20010+3742 BU 1289 AC

 
 
20h 00m 59.61s +37 41' 56.1" P.A. 89.00 sep 21.5 mag 8.15,9.70 Sp B5 dist. 348.43 pc (1136.58 l.y.)
 
 
Coord 2000 20010+3742 Discov num BU 1289 Comp AC Coord arcsec 2000 20 00 59.61 +37 41 56.1
Date first 1896 Date last 2018 Obs 31
Pa first 90 Pa last 89.1 P.A. Now (θ) 89.1°
Sep first 21.4 Sep last 21.504 Sep. Now (ρ) 21.504"
Mag pri 8.15 Mag sec 9.70 delta mag (ΔM) 1.55 Spectral class B5 (blue-white)
Pri motion ra -007 Sec motion ra -007
Pri motion dec -009 Sec motion dec +033
Notes N (See Notes)
rPM=1.245
This double is not physical.
 
 
20010+3742 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 189901 69258 20 00 60 +37 41 56 BU 1289 AB 2016 23 55 0.7 8.15 9.20 1.05
Show 69258 20 00 60 +37 41 56 BU 1289 AC 2018 31 89 21.5 8.15 9.70 1.55 <===
Show 69258 20 00 60 +37 41 56 FOX 246 AB,D 2015 12 170 104.2 8.15 11.17 3.02
Show 69258 20 00 60 +37 41 56 WAL 125 AB,E 2015 7 10 46.5 8.15 13.52 5.37
Quintuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 69258 HIP 98534 Tycho2 3150-02606-1
Gaia DR2 2060249185726240640 HD 189901 BD BD+37 3725 Distance 348.43
Distance ly 1136.58