20425+4916 ARG  39AB

 
 
20h 42m 29.79s +49 15' 59.1" P.A. 183 sep 15.1 mag 8.42,8.93 Sp K5
 
 
Coord 2000
20425+4916
Discov num
ARG  39
Comp
AB
Coord arcsec 2000
20 42 29.79 +49 15 59.1
Date first
1899
Date last
2015
Obs
62
Pa first
110
Pa last
183
P.A. Now (θ)
183°
Sep first
9.9
Sep last
15.1
Sep. Now (ρ)
15.1"
Mag pri
8.42
Mag sec
8.93
delta mag (ΔM)
0.51
Spectral class
K5 (yellow-orange)
Pri motion ra
+009
Sec motion ra
-080
Pri motion dec
+002
Sec motion dec
-101
Notes
N L (See Notes, Linear solution)
rPM=1.057
This double is not physical.
 
 
20425+4916 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20425+4916 ARG 39 AB 1899 2015 62 183 15.1 8.42 8.93 0.51 <===
Show 20425+4916 ARG 39 AF 1909 2013 5 259 34.2 8.42 14.00 5.58
Show 20425+4916 ARG 39 AG 1909 2013 5 342 52.2 8.42 13.64 5.22
Show 20425+4916 ARG 39 BC 1906 2013 9 102 34.8 8.93 13.32 4.39
Show 20425+4916 ARG 39 BD 1907 2013 6 240 21.4 8.93 14.30 5.37
Show 20425+4916 ARG 39 BE 1909 2013 4 55 43.0 8.93 15.00 6.07
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
182.8
Precise sep
15.05
Cdsa2 id
ARG 39 AB
Constellation
Cygnus
Tycho2
3582-01449-1
HD
197548
Ra deg
20.708275
De deg
49.266416666666665
last precise pa
182.8
last precise sep
15.05
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20425+4916 ARG 39 AB 2007 43 180 14.1 8.42 8.93 K5 LD 204229.79+491559.1
20425+4916 ARG 39 AB 2010 45 181 14.2 8.42 8.93 K5 NLD 204229.79+491559.1
20425+4916 ARG 39 AB 2012 49 182 14.7 8.42 8.93 K5 NLD 204229.79+491559.1
20425+4916 ARG 39 AB 2013 52 182 14.8 8.42 8.93 K5 NLD 204229.79+491559.1
20425+4916 ARG 39 AB 2015 53 183 15.1 8.42 8.93 K5 NL 204229.79+491559.1

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