20099+2055 STF 2637 AD

 
 
20h 09m 56.61s +20 54' 53.2" P.A. 226.00 sep 172.8 mag 6.56,11.94 Sp F3V dist. 45.25 pc (147.61 l.y.)
 
 
Coord 2000 20099+2055 Discov num STF2637 Comp AD Coord arcsec 2000 20 09 56.61 +20 54 53.2
Date first 1887 Date last 2016 Obs 10
Pa first 229 Pa last 226.3 P.A. Now (θ) 226.3°
Sep first 158.0 Sep last 172.8 Sep. Now (ρ) 172.8"
Mag pri 6.56 Mag sec 11.94 delta mag (ΔM) 5.38 Spectral class F3V (yellow-white)
Pri motion ra +059 Sec motion ra -005
Pri motion dec +098 Sec motion dec -003
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=1.045
This double is not physical.
 
 
20099+2055 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show The Sge 88276 20 09 57 +20 54 53 STF 2637 AB 2020 143 331 11.6 6.56 8.85 2.29
Show 88276 20 09 57 +20 54 53 STF 2637 AC 2020 97 222 91.9 6.56 7.52 0.96
Show 88276 20 09 57 +20 54 53 STF 2637 AD 2016 10 226 172.8 6.56 11.94 5.38 <===
Show 88270 20 09 56 +20 55 04 STF 2637 BC 2017 60 215 95.7 8.85 7.52 1.33
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagitta SAO 88276 HIP 99352 Tycho2 1630-00481-1
Gaia DR2 1829590548393010560 HD 191570 HR 7705 GC 27987
ADS 13442 BD BD+20 4453 Bayer Theta Sagittae Bayer name The Sge
Flamsteed 17 Sagittae Flamsteed name 17 Sge Distance 45.25 Distance ly 147.61
Bayer greek θ Sge