20144+3524 ES  244AB

 
 
20h 14m 25.83s +35 24' 25.6" P.A. 130 sep 41.2 mag 8.44,12.25 Sp B7V
 
 
Coord 2000
20144+3524
Discov num
ES  244
Comp
AB
Coord arcsec 2000
20 14 25.83 +35 24 25.6
Date first
1905
Date last
2015
Obs
7
Pa first
130
Pa last
130
P.A. Now (θ)
130°
Sep first
40.7
Sep last
41.2
Sep. Now (ρ)
41.2"
Mag pri
8.44
Mag sec
12.25
delta mag (ΔM)
3.81
Spectral class
B7V (blue-white)
Pri motion ra
+001
Sec motion ra
-001
Pri motion dec
+001
Sec motion dec
-001
Notes
rPM=2
This double is not physical.
 
 
20144+3524 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20144+3524 ES 244 AB 1905 2015 7 130 41.2 8.44 12.25 3.81 <===
Show 20144+3524 ES 244 BC 1905 2015 5 17 4.9 12.25 12.90 0.65
Show 20144+3524 ES 244 CD 1905 2015 4 304 4.1 12.90 14.10 1.20
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
130.2
Precise sep
41.236
Constellation
Cygnus
SAO
69673
Tycho2
2679-00443-1
Gaia DR2
98086786432
HD
192606
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20144+3524 ES 244 AB 1991 4 125 39.1 8.44 12.25 B7V D 201425.83+352425.6
20144+3524 ES 244 AB 1999 5 130 41.2 8.44 12.25 B7V D 201425.83+352425.6
20144+3524 ES 244 AB 2002 6 124 39.4 8.44 12.25 B7V D 201425.83+352425.6
20144+3524 ES 244 AB 2015 7 130 41.2 8.44 12.25 B7V 201425.83+352425.6

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