20106+3338 STT 541BC

 
 
20h 10m 38.34s +33 37' 50.7" P.A. 182 sep 1.8 mag 8.43,9.73 Sp B8V dist. 444.44 pc (1449.76 l.y.)
 
 
Coord 2000
20106+3338
Discov num
STT 541
Comp
BC
Coord arcsec 2000
20 10 38.34 +33 37 50.7
Date first
1840
Date last
2017
Obs
25
Pa first
194
Pa last
182
P.A. Now (θ)
182°
Sep first
1.5
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
8.43
Mag sec
9.73
delta mag (ΔM)
1.3
Spectral class
B8V (blue-white)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
+000
Sec motion dec
+000
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
20106+3338 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20106+3338 S 738 AB 1797 2017 41 106 42.4 7.76 8.43 0.67
Show 20106+3338 STT 541 BC 1840 2017 25 182 1.8 8.43 9.73 1.30 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
182
Precise sep
1.77
Constellation
Cygnus
SAO
69554
HIP
99416
Tycho2
2675-03000-1
Gaia DR2
34321271296
HD
191813
BD
BD+33 3780
Distance
444.44
Distance ly
1449.76
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20106+3338 STT 541 BC 1999 22 183 1.8 8.43 9.73 D 201038.34+333750.7
20106+3338 STT 541 BC 2011 24 182 1.7 8.43 9.73 N 201038.34+333750.7
20106+3338 STT 541 BC 2017 25 182 1.8 8.43 9.73 B8V N 201038.34+333750.7

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