Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Sagittarius |
Right ascension | 19h 21m 50.89574s [1] |
Declination | −18° 18′ 30.1996″ [1] |
Apparent magnitude (V) | +5.87 [2] |
Characteristics | |
Spectral type | K0 III [3] |
B−V color index | +1.06 [2] |
Astrometry | |
Radial velocity (Rv) | −12.7±2.9 [4] km/s |
Proper motion (μ) |
RA: +102.72
[1]
mas/
yr Dec.: −93.20 [1] mas/ yr |
Parallax (π) | 9.82 ± 0.40 mas [1] |
Distance | 330 ± 10
ly (102 ± 4 pc) |
Absolute magnitude (MV) | +0.80 [5] |
Details | |
Luminosity | 60.4 [6] L☉ |
Temperature | 4,721 [6] K |
Other designations | |
Database references | |
SIMBAD | data |
Rho2 Sagittarii (ρ2 Sagittarii) is a star in the zodiac constellation of Sagittarius. With an apparent visual magnitude of +5.87, [2] it is near the lower limit of stars that can be seen with the naked eye. Based upon an annual parallax shift of 9.82 mas as seen from Earth, [1] it is located around 330 light years from the Sun.
This is an evolved K-type giant star with a stellar classification of K0 III. [3] As a result of a 1997 lunar occultation, a companion star was discovered at an angular separation of 21 mas. It appears to be an A-type main sequence star with a class of around A5. This companion was not detected during prior occultations by the Moon. [8]
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cite web}}
: CS1 maint: postscript (
link)
Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Sagittarius |
Right ascension | 19h 21m 50.89574s [1] |
Declination | −18° 18′ 30.1996″ [1] |
Apparent magnitude (V) | +5.87 [2] |
Characteristics | |
Spectral type | K0 III [3] |
B−V color index | +1.06 [2] |
Astrometry | |
Radial velocity (Rv) | −12.7±2.9 [4] km/s |
Proper motion (μ) |
RA: +102.72
[1]
mas/
yr Dec.: −93.20 [1] mas/ yr |
Parallax (π) | 9.82 ± 0.40 mas [1] |
Distance | 330 ± 10
ly (102 ± 4 pc) |
Absolute magnitude (MV) | +0.80 [5] |
Details | |
Luminosity | 60.4 [6] L☉ |
Temperature | 4,721 [6] K |
Other designations | |
Database references | |
SIMBAD | data |
Rho2 Sagittarii (ρ2 Sagittarii) is a star in the zodiac constellation of Sagittarius. With an apparent visual magnitude of +5.87, [2] it is near the lower limit of stars that can be seen with the naked eye. Based upon an annual parallax shift of 9.82 mas as seen from Earth, [1] it is located around 330 light years from the Sun.
This is an evolved K-type giant star with a stellar classification of K0 III. [3] As a result of a 1997 lunar occultation, a companion star was discovered at an angular separation of 21 mas. It appears to be an A-type main sequence star with a class of around A5. This companion was not detected during prior occultations by the Moon. [8]
{{
cite web}}
: CS1 maint: postscript (
link)