NGC 1557

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Open star cluster
NGC 1557
NGC 1557 DSS.jpg
AladinLite
Constellation Little water snake
Position
equinox : J2000.0
Right ascension 04 h 13 m 11.2 s
declination -50 ° 09 ′ 52 ″
Appearance

Angular expansion 10 '
Number of stars 10-15
Physical data

distance  3400 ly
(1055 pc )
history
Discovered by John Herschel
Discovery time November 24, 1834
Catalog names
 NGC  1520 •  ESO  ESO 55 - ** 15 •  GC  841 •  h  2633 •

NGC 1557 is a group of stars near HD 27346 in the constellation Hydrus in the southern sky .

The object was discovered on November 24, 1834 by John Herschel .

Individual evidence

  1. NASA / IPAC EXTRAGALACTIC DATABASE
  2. SEDS : NGC 1557
  3. AL Tadross: A catalog of 120 NGC open star cluster . In: Journal of the Korean Astronomical Society , 44, 2011, pp. 1-11. doi: 10.5303 / JKAS.2011.44.1.1 .
  4. Seligman