20169+3307 OSO 122AD

 
 
20h 16m 53.68s +33 06' 31.1" P.A. 117 sep 22.5 mag 9.34,17.97 Sp G0 dist. 77.52 pc (252.87 l.y.)
 
 
Coord 2000
20169+3307
Discov num
OSO 122
Comp
AD
Coord arcsec 2000
20 16 53.68 +33 06 31.1
Date first
1994
Date last
1999
Obs
2
Pa first
120
Pa last
117
P.A. Now (θ)
117°
Sep first
22.5
Sep last
22.5
Sep. Now (ρ)
22.5"
Mag pri
9.34
Mag sec
17.97
delta mag (ΔM)
8.63
Spectral class
G0 (yellow)
Pri motion ra
-128
Sec motion ra
+004
Pri motion dec
-258
Sec motion dec
-008
Notes
N (See Notes)
rPM=0.982
This double is not physical.
 
 
20169+3307 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20169+3307 OSO 122 AB 1994 1994 1 11 16.2 9.34 17.30 7.96
Show 20169+3307 OSO 122 AC 1994 2002 3 271 20.9 9.34 17.21 7.87
Show 20169+3307 OSO 122 AD 1994 1999 2 117 22.5 9.34 17.97 8.63 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
117.1
Precise sep
22.47
Constellation
Cygnus
SAO
69746
HIP
99963
Tycho2
2676-00203-1
Gaia DR2
74467015424
HD
228710
BD
BD+32 3767
Distance
77.52
Distance ly
252.87
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20169+3307 OSO 122 AD 1999 2 117 22.5 9.26 17.00 N D 201653.68+330631.1

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