NGC 3115

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Galaxy
NGC 3115
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Superimposition of an image in the optical spectral range of the Very Large Telescope with an image in the X-ray range of the Chandra Space Telescope
Superimposition of an image in the optical spectral range of the Very Large Telescope with an image in the X-ray range of the Chandra Space Telescope
AladinLite
Constellation sextant
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 10 h 05 m 14.0 s
declination -07 ° 43 ′ 07 ″
Appearance
Morphological type S0- / PAS  
Brightness  (visual) 9.1 mag
Brightness  (B-band) 10.1 mag
Angular expansion 7.2 ′ × 3.2 ′
Position angle 43 °
Surface brightness 12.3 mag / arcmin²
Physical data
Affiliation NGC 3115 group  
Redshift 0.002212 ± 0.000013  
Radial velocity 6 (63 ± 4) km / s  
Stroke distance
v rad  / H 0 		(22 ± 2)  x  10 6  ly
(6.75 ± 0.48)  Mpc 
history
discovery Wilhelm Herschel
Discovery date February 22, 1787
Catalog names
NGC  3115 • UGC  A 199 • PGC  29265 • MCG  -01-26-018 • 2MASX  J10051397-0743068 • GC  2008 • H  I 163 • h  3223 • USGC S146 NED02 • GIN 775

NGC 3115 is a lenticular galaxy of the Hubble type S0 in the constellation Sextant south of the ecliptic . It is an estimated 22 million light years away from the Milky Way and has a diameter of about 60,000 ly. The center of the galaxy is home to an extremely massive black hole of about two billion solar masses, with a total mass between 300 and 400 billion solar masses.

NGC 3115 is sometimes called the spindle galaxy , not to be confused with Messier 102, which is also called.

The object was discovered on February 22, 1787 by the German-British astronomer Wilhelm Herschel .

Web links

Commons : NGC 3115  - collection of images, videos, and audio files

Individual evidence

  1. ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e f SEDS : NGC 3115
  3. ↑ Klaus-Peter Schröder in: Stars and Space March 2012 p. 78f
  4. ↑ Stars and Space March 2015 p. 63
  5. ↑ Seligman