18301+0404 STF 2322 AD

 
 
18h 30m 05.12s +04° 03' 55.3" P.A. 197.00 sep 85.3 mag 6.67,13.39 Sp B2V dist. 507.61 pc (1655.82 l.y.)
 
 
Coord 2000 18301+0404 Discov num STF2322 Comp AD Coord arcsec 2000 18 30 05.12 +04 03 55.3
Date first 1912 Date last 2009 Obs 7
Pa first 194 Pa last 196.8 P.A. Now (θ) 196.8°
Sep first 85.2 Sep last 85.34 Sep. Now (ρ) 85.34"
Mag pri 6.67 Mag sec 13.39 delta mag (ΔM) 6.72 Spectral class B2V (blue-white)
Pri motion ra -001 Sec motion ra -003
Pri motion dec -007 Sec motion dec -003
Notes N (See Notes)
rPM=0.632
Nature of this double is uncertain.
 
 
18301+0404 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 123571 18 30 05 +04 03 55 CHR 72 Aa,Ab 2021 17 285 0.1 6.70 9.60 2.90 Y
Show HD 170580 123571 18 30 05 +04 03 55 STF 2322 AB 2009 25 172 19.8 6.67 11.28 4.61
Show 123571 18 30 05 +04 03 55 STF 2322 AC 2015 10 295 67.2 6.67 12.79 6.12
Show 123571 18 30 05 +04 03 55 STF 2322 AD 2009 7 197 85.3 6.67 13.39 6.72 <===
Quintuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ophiuchus SAO 123571 HIP 90676 Tycho2 0454-01662-1
Gaia DR2 4284093473916591104 HD 170580 HR 6941 ADS 11399
BD BD+03 3727 FK5 3469 Distance 507.61 Distance ly 1655.82