19555+4140 KOI1689AB

 
 
19h 55m 32.15s +41 39' 43.4" P.A. 171.00 sep 2.8 mag 13.40,17.50
 
 
Coord 2000
19555+4140
Discov num
KOI1689
Comp
AB
Coord arcsec 2000
19 55 32.15 +41 39 43.4
Date first
2010
Date last
2015
Obs
2
Pa first
171
Pa last
171
P.A. Now (θ)
171°
Sep first
2.6
Sep last
2.8
Sep. Now (ρ)
2.8"
Mag pri
13.40
Mag sec
17.50
delta mag (ΔM)
4.1
Spectral class
Pri motion ra
+007
Sec motion ra
Pri motion dec
+010
Sec motion dec
Notes
K (K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star Nature of this double is uncertain.
 
 
19555+4140 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 48981 19555+4140 KOI1689 AB 2010 2015 2 171 2.8 13.40 17.50 4.10 <===
Show 48981 19555+4140 KOI1689 AC 2010 2010 1 55 3.8 13.40 17.30 3.90
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
171.3
Precise sep
2.768
Constellation
Cygnus
SAO
48981
Gaia DR2
87766722944
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19555+4140 KOI1689 AB 2010 1 171 2.6 13.40 17.50 K 195532.15+413943.4
19555+4140 KOI1689 AB 2015 2 171 2.8 13.40 17.50 K 195532.15+413943.4

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