NGC 3521

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NGC 3521
Ngc3521-hst-R814GB450.jpg
NGC 3521 HST
Observation data (J2000 epoch)
Constellation Leo
Right ascension 11h 05m 48.593s [1]
Declination –00° 02 09.24 [1]
Redshift 0.002672 [2]
Heliocentric radial velocity 801 [3] km/s
Distance 26.2 Mly (8.03 [4] Mpc)
Apparent magnitude  (V)11.0 [2]
Characteristics
Type SAB(rs)bc [3]
Apparent size  (V)11′.0 × 5′.1 [2]
Notable featuresHII LINER
Other designations
UGC 6150, Bubble Galaxy, PGC 33550

NGC 3521 is a flocculent [4] intermediate spiral galaxy located around 26 [4] million light-years away from Earth in the constellation Leo. It has a morphological classification of SAB(rs)bc, [3] which indicates that it is a spiral galaxy with a trace of a bar structure (SAB), a weak inner ring (rs), and moderate to loosely wound arm structure (bc). [5] The bar structure is difficult to discern, both because it has a low ellipticity and the galaxy is at a high inclination [3] of 72.7° to the line of sight. [4] The relatively bright bulge is nearly 3/4 the size of the bar, which may indicate the former is quite massive. [3] The nucleus of this galaxy is classified as an HII LINER, [6] as there is an H II region at the core and the nucleus forms a low-ionization nuclear emission-line region.

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<span class="mw-page-title-main">NGC 2903</span> Spiral galaxy in the constellation Leo

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<span class="mw-page-title-main">NGC 4639</span> Galaxy in the constellation Virgo

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<span class="mw-page-title-main">NGC 1808</span> Galaxy in the constellation Columba

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<span class="mw-page-title-main">NGC 5962</span> Galaxy in the constellation Serpens

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<span class="mw-page-title-main">NGC 6503</span> Spiral galaxy in the constellation Draco

NGC 6503 is a field dwarf spiral galaxy in the northern constellation of Draco. It was discovered by German astronomer Arthur von Auwers on July 22, 1854. The galaxy has an angular size of 7.1′ × 2.4′ and an apparent visual magnitude of 10.2. It is located at a distance of approximately 20.9 million light-years (6.40 Mpc) from the Milky Way galaxy. NGC 6503 may form the remote tip of a long chain of galaxies that extends out into the local void, forming a galaxy filament spanning 26 million light-years (8 Mpc).

<span class="mw-page-title-main">NGC 6384</span> Galaxy in the constellation of Ophiucus

NGC 6384 is an intermediate barred spiral galaxy located about 77 million light-years away in the northern part of the constellation Ophiuchus. It was discovered on 10 June 1863 by German-British astronomer Albert Marth.

<span class="mw-page-title-main">NGC 4030</span> Spiral galaxy in the constellation Virgo

NGC 4030 is a grand design spiral galaxy located about 64 million light years away in the constellation Virgo. It is a member of the NGC 4030 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster. With an apparent visual magnitude of 10.6, it is visible with a small telescope as a 3 arc minute wide feature about 4.75° to the southeast of the star Beta Virginis. It is inclined by an angle of 47.1° to the line of sight from the Earth and is receding at a velocity of 1,465 km/s.

<span class="mw-page-title-main">NGC 4535</span> Spiral galaxy in the constellation Virgo

NGC 4535 is a barred spiral galaxy located some 54 million light years from Earth in the constellation Virgo. It is a member of the Virgo Cluster of galaxies and is located 4.3° from Messier 87. The galactic plane of NGC 4535 is inclined by an angle of 43° to the line of sight from the Earth. The morphological classification of NGC 4535 in the De Vaucouleurs system is SAB(s)c, which indicates a bar structure across the core (SAB), no ring (s), and loosely wound spiral arms (c). The inner part of the galaxy has two spiral arms, which branch into multiple arms further away. The small nucleus is of type HII, meaning the spectrum resembles that of an H II region.

<span class="mw-page-title-main">NGC 4102</span> Galaxy in the constellation Ursa Major

NGC 4102 is an intermediate barred spiral galaxy located in the northern constellation of Ursa Major. It is visible in a small telescope and has an apparent visual magnitude of 11.2. The galaxy was discovered April 12, 1789 by William Herschel. J. L. E. Dreyer described it as "bright, pretty small, round, brighter middle and bright nucleus". This galaxy is located at a distance of 60 million light years and is receding with a heliocentric radial velocity of 837 km/s. It is a member of the Ursa Major group of galaxies.

