21492+4702 COU2317AC

 
 
21h 49m 19.35s +47 02' 03.7" P.A. 143 sep 21.1 mag 12.00,11.60
 
 
Coord 2000
21492+4702
Discov num
COU2317
Comp
AC
Coord arcsec 2000
21 49 19.35 +47 02 03.7
Date first
1895
Date last
2003
Obs
7
Pa first
147
Pa last
143
P.A. Now (θ)
143°
Sep first
20.5
Sep last
21.1
Sep. Now (ρ)
21.1"
Mag pri
12.00
Mag sec
11.60
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
-018
Sec motion ra
Pri motion dec
-015
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21492+4702 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21492+4702 COU2317 AB 1985 1985 1 107 0.4 12.00 12.30 0.30
Show 21492+4702 COU2317 AC 1895 2003 7 143 21.1 12.00 11.60 0.40 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
142.5
Precise sep
21.105
Constellation
Cygnus
last precise pa
142.5
last precise sep
21.105
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21492+4702 COU2317 AC 1985 2 144 21.0 12.00 11.60 214919.35+470203.7
21492+4702 COU2317 AC 2003 7 143 21.1 12.00 11.60 214919.35+470203.7

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