NGC 4221

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NGC 4221
NGC4221 - SDSS DR14.jpg
SDSS image of NGC 4221
Observation data (J2000 epoch)
Constellation Draco
Right ascension 12h 15m 59.860s [1]
Declination +66° 13′ 50.90″ [1]
Redshift 0.00439 [2]
Heliocentric radial velocity 1313 ± 3 km/s [2]
Distance 75.9  Mly (23.28  Mpc) [3]
Group or cluster NGC 4256 Group [4]
Apparent magnitude  (B)13.6 [2]
Characteristics
Type (R)SB0+(r) [1]
Size55,900  ly (17.15  kpc) (estimated) [1]
Apparent size  (V)1.347′ × 0.943′ [2]
Other designations
UGC 7288, MCG +11-15-040, PGC 39266 [2]

NGC 4221 is a barred lenticular galaxy located about 75.9 million light-years (23.28 megaparsecs) away [3] in the constellation of Draco. It was discovered on April 3, 1832, by the astronomer John Herschel. [5] NGC 4221 is notable for having an outer ring [6] that surrounds the inner barred central region of the galaxy. [5]

Contents

Group Membership

NGC 4221 is a member of the NGC 4256 Group, [4] [7] [8] which lies in the upper plane of the Virgo Supercluster. [4]

See also

Related Research Articles

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NGC 3981 is an unbarred spiral galaxy located 62 million light-years away in the constellation of Crater. It was discovered on February 7, 1785 by William Herschel.

<span class="mw-page-title-main">NGC 708</span> Galaxy in the constellation Andromeda

NGC 708 is an elliptical galaxy located 240 million light-years away in the constellation Andromeda and was discovered by astronomer William Herschel on September 21, 1786. It is classified as a cD galaxy and is the brightest member of Abell 262. NGC 708 is a weak FR I radio galaxy and is also classified as a type 2 Seyfert galaxy.

<span class="mw-page-title-main">NGC 668</span> Galaxy in constellation Andromeda

NGC 668 is a spiral galaxy located 200 million light-years away in the constellation Andromeda. It was discovered by astronomer Édouard Stephan on December 4, 1880 and is a member of Abell 262.

<span class="mw-page-title-main">NGC 669</span> Galaxy in the constellation Triangulum

NGC 669 is an edge-on spiral galaxy with an active galactic nucleus located 200 million light-years away in the constellation Triangulum. NGC 669 was discovered by astronomer Édouard Stephan on November 28, 1883 and is a member of Abell 262.

<span class="mw-page-title-main">NGC 679</span> Galaxy in the constellation Andromeda

NGC 679 is an elliptical or a lenticular galaxy located 210 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer William Herschel on September 13, 1784 and is a member of Abell 262.

<span class="mw-page-title-main">NGC 687</span> Galaxy in constellation Andromeda

NGC 687 is a lenticular galaxy located 220 million light-years away in the constellation Andromeda. It was discovered by astronomer William Herschel on September 21, 1786 and is a member of Abell 262.

<span class="mw-page-title-main">NGC 703</span> Galaxy in the constellation Andromeda

NGC 703 is a lenticular galaxy located 240 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer William Herschel on September 21, 1786 and is also a member of Abell 262.

<span class="mw-page-title-main">NGC 704</span> Galaxy in the constellation Andromeda

NGC 704 is a lenticular galaxy located 220 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer William Herschel on September 21, 1786 and is also a member of Abell 262.

<span class="mw-page-title-main">NGC 705</span> Galaxy in the constellation Andromeda

NGC 705 is a lenticular galaxy located 240 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer William Herschel on September 21, 1786 and is also a member of Abell 262.

<span class="mw-page-title-main">NGC 710</span> Galaxy in the constellation Andromeda

NGC 710 is a spiral galaxy located 260 million light-years away in the constellation Andromeda. It was discovered by the Irish engineer and astronomer Bindon Blood Stoney on October 28, 1850 and is a member of the galaxy cluster Abell 262.

<span class="mw-page-title-main">NGC 712</span> Galaxy in constellation Andromeda

NGC 712 is a lenticular galaxy located 230 million light-years away in the constellation Andromeda. It was discovered by astronomer John Herschel in October 1828 and is a member of Abell 262.

