21101+4359 HJ 1618 AB (HD 201734)

 
 
21h 10m 04.76s +43° 59' 23.3" P.A. 174.00 sep 21.7 mag 8.27,11.20 Sp A0
 
 
Coord 2000 21101+4359 Discov num HJ 1618 Comp AB Coord arcsec 2000 21 10 04.76 +43 59 23.3
Date first 1828 Date last 2015 Obs 9
Pa first 172 Pa last 173.9 P.A. Now (θ) 173.9°
Sep first 15.0 Sep last 21.694 Sep. Now (ρ) 21.694"
Mag pri 8.27 Mag sec 11.20 delta mag (ΔM) 2.93 Spectral class A0 (white)
Pri motion ra +005 Sec motion ra -014
Pri motion dec +003 Sec motion dec +004
Notes
rPM=1.307
This double is not physical.
 
 
21101+4359 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 201734 50525 21 10 05 +43 59 23 HJ 1618 AB 2015 9 174 21.7 8.27 11.20 2.93 <===
Show 21 10 05 +43 59 02 HJ 1618 BC 2015 6 132 2.9 11.20 12.20 1.00
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 201734 Constellation Cygnus SAO 50525 Tycho2 3181-05363-1
Gaia DR2 1970259523427738880 HD 201734