NGC 4019

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Galaxy
NGC 4019 / IC 755
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Photo from the Hubble Space Telescope
Photo from the Hubble Space Telescope
AladinLite
Constellation Berenike's hair
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 12 h 01 m 10.420 s
declination + 14 ° 06 ′ 15.50 ″
Appearance
Morphological type SBb? / sp  
Brightness  (visual) 13.2 mag
Brightness  (B-band) 14.0 mag
Angular expansion 2.40 ′ × 0.3 ′
Position angle 145 °
Surface brightness 12.7 mag / arcmin²
Physical data
Affiliation NGC 4486 group
LGG 289  
Redshift 0.005083 ± 0.000010  
Radial velocity 1524 ± 3 km / s  
Stroke distance
v rad  / H 0
(65 ± 5)  x  10 6  ly
(20 ± 1.4)  Mpc 
history
discovery John Herschel
Discovery date April 23, 1832
Catalog names
NGC  4019 • IC  755 • UGC  7001 • PGC  37912 • CGCG  069-024 • MCG  + 02-31-014 • IRAS  11585 + 1423 • KUG  1158 + 143A • 2MASX  J12011038 + 1406162 • EVCC 76 • HIPASS J1201 + 14 • NSA 140612 • WISEA J120110.44 + 140615.7

NGC 4019 = IC 755 is a bar-spiral galaxy of the Hubble type SBb in the constellation Haar der Berenike in the northern sky . It is an estimated 65 million light years away from the Milky Way and about 45,000 light years in diameter. Together with 95 other galaxies, it forms the NGC 4486 group ( LGG 289 ).
The galaxies NGC 3996 and NGC 4037 are located in the same area of ​​the sky .

The type II supernova SN 1999an was observed here.

The object was discovered in 1832 by astronomer John Herschel using an 18.7-inch telescope. The entry in the Index Catalog refers to an observation of presumably the same galaxy by Lewis Swift .

Web links

Individual evidence

  1. a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : IC 755
  3. ^ VizieR
  4. Simbad
  5. Seligman