18338+1744 WAK 21 CD

18h 33m 45.62s +17° 43' 55.9" P.A. 263.00 sep 0.5 mag 9.30,9.56 Sp F6V

Coord 2000 18338+1744 Discov num WAK  21 Comp CD Coord arcsec 2000 18 33 45.62 +17 43 55.9
Date first 1975 Date last 2019 Obs 28
Pa first 249 Pa last 263.3 P.A. Now (θ) 263.3°
Sep first 0.2 Sep last 0.492 Sep. Now (ρ) 0.492"
Mag pri 9.30 Mag sec 9.56 delta mag (ΔM) 0.26 Spectral class F6V (yellow-white)
Pri motion ra +010 Sec motion ra +010
Pri motion dec -006 Sec motion dec -006
Notes N (See Notes)




Nature of this double is uncertain.



18338+1744 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 103853 18 33 46 +17 43 56 HU 322 AB 2019 53 92 0.2 7.74 8.91 1.17 Y
Show HD 171365 103853 18 33 46 +17 43 56 STF 2339 AB,CD 2018 115 277 1.7 7.45 8.67 1.22
Show 18 33 46 +17 43 56 WAK 21 CD 2019 28 263 0.5 9.30 9.56 0.26 <===


Quadruple system
6 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Hercules Gaia DR2 4523973547779600384