20125+5128 AC   17AC

 
 
20h 12m 31.73s +51 27' 49.0" P.A. 9.00 sep 84.8 mag 6.17,12.63 Sp K2.5III dist. 106.16 pc (346.29 l.y.)
 
 
Coord 2000
20125+5128
Discov num
AC   17
Comp
AC
Coord arcsec 2000
20 12 31.73 +51 27 49.0
Date first
1913
Date last
2015
Obs
5
Pa first
8
Pa last
9
P.A. Now (θ)
Sep first
83.2
Sep last
84.8
Sep. Now (ρ)
84.8"
Mag pri
6.17
Mag sec
12.63
delta mag (ΔM)
6.46
Spectral class
K2.5III (yellow-orange)
Pri motion ra
-015
Sec motion ra
+001
Pri motion dec
-015
Sec motion dec
-004
Notes
rPM=0.915
This double is not physical.
 
 
20125+5128 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 32354 20125+5128 AC 17 AB 1859 2015 15 82 4.4 6.17 10.55 4.38
Show 32354 20125+5128 AC 17 AC 1913 2015 5 9 84.8 6.17 12.63 6.46 <===
Show 32354 20125+5128 AC 17 AD 1913 2015 5 80 75.1 6.17 12.80 6.63
Show 32354 20125+5128 AC 17 AE 1897 2015 8 148 130.4 6.17 10.78 4.61
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
8.5
Precise sep
84.762
Constellation
Cygnus
SAO
32354
HIP
99579
Tycho2
3571-02335-1
Gaia DR2
14133708544
HD
192439
HR
7726
BD
BD+51 2796
Distance
106.16
Distance ly
346.29
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20125+5128 AC 17 AC 2000 3 9 84.7 6.17 12.80 K2.5III D 201231.73+512749.0
20125+5128 AC 17 AC 2003 4 8 84.9 6.17 12.80 K2.5III D 201231.73+512749.0
20125+5128 AC 17 AC 2015 5 9 84.8 6.17 12.63 K2.5III 201231.73+512749.0

If you need more information about this double, apply for a data request form to the WDS.