy in the constellation Aries. It is around 120 million light years from the Milky Way and has a diameter of around 36,000 ly. NGC 770 is gravitationally linked to NGC 772. The galaxy was discovered on November 3, 1855 by RJ Mitchell.

<span class="mw-page-title-main">NGC 801</span> Spiral galaxy in the constellation Andromeda

NGC 801 is a spiral galaxy with an active galaxy core in the constellation Andromeda. It is estimated to be 174 million light-years from the Milky Way and has a diameter of approximately 174,400 light-years. The object was discovered on September 20, 1885 by the American astronomer Lewis A. Swift.

<span class="mw-page-title-main">NGC 830</span> Barred lenticular galaxy in the constellation Cetus

NGC 830 is a barred lenticular galaxy in the constellation Cetus. It is estimated to be about 170 million light-years from the Milky Way and has a diameter of approximately 70,000 light years.

<span class="mw-page-title-main">NGC 840</span> Barred spiral galaxy in the constellation Cetus

NGC 840 is a barred spiral galaxy in the constellation Cetus south of the ecliptic. It is estimated to be about 300 million light-years from the Milky Way and has a diameter of approximately 175,000 ly.

<span class="mw-page-title-main">NGC 900</span> Lenticular galaxy in the constellation Aries

NGC 900 is a lenticular galaxy located in the constellation Aries about 430 million light-years from the Milky Way. It was discovered by the German astronomer Albert Marth in 1864.

<span class="mw-page-title-main">NGC 940</span> Lenticular galaxy in the constellation Triangulum

NGC 940 is a lenticular galaxy in the constellation Triangulum. It is estimated to be 222 million light-years from the Milky Way and has a diameter of approximately 80,000 ly. NGC 940 was discovered by Heinrich d'Arrest.

<span class="mw-page-title-main">NGC 980</span> Lenticular galaxy in the constellation Andromeda

NGC 980 is a lenticular galaxy located in the constellation Andromeda about 256 million light years from the Milky Way. It was discovered by the German - British astronomer William Herschel in 1786.

<span class="mw-page-title-main">NGC 825</span> Spiral galaxy in the constellation Cetus

NGC 825 is an unbarred spiral galaxy in the constellation Cetus, estimated to be 154 million light-years away. The object was discovered by the astronomer Albert Marth on November 18, 1863.

<span class="mw-page-title-main">NGC 912</span> Lenticular galaxy in the constellation Andromeda

NGC 912 is a compact lenticular galaxy located in the constellation Andromeda about 197 million light years from the Milky Way. It was discovered by French astronomer Édouard Stephan in 1878.

<span class="mw-page-title-main">NGC 781</span> Spiral galaxy in the constellation Aries

NGC 781 is a spiral galaxy in the constellation Aries. It is estimated to be about 154 million light years from the Milky Way and has a diameter of approximately 70,000 light years. NGC 781 was discovered on October 16, 1784 by the German-British astronomer William Herschel.

<span class="mw-page-title-main">NGC 782</span> Barred spiral galaxy in the constellation Eridanus

NGC 782 is a barred spiral galaxy located in the constellation Eridanus about 160 million light-years from the Milky Way. It was discovered by British astronomer John Herschel in 1834.

<span class="mw-page-title-main">NGC 998</span> Spiral galaxy in the constellation Cetus

NGC 998 is a spiral galaxy in the constellation Cetus. It is estimated to be 294 million light years from the Milky Way and has a diameter of approximately 90,000 ly. Together with NGC 997, it forms a gravitationally bound pair of galaxies. NGC 998 was discovered by astronomer Albert Marth on 10 November 1863 using a 48-inch telescope.

<span class="mw-page-title-main">NGC 991</span> Intermediate spiral galaxy in the constellation Cetus

NGC 991 is an intermediate spiral galaxy the constellation Cetus. This galaxy was discovered by astronomer William Herschel in 1785.

<span class="mw-page-title-main">NGC 938</span> Elliptical galaxy in the constellation Aries

NGC 938 is an elliptical galaxy located in the constellation Aries, approximately 184 million light years from the Milky Way. It was discovered by the Prussian astronomer Heinrich d'Arrest in 1863.

<span class="mw-page-title-main">NGC 534</span> Lenticular galaxy in the constellation Sculptor

NGC 534 is a lenticular galaxy located in the constellation of Sculptor about 260 million light years from the Milky Way. It was discovered by the British astronomer John Herschel in 1835.

<span class="mw-page-title-main">NGC 822</span> Elliptical galaxy in the constellation Phoenix

NGC 822 is an elliptical galaxy in the constellation Phoenix. It is estimated to be about 233 million light-years from the Milky Way and has a diameter of approximately 80,000 light-years. NGC 822 was discovered on September 5, 1834, by astronomer John Herschel.

<span class="mw-page-title-main">NGC 721</span> Barred Spiral galaxy in the constellation Andromeda

NGC 721 is a barred spiral galaxy located in the constellation Andromeda about 250 million light years from the Milky Way. It was discovered by the Prussian astronomer Heinrich d'Arrest in 1862.

<span class="mw-page-title-main">NGC 713</span> Spiral galaxy in the constellation Cetus

NGC 713 is a spiral galaxy located in the constellation of Cetus about 234 million light years from the Milky Way. It was discovered by the American astronomer Francis Leavenworth in 1886.

<span class="mw-page-title-main">NGC 959</span> Spiral galaxy in the northern constellation of Triangulum

NGC 959 is a spiral galaxy in the northern constellation of Triangulum. It was discovered on November 9, 1876, by French astronomer Édouard Stephan. This galaxy is located at a distance of 36 million light years and is receding with a heliocentric radial velocity of 596 km/s. It is a member of the NGC 1023 Group of galaxies.

References

  1. 1 2 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics . 616. A1. arXiv: 1804.09365 . Bibcode: 2018A&A...616A...1G . doi: 10.1051/0004-6361/201833051 .
  2. 1 2 3 4 5 "NGC 820". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-05-24.
  3. 1 2 Tully, R. Brent; Courtois, Hélène M.; Sorce, Jenny G. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv: 1605.01765 . Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID   250737862. 50.
  4. ↑ Ford, Dominic. "The galaxy NGC 820 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-18.
  5. ↑ Rojas, Sebastián García. "Galaxy NGC 820 - Spiral Galaxy in Aries Constellation". Telescopius. Retrieved 2020-03-18.
  6. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-03-18.
  7. ↑ "Revised NGC Data for NGC 820". spider.seds.org. Retrieved 2020-03-18.


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