<span class="mw-page-title-main">NGC 714</span> Galaxy in constellation Andromeda

NGC 714 is a lenticular galaxy located 190 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer Bindon Blood Stoney on October 28, 1850 and is a member of Abell 262.

<span class="mw-page-title-main">NGC 753</span> Galaxy in the constellation Andromeda

NGC 753 is a spiral galaxy located 220 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer by Heinrich d'Arrest on September 16, 1865 and is a member of Abell 262.

<span class="mw-page-title-main">NGC 759</span> Galaxy in the constellation Andromeda

NGC 759 is an elliptical galaxy located 230 million light-years away in the constellation Andromeda. NGC 759 was discovered by astronomer by Heinrich d'Arrest on September 17, 1865. It is a member of Abell 262.

<span class="mw-page-title-main">NGC 973</span> Galaxy in the constellation Triangulum

NGC 973 is a giant spiral galaxy located in the constellation Triangulum. It is located at a distance of circa 200 million light-years from Earth, which, given its apparent dimensions, means that NGC 973 is about 230,000 light years across. It was discovered by Lewis Swift on October 30, 1885.

<span class="mw-page-title-main">NGC 2273</span> Galaxy in the constellation Lynx

NGC 2273 is a barred spiral galaxy located in the constellation Lynx. It is located at a distance of circa 95 million light years from Earth, which, given its apparent dimensions, means that NGC 2273 is about 100,000 light years across. It was discovered by Nils Dunér on September 15, 1867.

<span class="mw-page-title-main">NGC 4513</span> Galaxy in the constellation Draco

NGC 4513 is a lenticular galaxy and a ring galaxy located about 110 million light-years away in the constellation Draco. It was discovered by astronomer Heinrich d'Arrest on October 16, 1866.

<span class="mw-page-title-main">NGC 1241</span> Galaxy in the constellation Eridanus

NGC 1241 is a spiral galaxy located in the constellation Eridanus. It is located at a distance of circa 150 million light years from Earth, which, given its apparent dimensions, means that NGC 1241 is about 140,000 light years across. It was discovered by William Herschel on January 10, 1785. It is classified as a Seyfert galaxy.

<span class="mw-page-title-main">NGC 4324</span> Galaxy in the constellation of Virgo

NGC 4324 is a lenticular galaxy located about 85 million light-years away in the constellation Virgo. It was discovered by astronomer Heinrich d'Arrest on March 4, 1862. NGC 4324 has a stellar mass of 5.62 × 1010M☉, and a baryonic mass of 5.88 × 1010M☉. The galaxy's total mass is around 5.25 × 1011M☉. NGC 4324 is notable for having a ring of star formation surrounding its nucleus. It was considered a member of the Virgo II Groups until 1999, when its distance was recalculated and it was placed in the Virgo W 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 "Results for object NGC 4221 (NGC 4221)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-04-18.
  2. 1 2 3 4 5 "NGC 4221". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2021-04-18.
  3. 1 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.
  4. 1 2 3 Fouque, P.; Gourgoulhon, E.; Chamaraux, P.; Paturel, G. (1992-05-01). "Groups of galaxies within 80 Mpc. II. The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series. 93: 211–233. Bibcode:1992A&AS...93..211F. ISSN   0365-0138.
  5. 1 2 Seligman, Courtney. "New General Catalogue objects: NGC 4200 - 4249". cseligman.com. Retrieved 2021-04-18.
  6. ↑ Buta, Ronald J. (2017-11-01). "Galactic rings revisited - I. CVRHS classifications of 3962 ringed galaxies from the Galaxy Zoo 2 Database". Monthly Notices of the Royal Astronomical Society. 471 (4): 4027–4046. arXiv: 1707.06589 . Bibcode:2017MNRAS.471.4027B. doi:10.1093/mnras/stx1829. ISSN   0035-8711.
  7. ↑ Garcia, A. M. (1993-07-01). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47–90. Bibcode:1993A&AS..100...47G. ISSN   0365-0138.
  8. ↑ Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal. 543 (1): 178–194. arXiv: astro-ph/0001140 . Bibcode:2000ApJ...543..178G. doi: 10.1086/317070 . ISSN   0004-637X. S2CID   9618325.


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