21441+2845 STF 2822 AC

 
 
21h 44m 08.57s +28° 44' 33.4" P.A. 292.00 sep 76.6 mag 4.75,12.93 Sp F6V dist. 22.24 pc (72.55 l.y.)
 
 
Coord 2000 21441+2845 Discov num STF2822 Comp AC Coord arcsec 2000 21 44 08.57 +28 44 33.4
Date first 1878 Date last 2012 Obs 16
Pa first 263 Pa last 291.8 P.A. Now (θ) 291.8°
Sep first 35.3 Sep last 76.6 Sep. Now (ρ) 76.6"
Mag pri 4.75 Mag sec 12.93 delta mag (ΔM) 8.18 Spectral class F6V (yellow-white)
Pri motion ra +260 Sec motion ra
Pri motion dec -243 Sec motion dec
Notes N L U (See Notes, Linear solution, Proper motion indicates non-physical)
This double is not physical.
 
 
21441+2845 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Mu1 Cyg 89940 21 44 09 +28 44 33 STF 2822 AB 2020 735 325 1.6 4.75 6.18 1.43 Y
Show 89940 21 44 09 +28 44 33 STF 2822 AC 2012 16 292 76.6 4.75 12.93 8.18 <===
Show 89940 21 44 09 +28 44 33 STF 2822 AD 2019 56 43 197.0 4.75 6.94 2.19
Show 89940 21 44 09 +28 44 33 FYM 25 AF 2012 3 72 111.5 4.75 12.64 7.89
Show 89940 21 44 09 +28 44 33 FYM 25 AG 2012 3 73 168.1 4.75 13.77 9.02
Show 89944 21 44 08 +28 44 35 STF 2822 BD 2012 24 45 196.7 6.18 6.94 0.76
Show 89944 21 44 19 +28 46 54 ES 521 DE 2015 7 286 17.5 6.94 13.13 6.19
Show 89944 21 44 19 +28 46 54 FYM 25 DG 2012 3 164 89.6 6.94 13.77 6.83
Septuple system
7 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 89940 HIP 107310 Tycho2 2201-02078-1
HD 206827 HR 8310 GC 30437 ADS 15270
GL Gl 836.6A BD BD+28 4169 Bayer Mu 1 Cygni Bayer name Mu1 Cyg
Flamsteed 78 Cygni Flamsteed name 78 Cyg Distance 22.24 Distance ly 72.55
Bayer greek μ1 Cyg