21441+2845 STF2822BD

 
 
21h 44m 08.46s +28 44' 34.6" P.A. 45 sep 196.7 mag 6.18,6.94 Sp G2V
 
 
Coord 2000
21441+2845
Discov num
STF2822
Comp
BD
Coord arcsec 2000
21 44 08.46 +28 44 34.6
Date first
1823
Date last
2012
Obs
24
Pa first
60
Pa last
45
P.A. Now (θ)
45°
Sep first
213.9
Sep last
196.7
Sep. Now (ρ)
196.7"
Mag pri
6.18
Mag sec
6.94
delta mag (ΔM)
0.76
Spectral class
G2V (yellow)
Pri motion ra
+260
Sec motion ra
-001
Pri motion dec
-243
Sec motion dec
-054
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.905
This double is not physical.
 
 
21441+2845 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Mu1 Cyg 89940 21441+2845 STF2822 AB 1777 2016 724 324 1.5 4.75 6.18 1.43 Y
Show 21441+2845 STF2822 AC 1878 2012 16 292 76.6 4.75 12.93 8.18
Show 89939 21441+2845 STF2822 AD 1800 2014 54 44 196.9 4.75 6.94 2.19
Show 21441+2845 FYM 25 AF 1999 2012 3 72 111.5 4.75 12.64 7.89
Show 21441+2845 FYM 25 AG 1999 2012 3 73 168.1 4.75 13.77 9.02
Show 21441+2845 STF2822 BD 1823 2012 24 45 196.7 6.18 6.94 0.76 <===
Show 21441+2845 ES 521 DE 1907 2015 6 286 17.5 6.94 13.13 6.19
Show 21441+2845 FYM 25 DG 1999 2012 3 164 89.6 6.94 13.77 6.83
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
45
Precise sep
196.7
Constellation
Cygnus
last precise pa
45
last precise sep
196.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21441+2845 STF2822 BD 1991 23 46 198.7 6.18 6.94 A5 N 214408.46+284434.6
21441+2845 STF2822 BD 1999 24 45 198.1 6.18 6.94 A5 NU 214408.46+284434.6
21441+2845 STF2822 BD 2002 25 45 198.0 6.18 6.94 A5 NU 214408.46+284434.6
21441+2845 STF2822 BD 2012 26 45 196.7 6.18 6.94 A5 NU 214408.46+284434.6

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