| 词条 | NGC 7606 |
| 释义 |
| name = NGC 7606 | image = N7606s.jpg | image_size = 250px | caption =NGC 7606 by Adam Block/Mount Lemmon SkyCenter | credit = | epoch = J2000 | type = SA(s)b [1] | ra = {{RA|23|19|04.8}}[1] | dec = {{DEC|-08|29|06}}[1] | dist_ly = 98.5 ± 18.8 Mly (30.2 ± 5.8 Mpc)[1] | z = 0.007442 ± 0.000017 [1] | h_radial_v = 2231 ± 5 km/s[1] | appmag_v = 10.8[2] | size_v = 5′.4 × 2′.2[2] | constellation name = Aquarius | notes = | names = MCG -02-59-012, PGC 71047[1] }}NGC 7606 is a spiral galaxy located in the constellation Aquarius. It is located at a distance of circa 100 million light years from Earth, which, given its apparent dimensions, means that NGC 7606 is about 165,000 light years across. It was discovered by William Herschel οn September 28, 1785.[3] The galaxy is included in the Herschel 400 Catalogue. It lies 45 arcminutes northeast from psi2 Aquarii. It can be seen with a 4 inches telescope but its visibility is greatly affected by light pollution.[4] CharacteristicsNGC 7606 is a spiral galaxy seen on inclination. It has a bright nucleus surrounded by a prominent bulge, which is seen elliptical due to the inclination. No bar has been observed.[12] A ring with an apparent diameter of 0.85 arcminutes has been detected at the central part of the galaxy.[5] The galaxy features two main arms, that can be traced for nearly 360°, and several arm fragments.[6] The arms are smooth and rather tight, although not as tightly wound as the ones of NGC 488.[7] Few bright spots have been observed in the arms.[6] The galaxy is found to host a supermassive black hole, whose mass based on bulge velocity dispersion σ is estimated to be 15-22 million {{solar mass|link=yes}}.[8][9] NGC 7606 is an isolated galaxy.[10] Two supernovae have been observed in NGC 7606, SN 1965M (magnitude 16.0), and SN 1987N (type Ia, magnitude 13.8).[11] References1. ^1 2 3 4 5 6 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 7606 | url=http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+7606 | accessdate=2016-01-18 }} 2. ^1 {{cite web |title=Revised NGC Data for NGC 7606 |url=http://spider.seds.org/ngc/revngcic.cgi?NGC7606 |website=spider.seds.org |accessdate=25 November 2018}} 3. ^{{cite web |last1=Seligman |first1=Courtney |title=NGC 7606 (= PGC 71047) |url= http://cseligman.com/text/atlas/ngc76.htm#7606 |website=Celestial Atlas |accessdate=19 November 2018}} 4. ^{{cite book|last1=O'Meara|first1=Steve|title=Steve O'Meara's Herschel 400 observing guide : how to find and explore 400 star clusters, nebulae, and galaxies discovered by William and Caroline Herschel|date=2007|publisher=Cambridge university press|location=Cambridge|isbn=978-0521858939|page=285|url=https://books.google.gr/books?id=Nyh9fAC_tpIC&pg=PA285}} 5. ^{{cite journal |last1=Comerón |first1=S. |last2=Salo |first2=H. |last3=Laurikainen |first3=E. |last4=Knapen |first4=J. H. |last5=Buta |first5=R. J. |last6=Herrera-Endoqui |first6=M. |last7=Laine |first7=J. |last8=Holwerda |first8=B. W. |last9=Sheth |first9=K. |last10=Regan |first10=M. W. |last11=Hinz |first11=J. L. |last12=Muñoz-Mateos |first12=J. C. |last13=Gil de Paz |first13=A. |last14=Menéndez-Delmestre |first14=K. |last15=Seibert |first15=M. |last16=Mizusawa |first16=T. |last17=Kim |first17=T. |last18=Erroz-Ferrer |first18=S. |last19=Gadotti |first19=D. A. |last20=Athanassoula |first20=E. |last21=Bosma |first21=A. |last22=Ho |first22=L. C. |title=ARRAKIS: atlas of resonance rings as known in the S4G |journal=Astronomy & Astrophysics |date=19 February 2014 |volume=562 |pages=A121 |doi=10.1051/0004-6361/201321633}} 6. ^1 2 {{cite journal |last1=Eskridge |first1=Paul B. |last2=Frogel |first2=Jay A. |last3=Pogge |first3=Richard W. |last4=Quillen |first4=Alice C. |last5=Berlind |first5=Andreas A. |last6=Davies |first6=Roger L. |last7=DePoy |first7=D. L. |last8=Gilbert |first8=Karoline M. |last9=Houdashelt |first9=Mark L. |last10=Kuchinski |first10=Leslie E. |last11=Ramirez |first11=Solange V. |last12=Sellgren |first12=K. |last13=Stutz |first13=Amelia |last14=Terndrup |first14=Donald M. |last15=Tiede |first15=Glenn P. |title=Near‐Infrared and Optical Morphology of Spiral Galaxies |journal=The Astrophysical Journal Supplement Series |date=November 2002 |volume=143 |issue=1 |pages=73–111 |doi=10.1086/342340|bibcode=2002ApJS..143...73E |arxiv=astro-ph/0206320 }} 7. ^Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington 8. ^{{cite journal |last1=Ferrarese |first1=Laura |title=Beyond the Bulge: A Fundamental Relation between Supermassive Black Holes and Dark Matter Halos |journal=The Astrophysical Journal |date=10 October 2002 |volume=578 |issue=1 |pages=90–97 |doi=10.1086/342308|bibcode=2002ApJ...578...90F |arxiv=astro-ph/0203469 }} 9. ^{{cite journal |last1=Berrier |first1=Joel C. |last2=Davis |first2=Benjamin L. |last3=Kennefick |first3=Daniel |last4=Kennefick |first4=Julia D. |last5=Seigar |first5=Marc S. |last6=Barrows |first6=Robert Scott |last7=Hartley |first7=Matthew |last8=Shields |first8=Doug |last9=Bentz |first9=Misty C. |last10=Lacy |first10=Claud H. S. |title=FURTHER EVIDENCE FOR A SUPERMASSIVE BLACK HOLE MASS-PITCH ANGLE RELATION |journal=The Astrophysical Journal |date=14 May 2013 |volume=769 |issue=2 |pages=132 |doi=10.1088/0004-637X/769/2/132|bibcode=2013ApJ...769..132B |arxiv=1304.4937 }} 10. ^{{cite journal|last1=Makarov|first1=Dmitry|last2=Karachentsev|first2=Igor|title=Galaxy groups and clouds in the local (z∼ 0.01) Universe|journal=Monthly Notices of the Royal Astronomical Society|date=21 April 2011|volume=412|issue=4|pages=2498–2520|doi=10.1111/j.1365-2966.2010.18071.x|url=http://www.sao.ru/hq/dim/groups/galaxies.dat|bibcode=2011MNRAS.412.2498M|arxiv = 1011.6277 }} 11. ^List of Supernovae IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015. External links{{wikiSky}}{{Ngc80}} 6 : Unbarred spiral galaxies|Aquarius (constellation)|NGC objects|Principal Galaxies Catalogue objects|Astronomical objects discovered in 1785|Discoveries by William Herschel |
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