19500+4509 ES   23AD

 
 
19h 49m 59.38s +45 09' 05.4" P.A. 326 sep 30.6 mag 8.27,10.01 Sp K0
 
 
Coord 2000
19500+4509
Discov num
ES   23
Comp
AD
Coord arcsec 2000
19 49 59.38 +45 09 05.4
Date first
1892
Date last
2008
Obs
17
Pa first
328
Pa last
326
P.A. Now (θ)
326°
Sep first
30.6
Sep last
30.6
Sep. Now (ρ)
30.6"
Mag pri
8.27
Mag sec
10.01
delta mag (ΔM)
1.74
Spectral class
K0 (yellow-orange)
Pri motion ra
-008
Sec motion ra
-006
Pri motion dec
-008
Sec motion dec
-007
Notes
Z (Parallax indicates components are physical)
rPM=0.198 (< 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
326.1
Precise sep
30.55
Constellation
Cygnus
Tycho2
3557-00108-1
HD
187810
last precise pa
326.1
last precise sep
30.55
 
 
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 AD 2008 16 326 30.6 8.27 10.01 K0 ZD 194959.38+450905.4

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