21148+3803 AGC 13 AF

 
 
21h 14m 47.49s +38° 02' 43.1" P.A. 184.00 sep 89.5 mag 3.83,11.95 Sp F3V+M2.5V dist. 20.34 pc (66.35 l.y.)
 
 
Coord 2000 21148+3803 Discov num AGC  13 Comp AF Coord arcsec 2000 21 14 47.49 +38 02 43.1
Date first 1912 Date last 2012 Obs 37
Pa first 185 Pa last 184.2 P.A. Now (θ) 184.2°
Sep first 89.9 Sep last 89.5 Sep. Now (ρ) 89.5"
Mag pri 3.83 Mag sec 11.95 delta mag (ΔM) 8.12 Spectral class F3V+M2.5V (yellow-white/red)
Pri motion ra +196 Sec motion ra +152
Pri motion dec +410 Sec motion dec +424
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.102 (< 0.3, Physical double)
This double is physical.
 
 
21148+3803 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Tau Cyg 71121 21 14 47 +38 02 43 AGC 13 AB 2017 358 190 1.1 3.83 6.57 2.74 Y
Show 71121 21 14 47 +38 02 43 AGC 13 AC 2012 11 211 73.0 3.83 12.20 8.37
Show 71121 21 14 47 +38 02 43 AGC 13 AB,D 2004 15 208 205.4 3.83 9.94 6.11
Show 71121 21 14 47 +38 02 43 AGC 13 AE 2012 6 257 86.9 3.83 12.40 8.57
Show 71121 21 14 47 +38 02 43 AGC 13 AF 2012 37 184 89.5 3.83 11.95 8.12 <===
Show 71121 21 14 47 +38 02 43 DAL 38 AG 2007 4 109 120.9 3.83 12.50 8.67
Show 71121 21 14 47 +38 02 43 LEP 100 AI 2002 2 77 534.5 3.83 16.02 12.19
Show 71121 21 14 47 +38 02 43 FYM 110 AJ 2012 3 127 49.7 3.83 14.00 10.17
Show 71121 21 14 47 +38 02 43 FYM 110 AK 2012 3 316 99.0 3.83 14.40 10.57
Show 71121 21 14 47 +38 02 43 FYM 110 AL 2012 2 290 32.8 3.83 14.90 11.07
Show 21 14 57 +38 02 09 DAL 38 GH 2015 7 108 8.6 12.50 13.20 0.70
Show 21 14 47 +38 01 14 JOD 20 Fa,Fb 2018 4 349 0.9 12.20 13.80 1.60
13-fold system
13 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 71121 HIP 104887 Tycho2 3169-03876-1
HD 202444 HR 8130 GC 29723 ADS 14787
GL Gl 822.1A BD BD+37 4240 Bayer Tau Cygni Bayer name Tau Cyg
Flamsteed 65 Cygni Flamsteed name 65 Cyg Distance 20.34 Distance ly 66.35
Bayer greek τ Cyg