20164+1745 J  1109AB

 
 
20h 16m 25.24s +17 44' 38.1" P.A. 331 sep 6.4 mag 11.70,12.50
 
 
Coord 2000
20164+1745
Discov num
J  1109
Comp
AB
Coord arcsec 2000
20 16 25.24 +17 44 38.1
Date first
1900
Date last
2015
Obs
11
Pa first
324
Pa last
331
P.A. Now (θ)
331°
Sep first
6.5
Sep last
6.4
Sep. Now (ρ)
6.4"
Mag pri
11.70
Mag sec
12.50
delta mag (ΔM)
0.8
Spectral class
Pri motion ra
+004
Sec motion ra
+007
Pri motion dec
-005
Sec motion dec
+004
Notes
rPM=1.177
This double is not physical.
 
 
20164+1745 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20164+1745 J 1109 AB 1900 2015 11 331 6.4 11.70 12.50 0.80 <===
Show 20164+1745 J 1109 AC 1998 2015 7 9 8.4 11.70 15.00 3.30
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
331.2
Precise sep
6.374
Constellation
Sagitta
SAO
105914
Gaia DR2
74280840448
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20164+1745 J 1109 AB 1958 4 332 4.4 11.70 12.50 201625.24+174438.1
20164+1745 J 1109 AB 2001 5 331 6.4 11.70 12.50 201625.24+174438.1
20164+1745 J 1109 AB 2015 7 331 6.4 11.70 12.50 201625.24+174438.1

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