20203+3924 STF2668AB,C

 
 
20h 20m 15.22s +39 24' 11.8" P.A. 280 sep 3.5 mag 6.34,8.49 Sp A1V dist. 180.51 pc (588.82 l.y.)
 
 
Coord 2000
20203+3924
Discov num
STF2668
Comp
AB,C
Coord arcsec 2000
20 20 15.22 +39 24 11.8
Date first
1831
Date last
2016
Obs
63
Pa first
294
Pa last
280
P.A. Now (θ)
280°
Sep first
3.3
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
6.34
Mag sec
8.49
delta mag (ΔM)
2.15
Spectral class
A1V (white)
Pri motion ra
+003
Sec motion ra
-005
Pri motion dec
-024
Sec motion dec
-023
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.333
This double is physical.
 
 
20203+3924 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 69856 20203+3924 A 1427 AB 1906 2008 47 142 0.2 6.57 8.17 1.60 Y
Show 20203+3924 STF2668 AB,C 1831 2016 63 280 3.5 6.34 8.49 2.15 <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
280
Precise sep
3.452
Constellation
Cygnus
SAO
69856
HIP
100268
Tycho2
3156-02225-1
Gaia DR2
69341204736
HD
193702
HR
7784
BD
BD+38 4021
Distance
180.51
Distance ly
588.82
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20203+3924 STF2668 AB,C 2010 57 280 3.2 6.34 8.49 N D 202015.22+392411.8
20203+3924 STF2668 AB,C 2011 58 281 3.4 6.34 8.49 N D 202015.22+392411.8
20203+3924 STF2668 AB,C 2012 59 281 3.3 6.34 8.49 N D 202015.22+392411.8
20203+3924 STF2668 AB,C 2013 61 279 3.3 6.34 8.49 A1V NVD 202015.22+392411.8
20203+3924 STF2668 AB,C 2016 63 280 3.5 6.34 8.49 A1V NV 202015.22+392411.8

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