Astronomy:NGC 6503

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Short description: Spiral galaxy in the constellation Draco

Coordinates: Sky map 17h 49.4m 00s, +70° 09′ 00″

NGC 6503
NGC 6503 (2015-06-10).jpg
Hubble Space Telescope's Advanced Camera for Surveys displays the NGC 6503's swirling spiral arms.[1]
Observation data (J2000 epoch)
ConstellationDraco
Right ascension 17h 49m 26.4207s[2]
Declination+70° 08′ 39.587″[2]
Redshift0.000143[3]
Helio radial velocity43 ± 3 km/s[3]
Distance13.05 ± 0.33 Mly (4.0 ± 0.1 Mpc)[4]
Apparent magnitude (V)10.2[5]
Characteristics
TypeSA(s)cd[4]
Apparent size (V)7.1′ × 2.4′[4]
Other designations
LEDA 60921, TC 575, Z 340-19, IRAS 17499+7009, 2MASX J17492651+7008396, UGC 11012, IRAS F17499+7009, MCG+12-17-009, [SLK2000] 86, ISOSS J17493+7009, PSCz Q17499+7009, WN B1750+7009, [SLK2004] 1401, K73 837, Z 1749.9+7010[3]

NGC 6503 is a field[6] dwarf spiral galaxy located at the edge of a region of space called the Local Void. The dwarf galaxy spans 30,000 light-years and lies approximately 17 million light-years away in the constellation of Draco (the Dragon). The spiral galaxy is especially colorful where bright red regions of gas can be seen scattered through its spiral arms. Bright blue regions contain stars that are forming. Dark brown dust areas are in the galaxy's arms and center.[7]

NGC 6503 has one known satellite galaxy, known as KK 242. With a stellar mass of about 3 million solar masses, KK 242 is on the border between a dwarf irregular galaxy (dIrr) and a dwarf spheroidal galaxy (dSph).[8]

Gallery

References

  1. ↑ "NGC 6503". http://www.spacetelescope.org/images/heic1513a/. 
  2. ↑ 2.0 2.1 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  3. ↑ 3.0 3.1 3.2 "SIMBAD Astronomical Database". Results for NGC 6503. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=ngc+6503. 
  4. ↑ 4.0 4.1 4.2 Blanc, Guillermo A.; Weinzirl, Tim; Song, Mimi; Heiderman, Amanda; Gebhardt, Karl; Jogee, Shardha; Evans, Neal J.; Van Den Bosch, Remco C. E. 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. doi:10.1088/0004-6256/145/5/138. Bibcode: 2013AJ....145..138B. 
  5. ↑ "The Interactive NGC Catalog Online". Results for NGC 6503. http://spider.seds.org/ngc/ngc.cgi?NGC+6503. 
  6. ↑ 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. 
  7. ↑ "HubbleSite - NewsCenter - Lonely Galaxy 'Lost in Space' (06/10/2015) - Introduction". http://hubblesite.org/newscenter/archive/releases/2015/23/. 
  8. ↑ Karachentsev, Igor D.; Cannon, John M.; Fuson, Jackson; Inoue, John L.; Tully, R. Brent; Anand, Gagandeep S.; Kaisin, Serafim S. (2022). "KK 242, A Faint Companion to the Isolated SCD Galaxy NGC 6503". The Astronomical Journal 163 (2): 51. doi:10.3847/1538-3881/ac3cbe. Bibcode: 2022AJ....163...51K. 

External links




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