Psi Scorpii

Psi Scorpii

Observation data Epoch J2000      Equinox J2000
Constellation	Scorpius
Right ascension	16^h 11^m 59.98852^s [1]
Declination	−10° 03′ 51.2683″ [1]
Apparent magnitude (V)	4.94 [2]
Characteristics
Spectral type	A3IV [2]
B−V color index	+0.10 [2]
Astrometry
Radial velocity (Rv)	-5.10[3] km/s
Proper motion (μ)	RA: -21.98[1] mas/yr Dec.: -23.74[1] mas/yr
Parallax (π)	20.96 ± 1.36[1] mas
Distance	160 ± 10 ly (48 ± 3 pc)
Absolute magnitude (MV)	1.55 [4]
Other designations
15 Scorpii, FK5 3280, GC 21780, HIP 79375, HR 6031, HD 145570, SAO 141022 [2]
Database references
SIMBAD	data

Psi Scorpii (ψ Sco, ψ Scorpii) is a star in the constellation Scorpius. Psi Scorpii is a white A-type subgiant with an apparent magnitude of +4.94.^[2] It is approximately 156 light years from Earth.^[1]

References

1. van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
2. "Psi Scorpii". SIMBAD Astronomical Database. Retrieved 2015-10-17.
3. Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759–771. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
4. Absolute magnitude calculated as $M = m + 5 (1 + \log_{10}{p})\!\,$, where $M$ is the star's absolute magnitude, $m$ is the star's apparent magnitude, and $p$ is the star's measured parallax in arcseconds.