NGC 4781

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Galaxy
NGC 4781
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High-resolution image of part of the spiral galaxy NGC 4781, created using the Hubble Space Telescope
High-resolution image of part of the spiral galaxy NGC 4781, created using the Hubble Space Telescope
AladinLite
Constellation Virgin
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 12 h 54 m 23.7 s
declination -10 ° 32 ′ 14 ″
Appearance
Morphological type SB (rs) d / HII  
Brightness  (visual) 11.1 mag
Brightness  (B-band) 11.8 mag
Angular expansion 3.4 ′ × 1.4 ′
Position angle 120 °
Surface brightness 12.6 mag / arcmin²
Physical data
Affiliation NGC 4699 group
NGC 4594 group
LGG 307  
Redshift 0.004203 ± 0.000007  
Radial velocity (1260 ± 2) km / s  
Stroke distance
v rad  / H 0
(52 ± 4)  ·  10 6  ly
(15.8 ± 1.1)  Mpc 
history
discovery William Herschel
Discovery date March 25, 1786
Catalog names
NGC  4781 • PGC  43902 • MCG  -02-33-049 • IRAS  12517-1015 • 2MASX  J12542374-1032139 • GC  3292 • H  I 134 • Holm 483A • HIPASS  J1254-10a • LDCE 904 NED275

NGC 4781 is a bar-spiral galaxy with extensive star formation areas of the Hubble type SBcd in the constellation Virgo on the ecliptic . It is estimated to be 52 million light-years from the Milky Way and about 60,000 light-years across. Together with NGC 4784 , it forms the galaxy pair Holm 483 .
The galaxies NGC 4757 , NGC 4760 , NGC 4766 , NGC 4790 are located in the same area of ​​the sky .

The object was discovered by Wilhelm Herschel on March 25, 1786 .

Web links

Individual evidence

  1. a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : NGC 4781
  3. ^ VizieR
  4. Seligman