V725 Sagittarii

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V725 Sagittarii
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Sagittarius
Right ascension 18h 11m 56s[1]
Declination −36° 06′ 24″[1]
Characteristics
Variable type semiregular variable
Other designations
V725 Sgr
Database references
SIMBAD data

V725 Sagittarii (V725 Sgr) is a semiregular pulsating variable star in the constellation of Sagittarius.[1] As recently as a century ago, it was a Population II Cepheid; its transformation was documented by Henrietta Swope beginning in 1937, and is one of the most exciting and instructive events in variable-star astronomy.[2][3]

References[edit]

  1. ^ a b c V* V725 Sgr -- Variable Star, database entry, SIMBAD. Accessed on line August 22, 2008.
  2. ^ Swope, H. 1937, Harvard College Observatory Annals, 105, 26, 499
  3. ^ Demers, S. 1973, Journal of the Royal Astronomical Society of Canada, 67, 19.

External links[edit]