20585+5028 STF2741AC

 
 
20h 58m 30.03s +50 27' 42.4" P.A. 355 sep 138.6 mag 5.94,11.77 Sp B5Vn
 
 
Coord 2000
20585+5028
Discov num
STF2741
Comp
AC
Coord arcsec 2000
20 58 30.03 +50 27 42.4
Date first
1879
Date last
2003
Obs
5
Pa first
356
Pa last
355
P.A. Now (θ)
355°
Sep first
139.4
Sep last
138.6
Sep. Now (ρ)
138.6"
Mag pri
5.94
Mag sec
11.77
delta mag (ΔM)
5.83
Spectral class
B5Vn (blue-white)
Pri motion ra
+010
Sec motion ra
-003
Pri motion dec
+003
Sec motion dec
-001
Notes
N (See Notes)
rPM=1.303
This double is not physical.
 
 
20585+5028 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 33034 20585+5028 STF2741 AB 1783 2017 151 25 2.0 5.94 6.79 0.85
Show 20585+5028 STF2741 AC 1879 2003 5 355 138.6 5.94 11.77 5.83 <===
Show 20585+5028 BU 9007 CD 1999 2003 2 51 12.8 12.30 13.30 1.00
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
355.4
Precise sep
138.58
Constellation
Cygnus
last precise pa
355.4
last precise sep
138.58
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20585+5028 STF2741 AC 1999 4 355 138.1 5.94 10.90 B5Vn D 205830.03+502742.4
20585+5028 STF2741 AC 2003 5 355 138.6 5.94 12.30 B5Vn N D 205830.03+502742.4

If you need more information about this double, apply for a data request form to the WDS.