17510+1213 STF 2231 CD

17h 51m 12.33s +12° 08' 35.6" P.A. 329.00 sep 18.3 mag 10.02,11.68 Sp F2

Coord 2000 17510+1213 Discov num STF2231 Comp CD Coord arcsec 2000 17 51 12.33 +12 08 35.6
Date first 1902 Date last 2015 Obs 13
Pa first 327 Pa last 329.2 P.A. Now (θ) 329.2°
Sep first 18.7 Sep last 18.333 Sep. Now (ρ) 18.333"
Mag pri 10.02 Mag sec 11.68 delta mag (ΔM) 1.66 Spectral class F2 (yellow-white)
Pri motion ra +000 Sec motion ra +009
Pri motion dec +004 Sec motion dec +009
Notes




rPM=0.809

This double is not physical.



17510+1213 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 17 51 01 +12 12 48 STF 2231 AB 2015 13 153 32.3 9.02 11.59 2.57
Show 17 51 01 +12 12 48 STF 2231 AC 2003 12 148 302.2 9.02 10.02 1.00
Show 17 51 12 +12 08 36 STF 2231 CD 2015 13 329 18.3 10.02 11.68 1.66 <===


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Ophiuchus Tycho2 1002-02610-1 Gaia DR2 4496110170778087680