X Sagittarii

From Wikipedia, the free encyclopedia
Jump to: navigation, search


3 Sagittarii
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Sagittarius
Right ascension 17h 47m 33.62432s
Declination −27° 49′ 50.8330″
Apparent magnitude (V) 4.56
Spectral type F7II
Other designations
3 Sgr, CD−27 11930, CPD−27 5764, FK5 1464,HD 161592, HIP 87072, HR 6616,SAO 185755
Database references
SIMBAD data

X Sagittarii is a Cepheid variable star in the constellation Sagittarius.

This variable star changes in apparent magnitude from +4.24 to +4.84 with a period of 7.01 days. Its change in brightness is accompanied by a change in spectral classification, from G2 to F5.

Co-ordinates (Equinox 2000)[edit]