20193+3635 AG  253AC

 
 
20h 19m 18.43s +36 35' 08.5" P.A. 268.00 sep 171.9 mag 9.38,11.28 Sp G5
 
 
Coord 2000
20193+3635
Discov num
AG  253
Comp
AC
Coord arcsec 2000
20 19 18.43 +36 35 08.5
Date first
1896
Date last
2015
Obs
13
Pa first
270
Pa last
268
P.A. Now (θ)
268°
Sep first
171.5
Sep last
171.9
Sep. Now (ρ)
171.9"
Mag pri
9.38
Mag sec
11.28
delta mag (ΔM)
1.9
Spectral class
G5 (yellow)
Pri motion ra
-003
Sec motion ra
-007
Pri motion dec
-019
Sec motion dec
-041
Notes
N (See Notes)
Visually invisible, K-band or other infrared star rPM=0.538
Nature of this double is uncertain.
 
 
20193+3635 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 69829 20193+3635 AG 253 AB 1896 2018 30 118 9.8 9.38 9.85 0.47
Show 69829 20193+3635 AG 253 AC 1896 2015 13 268 171.9 9.38 11.28 1.90 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
267.9
Precise sep
171.852
Constellation
Cygnus
SAO
69829
Tycho2
2684-01643-1
Gaia DR2
93381925248
HD
228899
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20193+3635 AG 253 AC 1991 6 268 171.7 9.38 11.28 201918.43+363508.5
20193+3635 AG 253 AC 2008 7 269 173.2 9.38 11.28 201918.43+363508.5
20193+3635 AG 253 AC 2015 13 268 171.9 9.38 11.28 G5 N 201918.43+363508.5

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