19500+4509 ES   23AB

 
 
19h 49m 59.38s +45 09' 05.4" P.A. 136 sep 8.5 mag 8.27,12.60 Sp K0
 
 
Coord 2000
19500+4509
Discov num
ES   23
Comp
AB
Coord arcsec 2000
19 49 59.38 +45 09 05.4
Date first
1892
Date last
2007
Obs
11
Pa first
139
Pa last
136
P.A. Now (θ)
136°
Sep first
7.7
Sep last
8.5
Sep. Now (ρ)
8.5"
Mag pri
8.27
Mag sec
12.60
delta mag (ΔM)
4.33
Spectral class
K0 (yellow-orange)
Pri motion ra
-007
Sec motion ra
-006
Pri motion dec
-007
Sec motion dec
-010
Notes
rPM=0.271 (< 0.3, Physical double)
This double is physical.
 
 
19500+4509 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19500+4509 ES 23 AB 1892 2007 11 136 8.5 8.27 12.60 4.33 <===
Show 19500+4509 ES 23 AC 1915 2011 3 98 13.0 8.27 15.00 6.73
Show 19500+4509 ES 23 AD 1892 2008 17 326 30.6 8.27 10.01 1.74
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
136.2
Precise sep
8.54
Constellation
Cygnus
Tycho2
3557-00108-1
HD
187810
last precise pa
136.2
last precise sep
8.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19500+4509 ES 23 AB 2007 11 136 8.5 8.27 12.60 K0 D 194959.38+450905.4

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