20585+5028 STF 2741 AB (HD 199955)

 
 
20h 58m 30.03s +50° 27' 42.4" P.A. 24.00 sep 2.0 mag 5.94,6.79 Sp B5Vn dist. 331.13 pc (1080.15 l.y.)
 
 
Coord 2000 20585+5028 Discov num STF2741 Comp AB Coord arcsec 2000 20 58 30.03 +50 27 42.4
Date first 1783 Date last 2019 Obs 153
Pa first 44 Pa last 23.9 P.A. Now (θ) 23.9°
Sep first 1.2 Sep last 1.967 Sep. Now (ρ) 1.967"
Mag pri 5.94 Mag sec 6.79 delta mag (ΔM) 0.85 Spectral class B5Vn (blue-white)
Pri motion ra +005 Sec motion ra +005
Pri motion dec +003 Sec motion dec +003
Notes N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
20585+5028 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 199955 33034 20 58 30 +50 27 42 STF 2741 AB 2019 153 24 2.0 5.94 6.79 0.85 <===
Show 33034 20 58 30 +50 27 42 STF 2741 AC 2003 5 355 138.6 5.94 11.77 5.83
Show 20 58 29 +50 30 01 BU 9007 CD 2015 6 50 13.3 12.30 13.30 1.00
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 199955 Constellation Cygnus SAO 33034 HIP 103530
Tycho2 3583-01164-1 Gaia DR2 2168990198522326528 HD 199955 HR 8040
GC 29291 ADS 14504 BD BD+49 3426 Distance 331.13
Distance ly 1080.15