Spiral galaxy in the constellation Draco
NGC 6503 is afield [ 8] dwarf spiral galaxy [dubious discuss in the northernconstellation ofDraco . It was discovered by German astronomerArthur von Auwers on July 22, 1854.[ 5] angular size of′ × 2.4′ [ 7] apparent visual magnitude of 10.2.[ 5] light years away from theMilky Way galaxy.[ 4] Local Void , forming agalaxy filament spanning 26 millionlight-years (8 Mpc ).[ 9]
Thegalactic plane of this galaxy isinclined at an angle of± 3°plane of the sky ,[ 4] major axis of its oval profile being aligned along aposition angle of 121°.[ 10] morphological classification of NGC 6502 is SAB:(s)bc. This indicates abarred spiral galaxy (SAB:) with no inner ring structure (s) and moderately woundspiral arms (bc). However, the ':' notation indicates some uncertainty about the classification. Older works gave it a class of SA(s)bc; i.e. no bar.[ 6]
A possible bar system has been reported viainfrared observations , being viewed end-on from the perspective of the Earth.[ 11] [ 12] Ultraviolet observations show a young, innerstar forming ring encircling the bar.[ 12] [ 13] [ 14] LINER -type orSeyfert 2 nucleus.[ 12]
NGC 6503 has one knownsatellite galaxy ,[ 15] solar masses , KK 242 is on the border between a dwarfirregular galaxy (dIrr) and adwarf spheroidal galaxy (dSph).[ 16]
^ "NGC 6503" .space telescope.org . NASA/ESA. Retrieved11 June 2015 .^a b 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 Gaia DR2 record for this source atVizieR .^a b "NGC 6503" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2010-11-29 .^a b c d Kourkchi, Ehsan; et al. (October 23, 2020)."Cosmicflows-4: The Catalog of ∼10,000 Tully–Fisher Distances" .The Astrophysical Journal .902 (2): 145.arXiv :2009.00733 Bibcode :2020ApJ...902..145K .doi :10.3847/1538-4357/abb66b ISSN 1538-4357 . ^a b c O'Meara, Stephen James (2007).Hidden Treasures ISBN 978-1-139-46373-7 ^a b Buta, Ronald J.; et al. (2015). "A Classical Morphological Analysis of Galaxies in the Spitzer Survey of Stellar Structure in Galaxies (S4G)".The Astrophysical Journal Supplement Series .217 (2): 32.arXiv :1501.00454 Bibcode :2015ApJS..217...32B .doi :10.1088/0067-0049/217/2/32 .S2CID 119202943 . ^a b Blanc, Guillermo A.; et al. (2013). "The Virus-P Exploration of Nearby Galaxies (Venga): Survey Design, Data Processing, and Spectral Analysis Methods".The Astronomical Journal .145 (5): 138.arXiv :1303.1552 Bibcode :2013AJ....145..138B .doi :10.1088/0004-6256/145/5/138 .S2CID 119109864 . ^ Materne, J. (April 1979). "The structure of nearby groups of galaxies - Quantitative membership probabilities".Astronomy and Astrophysics .74 (2):235– 243.Bibcode :1979A&A....74..235M . ^ Karachentseva, Valentina E.; et al. (October 2023). "The M 101 galaxy group as a node in a nearby cosmic filament".Astronomy & Astrophysics .678 . id. A16.arXiv :2308.01897 Bibcode :2023A&A...678A..16K .doi :10.1051/0004-6361/202347085 . ^ Bottema, Roelof; Gerritsen, Jeroen P. E. (October 1997)."An investigation of the structure and kinematics of the spiral galaxy NGC 6503" .Monthly Notices of the Royal Astronomical Society .290 (4):585– 597.arXiv :astro-ph/9704190 doi :10.1093/mnras/290.4.585 ^ Kuzio de Naray, Rachel; et al. (December 2012)."Searching for non-axisymmetries in NGC 6503: a weak end-on bar" .Monthly Notices of the Royal Astronomical Society .427 (3):2523– 2536.arXiv :1209.4653 Bibcode :2012MNRAS.427.2523K .doi :10.1111/j.1365-2966.2012.22126.x ^a b c Freeland, E.; Chomiuk, L.; Keenan, R.; Nelson, T. (March 2010). "Evidence for a Strong End-On Bar in the Ringed σ-Drop Galaxy NGC 6503".The Astronomical Journal .139 (3):865– 870.arXiv :0912.0247 Bibcode :2010AJ....139..865F .doi :10.1088/0004-6256/139/3/865 . ^ Gouliermis, Dimitrios A.; et al. (October 2015)."Hierarchical star formation across the ring galaxy NGC 6503" .Monthly Notices of the Royal Astronomical Society .452 (4):3508– 3528.arXiv :1506.03928 Bibcode :2015MNRAS.452.3508G .doi :10.1093/mnras/stv1325 ^ Greisen, Eric W.; et al. (June 2009). "Aperture Synthesis Observations of the Nearby Spiral NGC 6503: Modeling the Thin and Thick H I Disks".The Astronomical Journal .137 (6):4718– 4733.arXiv :0902.0989 Bibcode :2009AJ....137.4718G .doi :10.1088/0004-6256/137/6/4718 . ^ Koda, Jin; et al. (April 2015). "Discovery of New Dwarf Galaxy Near the Isolated Spiral Galaxy NGC 6503".The Astrophysical Journal Letters .802 (2). id. L24.arXiv :1504.00674 Bibcode :2015ApJ...802L..24K .doi :10.1088/2041-8205/802/2/L24 . ^ Karachentsev, Igor D.; et al. (2022)."KK 242, A Faint Companion to the Isolated SCD Galaxy NGC 6503" .The Astronomical Journal .163 (2): 51.arXiv :2111.14691 Bibcode :2022AJ....163...51K .doi :10.3847/1538-3881/ac3cbe S2CID 244714422 . Wikimedia Commons has media related to
NGC 6503 .
6001 to 6100 6101 to 6200 6201 to 6300 6301 to 6400 6401 to 6500 6501 to 6600 6601 to 6700 6701 to 6800 6801 to 6900 6901 to 7000
.jpg)
