Tau8 Serpentis

:"For other stars with this Bayer designation, see Tau Serpentis."Starbox begin
name = τ⁸ SerpentisStarbox observe
epoch = J2000.0
equinox = J2000.0 (ICRS)
constell = Serpens
ra = RA|15|44|42.1313SIMBAD link|tau8+ser|* 26 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.]
dec = DEC|+17|15|51.215
appmag_v=6.144Starbox character
class = A0V
u-b = −0.03 [http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=V/50/catalog&recno=5858 HR 5858] , 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 = 0.00Starbox astrometry
radial_v = −5.2 ± 5
prop_mo_ra = −30.44
prop_mo_dec = 6.59
parallax = 10.16
p_error = 0.79
parallax_footnote =
absmag_v= 1.2 [From apparent magnitude and parallax.] Starbox detail
rotational_velocity = 76
radius = 2.0 [http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=II/224/cadars.dat&recno=6839 HD 140729] , 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=τ⁸ Ser, Tau⁸ Serpentis, Tau⁸ Ser, 26 Serpentis, 26 Ser, BD+17 2906, GC 21164, HD 140729, HIP 77111, HR 5858, PPM 131656, SAO 101712.Starbox reference
Simbad=tau8+ser

Tau⁸ Serpentis (Tau⁸ Ser / τ⁸ Serpentis / τ⁸ Ser) is an A-type main sequence star in the constellation of Serpens, approximately 320 light-years from the Earth. It has an apparent visual magnitude of approximately 6.144. Although it was observed to be binary by speckle interferometry in 1985, subsequent observations show no sign of binarity, and the detection appears to have been spurious. [ICCD speckle observations of binary stars. X - A further survey for duplicity among the bright stars, Harold A. McAlister, Brian D. Mason, William I. Hartkopf, and Michael M. Shara, "Astronomical Journal" 106, #4 (October 1993), pp. 1639–1655, doi|10.1086/116753, bibcode|1993AJ....106.1639M.]

References