21558+3716 HO 174 CD

 
 
21h 55m 38.57s +37° 14' 03.5" P.A. 262.00 sep 6.0 mag 11.50,11.90
 
 
Coord 2000 21558+3716 Discov num HO  174 Comp CD Coord arcsec 2000 21 55 38.57 +37 14 03.5
Date first 1881 Date last 2015 Obs 20
Pa first 269 Pa last 261.8 P.A. Now (θ) 261.8°
Sep first 6.3 Sep last 5.98 Sep. Now (ρ) 5.98"
Mag pri 11.50 Mag sec 11.90 delta mag (ΔM) 0.4 Spectral class
Pri motion ra +020 Sec motion ra -026
Pri motion dec -004 Sec motion dec -010
Notes N W R (See Notes, , Red magnitudes)
rPM=1.665
This double is not physical.
 
 
21558+3716 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 55 48 +37 15 54 HO 174 AB 2016 25 335 7.6 10.38 10.75 0.37
Show 21 55 48 +37 15 54 HO 174 AC 2015 18 226 160.4 10.38 11.50 1.12
Show 21 55 48 +37 16 01 HO 174 BC 2015 9 224 163.0 10.75 11.50 0.75
Show 21 55 39 +37 14 04 HO 174 CD 2015 20 262 6.0 11.50 11.90 0.40 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2731-00737-1 Gaia DR2 1949827986028540800