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
Cdsa2 id
STF 2822 BD
Constellation
Cygnus
Ra deg
21.735683333333334
De deg
28.742944444444447
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

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