18031-0811 STF 2262 AC

 
 
18h 03m 04.91s -08° 10' 48.9" P.A. 125.00 sep 100.8 mag 5.27,11.28 Sp F4IV dist. 51.33 pc (167.44 l.y.)
 
 
Coord 2000 18031-0811 Discov num STF2262 Comp AC Coord arcsec 2000 18 03 04.91 -08 10 48.9
Date first 1832 Date last 2000 Obs 13
Pa first 115 Pa last 125.4 P.A. Now (θ) 125.4°
Sep first 83.1 Sep last 100.794 Sep. Now (ρ) 100.794"
Mag pri 5.27 Mag sec 11.28 delta mag (ΔM) 6.01 Spectral class F4IV (yellow-white)
Pri motion ra +027 Sec motion ra +023
Pri motion dec -031 Sec motion dec -018
Notes N (See Notes)
rPM=0.331
Nature of this double is uncertain.
 
 
18031-0811 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Tau Oph 142050 18 03 05 -08 10 49 STF 2262 AB 2021 665 291 1.4 5.27 5.86 0.59 Y
Show 142050 18 03 05 -08 10 49 STF 2262 AC 2000 13 125 100.8 5.27 11.28 6.01 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV10073 Oph Constellation Ophiuchus SAO 142050 HIP 88404
Tycho2 5675-00662-1 Gaia DR2 4170583776094715520 HD 164764 HR 6733
GC 24565 ADS 11005 GL Gl 700.1B BD BD-08 4549
Bayer Tau Ophiuchi Bayer name Tau Oph Flamsteed 69 Ophiuchi Flamsteed name 69 Oph
Distance 51.33 Distance ly 167.44 Bayer greek τ Oph