20379+4757 STF 2707 AB (HD 196808)

 
 
20h 37m 51.14s +47 56' 41.9" P.A. 29.00 sep 21.8 mag 7.94,9.45 Sp A0 dist. 172.12 pc (561.46 l.y.)
 
 
Coord 2000 20379+4757 Discov num STF2707 Comp AB Coord arcsec 2000 20 37 51.14 +47 56 41.9
Date first 1832 Date last 2015 Obs 34
Pa first 32 Pa last 29.4 P.A. Now (θ) 29.4°
Sep first 23.1 Sep last 21.767 Sep. Now (ρ) 21.767"
Mag pri 7.94 Mag sec 9.45 delta mag (ΔM) 1.51 Spectral class A0 (white)
Pri motion ra +003 Sec motion ra -002
Pri motion dec -001 Sec motion dec -004
Notes
rPM=1.304
This double is not physical.
 
 
20379+4757 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 196808 49879 20 37 51 +47 56 42 STF 2707 AB 2015 34 29 21.8 7.94 9.45 1.51 <===
Show 49879 20 37 51 +47 56 42 STF 2707 AC 2015 35 195 55.3 7.94 8.62 0.68
Show 49879 20 37 51 +47 56 42 ES 2697 AD 2015 7 192 17.5 7.94 14.30 6.36
Show 20 37 52 +47 57 01 GUI 33 BC 2015 30 199 76.6 9.45 8.62 0.83
Show 20 37 50 +47 55 48 HDS 2944 Ca,Cb 2008 3 29 0.4 8.75 12.31 3.56
Quintuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 196808 Constellation Cygnus SAO 49879 HIP 101804
Tycho2 3578-01530-1 Gaia DR2 2167668692928075136 HD 196808 GC 28738
BD BD+47 3153 Distance 172.12 Distance ly 561.46