NGC 1669

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Galaxy
NGC 1669
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NGC 1669 [1]
NGC 1669
AladinLite
Constellation Swordfish
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 04 h 42 m 59.90 s
declination -65 ° 48 ′ 51.6 ″
Appearance
Morphological type Sa?  
Brightness  (visual) 14.0 mag
Brightness  (B-band) 14.9 mag
Angular expansion 0.8 ′ × 0.4 ′
Position angle 97 °
Surface brightness 12.6 mag / arcmin²
Physical data
Redshift 0.018776 ± 0.000067  
Radial velocity 5629 ± 20 km / s  
Stroke distance
v rad  / H 0 		(243 ± 17)  ·  10 6  ly
(74.6 ± 5.2)  Mpc 
history
discovery John Herschel
Discovery date December 20, 1835
Catalog names
NGC  1669 • PGC  15871 • ESO  084-038 • 2MASX  J04425988-6548517 • SGC  044248-6554.4 • GALEX ASC J044259.72-654851.3 • LDCE 321 NED003 • WISEA J044259.95-654851.5

NGC 1669 is a spiral galaxy of Hubble type Sa in the constellation Dorado at the southern sky . It is estimated to be 243 million light years from the Milky Way and about 60,000 light years in diameter.

The object was discovered by John Herschel on December 20, 1835 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e f SEDS : NGC 1669
  4. ↑ Seligman