NGC 6331

Last updated
NGC 6331
NGC6331 - SDSS DR14.jpg
SDSS image of NGC 6331
Observation data
Constellation Ursa Minor
Right ascension 255.9 degrees
Declination 78.62 degrees
Redshift 0.053614 0.00150
Heliocentric radial velocity 17,570 km/s
Distance 737 Mly (226 Mpc)
Group or cluster Abell 2256
Apparent magnitude  (V)14.4
Characteristics
Type E
Size345,000 ly
Other designations
PGC 84830, 2MASX J17033591+7837435, SDSS J170335.88+783744.0, NSA 167203, WBL 631-001, CGCG 355-024, MCG +013-12-015

NGC 6331 is a type E [1] elliptical galaxy located in the Ursa Minor constellation. [2] [1] It is located 737 million light-years from the Solar System [3] and was discovered by German-British astronomer William Herschel on December 20, 1797, utilizing an 18.7-inch f/13 spectrum telescope [4] but also observed by Guillaume Bigourdan. [5]

With an approximate diameter of 345,000 light-years, NGC 6331 is well considered one of the largest galaxies. [3] It is the brightest group member of Abell 2256 and first in 6' string to the east, making up of 6 galaxies. [6] NGC 6331 also makes up a part of the galactic triplet CGCG 355-024 [7] which comprises two other elliptical galaxies in the cluster, CGCG 355-024 NED03 (PGC 59513) [8] and CGCG 355-024 NED01 (PGC 84827). [9]

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NGC 2603 is a small compact spiral galaxy located 787 million light-years away in the constellation of Ursa Major from the solar system. It was discovered by George Johnstone Stoney, an Irish astronomer, on February 9th, 1850. NGC 2603 has an estimated diameter of 81,000 thousand light-years. It contains a narrow-line active galactic nucleus. The Hyperleda database associates NGC 2603 and NGC 2606 as one single galaxy. NASA/IPAC database on the other hand, classifies NGC 2603 as galaxy PGC 3133653.

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<span class="mw-page-title-main">IC 3246</span> Galaxy in the constellation Virgo

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<span class="mw-page-title-main">IC 2431</span> Interacting galaxies in the constellation Cancer

IC 2431 are a group of interacting galaxies in the constellation of Cancer. They are located 684 million light-years away from the Solar System and were discovered on February 24, 1896, by Stephane Javelle.

<span class="mw-page-title-main">IC 1166</span> Pair of galaxies in Corona Borealis

IC 1166 are a pair of galaxies in the Corona Borealis constellation comprising IC 1166 NED01 and IC 1166 NED02. They are located 977 million light-years from the Solar System and were discovered on July 28, 1892, by Stephane Javelle.

<span class="mw-page-title-main">IC 2759</span> Elliptical galaxy in the constellation of Leo

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<span class="mw-page-title-main">NGC 7222</span> Large barred spiral galaxy with a ring structure

NGC 7222 is a large barred spiral galaxy with a ring structure, located in the constellation Aquarius. It is located 570 million light-years away from the Solar System and was discovered by German astronomer, Albert Marth on August 11, 1864.

<span class="mw-page-title-main">NGC 5098</span> Binary pair of distant galaxies in Canes Venatici constellation

NGC 5098 are a binary pair of distant galaxies located in Canes Venatici constellation. They are made up of one Type E elliptical galaxy, PGC 46529 or NGC 5098 NED01 located east and one Type ES-0 lenticular galaxy, PGC 46515 or NGC 5098 NED02 located west. Both galaxies are located 559 million light-years away from the Solar System and were discovered on April 29, 1827, by John Herschel.

References

  1. 1 2 "Revised NGC Data for NGC 6331". spider.seds.org. Retrieved 2024-04-26.
  2. "NGC 6331 - Elliptical Galaxy in Ursa Minor | TheSkyLive.com". theskylive.com. Retrieved 2024-04-26.
  3. 1 2 "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-26.
  4. "DOCdb - NGC 6331". www.docdb.net. Retrieved 2024-04-26.
  5. "New General Catalog Objects: NGC 6300 - 6349". cseligman.com. Retrieved 2024-04-26.
  6. "NGC/IC Project Restoration Efforts". ngcicproject.observers.org. Retrieved 2024-04-26.
  7. "NED Search Results of CGCG 355-024". ned.ipac.caltech.edu. Retrieved 2024-04-26.
  8. "NED Search Results for CGCG355-024 NED03". ned.ipac.caltech.edu. Retrieved 2024-04-26.
  9. "NED Search Results for CGCG 355-024 NED01". ned.ipac.caltech.edu. Retrieved 2024-04-26.