Pi Serpentis

Pi Serpentis

Observation data Epoch J2000      Equinox J2000
Constellation	Serpens
Right ascension	16^h 02^m 17.69166^s [1]
Declination	22° 48′ 16.0302″ [1]
Apparent magnitude (V)	4.82 [2]
Characteristics
Spectral type	A3V [2]
B−V color index	+0.08 [2]
Astrometry
Radial velocity (Rv)	-28.20[3] km/s
Proper motion (μ)	RA: +4.03[1] mas/yr Dec.: +23.60[1] mas/yr
Parallax (π)	18.22 ± 0.26[1] mas
Distance	179 ± 3 ly (54.9 ± 0.8 pc)
Absolute magnitude (MV)	1.12 [4]
Other designations
44 Serpentis, FK5 3268, GC 21552, HIP 78554, HR 5972, HD 143894, SAO 84155 [2]
Database references
SIMBAD	data

Pi Serpentis (π Ser, π Serpentis) is a star in the constellation Serpens, in its head (Serpens Caput).

Pi Serpentis is a white A-type main sequence dwarf with an apparent magnitude of +4.82.^[2] It is approximately 179 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. "Pi Serpentis". 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.