21426+4226 BU 1505 BC

21h 42m 32.99s +42° 26' 16.6" P.A. 177.00 sep 21.4 mag 10.56,12.68 dist. 263.85 pc (860.68 l.y.)

Coord 2000 21426+4226 Discov num BU 1505 Comp BC Coord arcsec 2000 21 42 32.99 +42 26 16.6
Date first 1998 Date last 2017 Obs 9
Pa first 176 Pa last 177.2 P.A. Now (θ) 177.2°
Sep first 21.3 Sep last 21.4 Sep. Now (ρ) 21.4"
Mag pri 10.56 Mag sec 12.68 delta mag (ΔM) 2.12 Spectral class
Pri motion ra +003 Sec motion ra -009
Pri motion dec -014 Sec motion dec -007
Notes




rPM=0.97

This double is not physical.



21426+4226 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 206673 51214 21 42 34 +42 26 26 STF 2820 AB 2017 21 230 16.0 7.48 10.56 3.08
Show 51214 21 42 34 +42 26 26 BU 1505 AC 2017 10 200 33.6 7.48 12.68 5.20
Show 21 42 33 +42 26 17 BU 1505 BC 2017 9 177 21.4 10.56 12.68 2.12 <===


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Cygnus HIP 107174 Gaia DR2 1966662264967423872 Distance 263.85
Distance ly 860.68