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Doubles in session


Current system
20169+5017
ENG 73 AB
HD 193216


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TDT2189



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20169+5017 ENG 73 AB (HD 193216)

 
 
20h 16m 54.53s +50° 16' 43.4" P.A. 74.00 sep 81.4 mag 8.24,10.30 Sp G5 dist. 30.77 pc (100.37 l.y.)
 
 
Coord 2000 20169+5017 Discov num ENG  73 Comp AB Coord arcsec 2000 20 16 54.53 +50 16 43.4
Date first 1892 Date last 2015 Obs 16
Pa first 96 Pa last 73.9 P.A. Now (θ) 73.9°
Sep first 54.5 Sep last 81.427 Sep. Now (ρ) 81.427"
Mag pri 8.24 Mag sec 10.30 delta mag (ΔM) 2.06 Spectral class G5 (yellow)
Pri motion ra -222 Sec motion ra -022
Pri motion dec -215 Sec motion dec +004
Notes N L W U (See Notes, Linear solution, , Proper motion indicates non-physical)
rPM=0.96
This double is not physical.
 
 
20169+5017 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 193216 32429 20 16 55 +50 16 43 ENG 73 AB 2015 16 74 81.4 8.24 10.30 2.06 <===
Show 32429 20 16 55 +50 16 43 ENG 73 AC 2003 10 158 92.7 8.24 11.00 2.76
Show 32429 20 16 55 +50 16 43 ENG 73 AD 2003 11 340 122.5 8.24 10.61 2.37
Show 32429 20 16 55 +50 16 43 ENG 73 AE 2003 11 118 162.5 8.24 12.30 4.06
Show 32429 20 16 55 +50 16 43 GIC 155 AF 2015 6 287 105.9 8.24 12.99 4.75
Show 32429 20 16 55 +50 16 43 MET 89 AH 2003 1 67 4.2 6.40 18.60 12.20
Show 32429 20 16 55 +50 16 43 MET 89 AI 2003 1 44 8.7 6.40 16.94 10.54
Show 32429 20 16 55 +50 16 43 MET 89 AJ 2004 1 326 11.3 6.40 18.49 12.09
Show 32429 20 16 55 +50 16 43 MET 89 AK 2003 1 232 11.7 6.40 18.41 12.01
Show 20 17 02 +50 17 03 BUP 243 BG 2015 10 193 10.5 10.30 11.04 0.74
Show 20 16 50 +50 18 38 BUP 243 DF 2015 15 216 105.9 10.61 12.99 2.38
Show 20 16 44 +50 17 14 RAO 70 FL 2015 4 266 15.1 12.99 16.40 3.41
12-fold system
12 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 193216 Constellation Cygnus SAO 32429 HIP 99965
Tycho2 3580-00583-1 Gaia DR2 2085008267746614912 HD 193216 GC 28207
BD BD+49 3245 Distance 30.77 Distance ly 100.37