<span class="mw-page-title-main">NGC 157</span> Galaxy in the constellation Cetus

NGC 157 is an intermediate spiral galaxy in the constellation of Cetus, positioned about 4° east of the star Iota Ceti. This galaxy can be viewed from suburban skies using a moderate-sized telescope. It was discovered on December 13, 1783 by William Herschel. The compiler of the New General Catalogue, John Louis Emil Dreyer noted that NGC 157 was "pretty bright, large, extended, between 2 considerably bright stars". It is a relatively isolated galaxy; the nearest other galaxy of comparable luminosity lies at a separation of 4.2 Mly (1.3 Mpc).

<span class="mw-page-title-main">NGC 4178</span> Galaxy in the constellation Virgo

NGC 4178 is the New General Catalogue identifier for a barred spiral galaxy in the equatorial constellation of Virgo. It was discovered April 11, 1825 by English astronomer John Herschel. Located some 43.8 million light years away, this galaxy spans 2.3 × 0.4 arc minutes and is seen at a low angle, being inclined by 77° to the line of sight from the Earth. The morphological classification of NGC 4178 is SB(rs)dm, indicating that it has a bar feature at the core, and, per the '(rs)', has traces of a ring-like structure surrounding the bar. The 'dm' suffix indicates the spiral arms are diffuse, broken, and irregular in appearance with no bulge at the nucleus. This galaxy is a member of the Virgo Cluster, which is the richest nearby group of galaxies outside the Local Group and forms the core of the Virgo Supercluster.

<span class="mw-page-title-main">NGC 2681</span> Galaxy in the constellation Ursa Major

NGC 2681 is a lenticular galaxy in the constellation Ursa Major. The galaxy lies 50 million light years away from Earth, which means, given its apparent dimensions, that NGC 2681 is approximately 55,000 light years across. NGC 2681 has an active galactic nucleus and it is a type 3 Seyfert galaxy. Its nucleus is also a low-ionization nuclear emission-line region.

<span class="mw-page-title-main">NGC 1266</span> Galaxy in the constellation Eridanus

NGC 1266 is a lenticular galaxy in the constellation Eridanus. Although not currently starbursting, it has undergone a period of intense star formation in the recent past, ceasing only ≈500 Myr ago. The galaxy is host to an obscured active galactic nucleus.

<span class="mw-page-title-main">NGC 4561</span> Galaxy in the constellation Coma Berenices

NGC 4561 is a barred spiral galaxy in the constellation Coma Berenices. It was discovered by German-British astronomer William Herschel on April 13, 1784. This galaxy is located at a distance of 82 ± 14 million light-years (25.2 ± 4.3 Mpc) from the Milky Way, and is a member of the Virgo Cluster of galaxies. It is 13th magnitude with an angular size of 1.5′.

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 "NASA/IPAC Extragalactic Database". Results for NGC 3521. Retrieved 2006-10-24.
  3. 1 2 3 4 5 Mao, Rui-Qing; et al. (December 2010), "An Extragalactic 12CO J = 3-2 Survey with the Heinrich Hertz Telescope", The Astrophysical Journal, 724 (2): 1336–1356, arXiv: 1009.4906 , Bibcode:2010ApJ...724.1336M, doi:10.1088/0004-637X/724/2/1336, S2CID   118390123.
  4. 1 2 3 4 Liu, Guilin; et al. (July 2011), "The Super-linear Slope of the Spatially Resolved Star Formation Law in NGC 3521 and NGC 5194 (M51a)", The Astrophysical Journal, 735 (1): 63, arXiv: 1104.4122 , Bibcode:2011ApJ...735...63L, doi:10.1088/0004-637X/735/1/63, S2CID   119199965.
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  6. Das, Mousumi; et al. (December 2003), "Central Mass Concentration and Bar Dissolution in Nearby Spiral Galaxies", The Astrophysical Journal, 582 (1): 190–195, arXiv: astro-ph/0208467 , Bibcode:2003ApJ...582..190D, doi:10.1086/344480, S2CID   18713107.