PGC 214021

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Galaxy
LEDA / PGC 214021
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LEDA 214021, NGC 4640 & LEDA 42737 [1] SDSS mount
LEDA 214021, NGC 4640 & LEDA 42737 SDSS Recording
AladinLite
Constellation Virgin
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 12 h 43 m 01.5 s
declination + 12 ° 17 ′ 07 ″
Appearance
Morphological type S0  
Brightness  (visual) 16.2 mag
Brightness  (B-band) 17.2 mag
Angular expansion 0.20 ′ × 0.1 ′
Position angle 85 °
Surface brightness 11.8 mag / arcmin²
Physical data
Redshift 0.067218 ± 0.000160  
Radial velocity 20,151 ± 48 km / s  
Stroke distance
v rad  / H 0 		(898 ± 63)  ·  10 6  Lj
(275.4 ± 19.3)  Mpc 
history
Catalog names
NGC  4640B  • PGC  214021 • 2MASX  J12430150 + 1217062 • GALEX ASC J124301.40 + 121707.9 • 2MASS J12430153 + 1217066 • ASK 408946.0 • HOLM 446B

LEDA / PGC 214021 (also NGC 4640B ) is a lens-shaped galaxy of the Hubble type S0 in the constellation Virgo on the ecliptic . It is an estimated 898 million light years away from the Milky Way and about 55,000 light years in diameter. Together with NGC 4640 , it forms the optical galaxy pair Holm 446 .
In the same area of ​​the sky are u. a. the galaxies NGC 4640 , NGC 4641 , IC 3663 , IC 3710 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e SEDS : PGC 214021