NGC 821

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NGC 821
NGC 821 PanS.jpg
Pan-STARRS image of NGC 821
Observation data (J2000 epoch)
Constellation Aries
Right ascension 02h 08m 21.150s [1]
Declination +10° 59′ 41.53″ [1]
Redshift 0.005814 [2]
Helio radial velocity 1738 km/s [2]
Distance 75.8  Mly (23.23  Mpc) [3]
Apparent magnitude  (V)11.31 [2]
Apparent magnitude  (B)12.21 [2]
Characteristics
Type E6 [2]
Other designations
UGC 1631, MCG +02-06-034, PGC 8160 [2]

NGC 821 is an elliptical galaxy in the constellation Aries. It is estimated to be about 80 million light-years from the Milky Way [3] and has a diameter of approximately 55,000 light years. NGC 821 was discovered on September 4, 1786, by astronomer Wilhelm Herschel. [4] [5] [6]

Contents

See also

Related Research Articles

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<span class="mw-page-title-main">NGC 2998</span> Spiral galaxy in the constellation Ursa Major

NGC 2998 is a barred spiral galaxy located in the constellation Ursa Major. It is 195 million light-years away from the Earth. It is an intermediate spiral galaxy. Its stellar mass is about that of the Milky Way.

<span class="mw-page-title-main">NGC 834</span> Spiral galaxy in the constellation Andromeda

NGC 834 is a spiral galaxy located in the Andromeda constellation. It is estimated to be 160 million light-years away from the Milky Way galaxy and has a diameter of about 65,000 light-years. The object was discovered on September 21, 1786 by the astronomer William Herschel.

<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 701</span> Galaxy in the constellation Cetus

NGC 701 is a spiral galaxy with a high star formation rate in the constellation Cetus. It is estimated to be 86 million light years from the Milky Way and has a diameter of approximately 65,000 light years. The object was discovered on January 10, 1785 by the German-British astronomer William Herschel.

<span class="mw-page-title-main">NGC 960</span> Spiral galaxy in the constellation Cetus

NGC 960 is a spiral galaxy in the constellation Cetus. The galaxy was discovered in 1886 by Francis Preserved Leavenworth.

<span class="mw-page-title-main">NGC 850</span> Lenticular galaxy in the constellation Cetus

NGC 850 is a lenticular galaxy in the constellation Cetus. It is estimated to be 300 million light-years from the Milky Way and has a diameter of approximately 130,000 ly.

<span class="mw-page-title-main">NGC 910</span> Elliptical galaxy in the constellation Andromeda

NGC 910 is an elliptical galaxy in the constellation of Andromeda. NGC 910 was discovered on October 17, 1786 by the German-British astronomer William Herschel. It is the brightest galaxy in the cluster Abell 347.

<span class="mw-page-title-main">NGC 812</span> Spiral galaxy in the constellation Andromeda

NGC 812 is a spiral galaxy located in the Andromeda constellation, an estimated 175 million light-years from the Milky Way. NGC 812 was discovered on December 11, 1876 by astronomer Édouard Stephan.

<span class="mw-page-title-main">NGC 911</span> Galaxy in the constellation Andromeda

NGC 911 is an elliptical galaxy located in the constellation Andromeda about 258 million light years from the Milky Way. It was discovered by French astronomer Édouard Stephan in 1878. It is a member of the galaxy cluster Abell 347.

<span class="mw-page-title-main">NGC 941</span> Spiral galaxy in the constellation Triangulum

NGC 941 is an intermediate spiral galaxy in the constellation Triangulum. It is an estimated 55 million light-years from the Milky Way and has a diameter of approximately 55,000 light years. The galaxies NGC 926, NGC 934, NGC 936, NGC 955 are located in the same sky area. NGC 941 was discovered by the astronomer William Herschel using on 6 January 1785.

<span class="mw-page-title-main">NGC 768</span> Barred spiral galaxy in the constellation Cetus

NGC 768 is a barred spiral galaxy located in the constellation Cetus about 314 million light years from the Milky Way. It was discovered by the American astronomer Lewis Swift in 1885.

<span class="mw-page-title-main">NGC 769</span> Spiral galaxy in the constellation Triangulum

NGC 769 is a spiral galaxy located in the constellation Triangulum about 197 million light years from the Milky Way. It was discovered by the American astronomer Truman Safford in 1866.

<span class="mw-page-title-main">NGC 644</span> Galaxy in the constellation of Phoenix

NGC 644 is a barred spiral galaxy in the constellation Phoenix in the southern sky. It is estimated to be 270 million light-years from the Milky Way and has a diameter of approximately 130,000 light-years. Together with NGC 641, it probably forms a gravitationally bound pair of galaxies. The object was discovered on September 5, 1834 by John Herschel.

<span class="mw-page-title-main">NGC 645</span> Galaxy in the constellation Perseus

NGC 645 is a barred spiral galaxy in the constellation Pisces. It is estimated to be 112 million light-years from the Milky Way and has a diameter of approximately 115,000 light years. The object was discovered on October 27, 1864 by astronomer Albert Marth.

<span class="mw-page-title-main">NGC 532</span> Spiral galaxy in the constellation Pisces

NGC 532 is a spiral galaxy in the constellation Pisces. The galaxy is approximately 100 million light-years away from the Earth, and was discovered on September 21st 1786 by the German-British astronomer William Herschel.

<span class="mw-page-title-main">NGC 624</span>

NGC 624 is a barred spiral galaxy in the constellation of Cetus, which is about 264 million light years from the Milky Way. It was discovered on November 28, 1785, by the German-British astronomer William Herschel.

<span class="mw-page-title-main">NGC 636</span> Elliptical galaxy in the constellation Cetus

NGC 636 is an elliptical galaxy in the Cetus constellation. It is located about 96 million light-years from the Milky Way. It was discovered by the German–British astronomer William Herschel in 1785.

<span class="mw-page-title-main">NGC 3902</span> Spiral galaxy in the constellation Leo

NGC 3902 is an intermediate spiral galaxy in the constellation Leo. It was discovered on April 6, 1785, by William Herschel and observed on February 19, 1827, by John Herschel. It is estimated to be 180 to 185 million light-years away, and its redshift-independent distance estimates to about 185 to 240 million light-years. It is around 75,000 light-years in diameter.

References

  1. 1 2 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN   0004-6256. S2CID   18913331.
  2. 1 2 3 4 5 6 "NGC 821". 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 821 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-28.
  5. ↑ "Revised NGC Data for NGC 821". spider.seds.org. Retrieved 2020-03-28.
  6. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-03-28.


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