19500+4509 ES   23AC

 
 
19h 49m 59.38s +45 09' 05.4" P.A. 98 sep 13 mag 8.27,15.00 Sp K0
 
 
Coord 2000
19500+4509
Discov num
ES   23
Comp
AC
Coord arcsec 2000
19 49 59.38 +45 09 05.4
Date first
1915
Date last
2011
Obs
3
Pa first
103
Pa last
98
P.A. Now (θ)
98°
Sep first
10.7
Sep last
13.0
Sep. Now (ρ)
13"
Mag pri
8.27
Mag sec
15.00
delta mag (ΔM)
6.73
Spectral class
K0 (yellow-orange)
Pri motion ra
-008
Sec motion ra
+089
Pri motion dec
-008
Sec motion dec
+000
Notes
rPM=1.094
This double is not 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
97.5
Precise sep
12.99
Cdsa2 id
ES 23 AC
Constellation
Cygnus
Ra deg
19.83316111111111
De deg
45.1515
last precise pa
97.5
last precise sep
12.99
 
 
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 AC 1915 1 103 10.7 8.27 15.00 K0 194959.38+450905.4
19500+4509 ES 23 AC 2011 2 98 13.0 8.27 15.00 K0 194959.38+450905.4

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