NGC 6261

Last updated
NGC 6261
NGC6261 - SDSS DR14.jpg
NGC 6261 imaged by Sloan Digital Sky Survey
Observation data
Constellation Hercules
Right ascension 254.127 degrees
Declination 27.97 degrees
Redshift 0.035184
Heliocentric radial velocity 10,601 km/s
Distance 471.4 Mly (144.53 Mpc)
Apparent magnitude  (V)14.5
Surface brightness 28.5 mag/arcsec
Characteristics
Type S0/a
Size200,000 ly
Other designations
PGC 59286, UGC 10617, MCG +05-40-006, CGCG 169-013, 2MASX J16563054+2758392, SDSS J165630.51+275839.0, UZC J165630.6+275839, NSA 070084, NVSS J165630+275838, LEDA 59286

NGC 6261 is a lenticular galaxy in the constellation of Hercules. [1] [2] It is located 470 million light-years away from the Solar System and has an approximate diameter of 200,000 light-years. [3]

Contents

NGC 6261 was discovered on July 13, 1880, by French astronomer Edouard Stephan. [4] The galaxy is described as LINER according to SIMBAD database [5] and presents emission spectrum in its nucleus which is categorized by broad lines of weak ionized atoms.

Supernovae

Two supernovae have been discovered in NGC 6261: SN 2007hu and SN 2008dt.

SN 2007hu

SN 2007hu [6] was discovered on September 9, 2007, by astronomers Ernesto Guido, A. Sehgal and Tim Puckett. [7] It had a magnitude of 17.7 and was located 1".3 west and 1".4 north of the nucleus. The supernova was Type la. [6]

SN 2008dt

SN 2008dt [8] was discovered on 30 June, 2008, [9] by astronomers D. Madison, W. Li and A.V. Filippenko at the University of California, Berkeley. [10] It had a magnitude of 17.2 and was located 1".0 east and 5.5" south of the nucleus. [11] The supernova was Type la. [8]

See also

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<span class="mw-page-title-main">IC 4588</span> Galaxy in the constellation Serpens

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References

  1. ↑ Astronomy, Go. "NGC 6261 | galaxy in Hercules | NGC List | GO ASTRONOMY". Go-Astronomy.com. Retrieved 2024-04-27.
  2. ↑ "NGC 6261 - Lenticular Galaxy in Hercules | TheSkyLive.com". theskylive.com. Retrieved 2024-04-27.
  3. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-27.
  4. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 6261". Celestial Atlas. Retrieved 28 August 2024.
  5. ↑ "NGC 6261". simbad.u-strasbg.fr. Retrieved 2024-04-27.
  6. 1 2 "SN 2007hu | Transient Name Server". www.wis-tns.org. Retrieved 2024-04-27.
  7. ↑ "Bright Supernovae - 2007". www.rochesterastronomy.org. Retrieved 2024-04-27.
  8. 1 2 "SN 2008dt | Transient Name Server". www.wis-tns.org. Retrieved 2024-04-27.
  9. ↑ "SN 2008dt - Home". www.astrosurf.com. Retrieved 2024-04-27.
  10. ↑ Madison, D.; Li, W.; Filippenko, A. V. (2008-07-01). "Supernovae 2008dt and 2008du". Central Bureau Electronic Telegrams. 1423: 1. Bibcode:2008CBET.1423....1M.
  11. ↑ "Bright Supernovae - 2008". www.rochesterastronomy.org. Retrieved 2024-04-27.
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