NGC 7250

Last updated
NGC 7250
A matter of distance NGC 7250.jpg
NGC 7250 imaged by the Hubble Space Telescope [1]
Observation data (J2000 epoch)
Constellation Lacerta [1]
Right ascension 22h 18m 17.776s [2]
Declination +40° 33′ 44.66″ [2]
Redshift 0.0039 [3]
Heliocentric radial velocity 1,168 km/s [3]
Distance 49.99 ± 14.37  Mly (15.328 ± 4.407  Mpc) [4]
Apparent magnitude  (V)12.58 [3]
Apparent magnitude  (B)13.22 [3]
Characteristics
Type Irr
Mass 4.7×108 [5]   M☉
Size~42,300  ly (12.97  kpc) (estimated) [4]
Apparent size  (V)1.7′ × 0.8′ [4]
Other designations
PGC  68535, UGC  11980, MCG+07-45-024, Mrk  907, Z 530-22

NGC 7250 is an irregular galaxy located in the Lacerta constellation. It is a blue-colored galaxy with bright bursts of star formation: its star-forming rate is more than an order of magnitude greater than that of the Milky Way. [5] It was discovered by German-British astronomer William Herschel on 8 November 1790. [6]

Contents

The brighter star located in front of the galaxy is named TYC 3203-450-1, and is barely studied. It is about a million times closer to Earth than it the galaxy itself. [7]

Supernova

One supernova has been observed in NGC 7250. SN 2013dy (Type Ia, mag. 17) was discovered by the Lick Observatory Supernova Search (LOSS) on 10 July 2013. [8] [9] It was detected about 2.4 hours after the explosion, making it the earliest-known detection of a supernova at the time. [10]

See also

References

  1. 1 2 "A matter of distance". www.spacetelescope.org. Retrieved 24 April 2017.
  2. 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.
  3. 1 2 3 4 "NGC 7250". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 24 April 2017.
  4. 1 2 3 "NED results for object NGC 7250". National Aeronautics and Space Administration / Infrared Processing and Analysis Center . Retrieved 24 April 2017.
  5. 1 2 Pan, Y.-C.; Foley, R. J.; Kromer, M.; Fox, O. D.; Zheng, W.; Challis, P.; Clubb, K. I.; Filippenko, A. V.; Folatelli, G.; Graham, M. L.; Hillebrandt, W.; Kirshner, R. P.; Lee, W. H.; Pakmor, R.; Patat, F.; Phillips, M. M.; Pignata, G.; Röpke, F.; Seitenzahl, I.; Silverman, J. M.; Simon, J. D.; Sternberg, A.; Stritzinger, M. D.; Taubenberger, S.; Vinko, J.; Wheeler, J. C. (2015). "500 days of SN 2013dy: Spectra and photometry from the ultraviolet to the infrared". Monthly Notices of the Royal Astronomical Society. 452 (4): 4307. arXiv: 1504.02396 . Bibcode:2015MNRAS.452.4307P. doi: 10.1093/mnras/stv1605 . S2CID   119304628.
  6. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 7250". Celestial Atlas. Retrieved 22 August 2025.
  7. ↑ Hille, Karl (2017-04-28). "Hubble's Bright Shining Lizard Star". NASA. Retrieved 2017-04-30.
  8. ↑ Casper, C.; Zheng, W.; Li, W.; Filippenko, A. V.; Cenko, S. B.; Ciabattari, F.; Elenin, L.; Molotov, I.; Balam, D. D.; Graham, M. L.; Hsiao, E. Y.; Zhang, J. -J.; Wang, X. -F.; Clubb, K. I.; Fox, O. D.; Kelley, P. L.; Silverman, J. M. (2013). "Supernova 2013dy in NGC 7250 = PSN J22181760+4034096". Central Bureau Electronic Telegrams (3588): 1. Bibcode:2013CBET.3588....1C.
  9. ↑ "SN 2013dy". Transient Name Server. IAU . Retrieved 21 August 2025.
  10. ↑ Zheng, Weikang; Silverman, Jeffrey M.; Filippenko, Alexei V.; Kasen, Daniel; Nugent, Peter E.; Graham, Melissa; Wang, Xiaofeng; Valenti, Stefano; Ciabattari, Fabrizio; Kelly, Patrick L.; Fox, Ori D.; Shivvers, Isaac; Clubb, Kelsey I.; Cenko, S. Bradley; Balam, Dave; Howell, D. Andrew; Hsiao, Eric; Li, Weidong; Howie Marion, G.; Sand, David; Vinko, Jozsef; Wheeler, J. Craig; Zhang, Jujia (2013). "THE VERY YOUNG TYPE Ia SUPERNOVA 2013dy: DISCOVERY, AND STRONG CARBON ABSORPTION IN EARLY-TIME SPECTRA". The Astrophysical Journal. 778 (1): L15. arXiv: 1310.5188 . Bibcode:2013ApJ...778L..15Z. doi:10.1088/2041-8205/778/1/L15. S2CID   118352094.



This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.