20107+3703 WAL 129AC

 
 
20h 10m 44.13s +37 02' 33.5" P.A. 271 sep 26.9 mag 7.57,11.30 Sp G3Ib
 
 
Coord 2000
20107+3703
Discov num
WAL 129
Comp
AC
Coord arcsec 2000
20 10 44.13 +37 02 33.5
Date first
1944
Date last
2015
Obs
5
Pa first
275
Pa last
271
P.A. Now (θ)
271°
Sep first
20.0
Sep last
26.9
Sep. Now (ρ)
26.9"
Mag pri
7.57
Mag sec
11.30
delta mag (ΔM)
3.73
Spectral class
G3Ib (yellow)
Pri motion ra
+003
Sec motion ra
-012
Pri motion dec
-003
Sec motion dec
-019
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.976
This double is not physical.
 
 
20107+3703 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20107+3703 STT 399 AB 1845 2015 25 278 4.6 7.57 9.92 2.35
Show 20107+3703 WAL 129 AC 1944 2015 5 271 26.9 7.57 11.30 3.73 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
270.5
Precise sep
26.86
Constellation
Cygnus
Tycho2
2683-00875-1
Gaia DR2
55675740800
HD
191897
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20107+3703 WAL 129 AC 1944 1 275 20.0 7.57 11.30 G3Ib 201044.13+370233.5
20107+3703 WAL 129 AC 1998 2 271 27.0 7.57 11.30 G3Ib 201044.13+370233.5
20107+3703 WAL 129 AC 2010 3 271 26.9 7.57 11.30 G3Ib D 201044.13+370233.5
20107+3703 WAL 129 AC 2015 5 271 26.9 7.57 11.30 G3Ib NU 201044.13+370233.5

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