NGC 721

Last updated
NGC 721
NGC 721 PanS.jpg
Pan-STARRS image of NGC 721
Observation data (J2000 epoch)
Constellation Andromeda
Right ascension 01h 54m 45.45687s [1]
Declination +39° 23′ 00.7702″ [1]
Redshift 0.018566 [2]
Helio radial velocity 5514 km/s [2]
Distance 182.6  Mly (55.98  Mpc) [3]
Apparent magnitude  (B)13.8 [2]
Characteristics
Type SB(rs)bc [4]
Other designations
UGC 1376, MCG 06-05-043, PGC 7097 [2]

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. [5] [6] [7]

See also

Related Research Articles

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<span class="mw-page-title-main">NGC 540</span> Lenticular galaxy in the constellation Cetus

NGC 540 is a barred lenticular galaxy in the constellation Cetus. It is estimated to be 451 million light years from the Milky Way and has a diameter of approximately 120,000 light years. The object was discovered on October 15, 1885 by the American astronomer Francis Preserved Leavenworth.

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NGC 995 is a lenticular galaxy located in the constellation Andromeda about 178 million light years from the Milky Way. It was discovered by the French astronomer Édouard Stephan in 1871.

<span class="mw-page-title-main">NGC 820</span> Spiral galaxy in the constellation Aries

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<span class="mw-page-title-main">NGC 830</span> 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> 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 530</span> Lenticular galaxy in the constellation Cetus

NGC 530, also known as IC 106, is a lenticular galaxy in the constellation Cetus. It is approximately 226 million light years from the Milky Way and has a diameter of around 100,000 light years. The object was discovered on November 20, 1886 by the American astronomer Lewis A. Swift, who listed it as NGC 530, and rediscovered on November 16, 1887 by Guillaume Bigourdan, who listed it as IC 106.

<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 913</span> Lenticular galaxy in the constellation Andromeda

NGC 913 is a lenticular galaxy located in the constellation Andromeda about 224 million light years from the Milky Way. It was discovered by French astronomer Édouard Stephan in 1878.

<span class="mw-page-title-main">NGC 782</span> 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 938</span> 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> 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> 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 606</span> Galaxy in the constellation Pisces

NGC 606 is a barred spiral galaxy located in the Pisces constellation about 470 million light-years from the Milky Way. It was discovered by the French astronomer Édouard Stephan in 1881.

<span class="mw-page-title-main">NGC 608</span> Galaxy in the constellation Triangulum

NGC 608 is a lenticular galaxy in the constellation Triangulum. It is estimated to be about 230 million light-years from the Milky Way. It has a diameter of approximately 130,000 light-years. NGC 608 was discovered on November 22, 1827, by astronomer John Herschel.

<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 862</span> Elliptical galaxy in the constellation Phoenix

NGC 862 is an elliptical galaxy located in the constellation of Phoenix about 241 million light years from the Milky Way. It was discovered by the British astronomer John Herschel in 1834.

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 "NGC 721". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-05-20.
  3. ↑ 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. ↑ "Results for object NGC 0721 (NGC 721)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-05-24.
  5. ↑ Ford, Dominic. "The galaxy NGC 721 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-04-09.
  6. ↑ "Revised NGC Data for NGC 721". spider.seds.org. Retrieved 2020-04-09.
  7. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-04-09.


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