20205+4122 FAB  15AC

 
 
20h 20m 28.24s +41 21' 51.5" P.A. 203 sep 19.5 mag 10.95,12.81 Sp B2 dist. 79.49 pc (259.3 l.y.)
 
 
Coord 2000
20205+4122
Discov num
FAB  15
Comp
AC
Coord arcsec 2000
20 20 28.24 +41 21 51.5
Date first
1892
Date last
2015
Obs
13
Pa first
201
Pa last
203
P.A. Now (θ)
203°
Sep first
18.6
Sep last
19.5
Sep. Now (ρ)
19.5"
Mag pri
10.95
Mag sec
12.81
delta mag (ΔM)
1.86
Spectral class
B2 (blue-white)
Pri motion ra
-003
Sec motion ra
-009
Pri motion dec
-006
Sec motion dec
-012
Notes
rPM=0.566
Nature of this double is uncertain.
 
 
20205+4122 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show V1685 Cyg 20205+4122 LI 5 AB 1992 2015 9 145 8.8 10.95 15.90 4.95
Show 20205+4122 FAB 15 AC 1892 2015 13 203 19.5 10.95 12.81 1.86 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
203
Precise sep
19.497
Var name
V1685 Cyg
Constellation
Cygnus
HIP
100289
Tycho2
3160-00391-1
Gaia DR2
76220219648
BD
BD+40 4124
Distance
79.49
Distance ly
259.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20205+4122 FAB 15 AC 1998 6 203 19.4 10.95 12.81 B2 D 202028.24+412151.5
20205+4122 FAB 15 AC 2009 7 203 19.5 10.95 12.81 B2 D 202028.24+412151.5
20205+4122 FAB 15 AC 2015 9 203 19.5 10.95 12.81 B2 202028.24+412151.5

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