Tau² Serpentis

:"For other stars with this Bayer designation, see Tau Serpentis."Starbox begin
name = τ² SerpentisStarbox observe
epoch = J2000.0
equinox = J2000.0 (ICRS)
constell = Serpens
ra = RA|15|32|09.6751SIMBAD link|tau2+ser|* 12 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.]
dec = DEC|+16|03|22.208
appmag_v=6.218Starbox character
class = B9V
u-b = −0.23 [http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=V/50/catalog&recno=5770 HR 5770] , database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID [http://vizier.u-strasbg.fr/viz-bin/Cat?V/50 V/50] . Accessed on line September 19, 2008.]
b-v = −0.05Starbox astrometry
radial_v = −18 ± 5
prop_mo_ra = −2.87
prop_mo_dec = 6.76
parallax = 7.56
p_error = 0.80
parallax_footnote =
absmag_v= 0.6 [From apparent magnitude and parallax.] Starbox detail
rotational_velocity = 175
radius = 2.7 [http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=II/224/cadars.dat&recno=6750 HD 138527] , database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID [http://vizier.u-strasbg.fr/viz-bin/Cat?II/224 II/224] . Accessed on line September 19, 2008.] Starbox catalog
names=τ² Ser, Tau² Serpentis, Tau² Ser, 12 Serpentis, 12 Ser, BD+16 2797, GC 20880, HD 138527, HIP 76069, HR 5770, PPM 131484, SAO 101600.Starbox reference
Simbad=tau2+ser

Tau² Serpentis (Tau² Ser / τ² Serpentis / τ² Ser) is a B-type main sequence star in the constellation of Serpens, approximately 430 light-years from Earth. It has an apparent visual magnitude of approximately 6.218.

References