18029+5626 STF 2278 AD

 
 
18h 02m 52.88s +56° 25' 40.3" P.A. 189.00 sep 197.9 mag 7.78,10.19 Sp A9V dist. 137.74 pc (449.31 l.y.)
 
 
Coord 2000 18029+5626 Discov num STF2278 Comp AD Coord arcsec 2000 18 02 52.88 +56 25 40.3
Date first 1880 Date last 2022 Obs 19
Pa first 191 Pa last 188.5 P.A. Now (θ) 188.5°
Sep first 200.8 Sep last 197.91 Sep. Now (ρ) 197.91"
Mag pri 7.78 Mag sec 10.19 delta mag (ΔM) 2.41 Spectral class A9V (white)
Pri motion ra -021 Sec motion ra +065
Pri motion dec +039 Sec motion dec +095
Notes N (See Notes)
rPM=0.892
This double is not physical.
 
 
18029+5626 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 165502 30715 18 02 53 +56 25 40 STF 2278 AB 2022 94 31 35.1 7.78 8.14 0.36
Show 30715 18 02 53 +56 25 40 STF 2278 AC 2017 45 38 33.6 7.78 8.53 0.75
Show 30715 18 02 53 +56 25 40 STF 2278 AD 2022 19 189 197.9 7.78 10.19 2.41 <===
Show 30715 18 02 53 +56 25 40 SLE 128 AE 2022 9 279 46.4 7.78 13.18 5.40
Show 30715 18 02 53 +56 25 40 SLE 128 AF 2022 10 278 85.2 7.78 12.72 4.94
Show 30715 18 02 53 +56 25 40 SLE 128 AG 2022 11 250 127.2 7.78 11.96 4.18
Show 30716 18 02 55 +56 26 12 STF 2278 BC 2018 87 146 6.0 8.14 8.53 0.39
Show 18 02 49 +56 22 24 STF 2278 DS 2022 13 213 6.7 10.19 14.60 4.41
Octuple system
8 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 30715 HIP 88381 Tycho2 3911-01862-1
Gaia DR2 2150403439784289408 HD 165502 BD BD+56 2061 Distance 137.74
Distance ly 449.31