16362+5255 STF 2078 AB (17 Dra)

16h 36m 13.72s +52° 55' 27.8" P.A. 104.00 sep 2.9 mag 5.38,6.42 Sp B9.5V dist. 126.42 pc (412.38 l.y.)

Coord 2000 16362+5255 Discov num STF2078 Comp AB Coord arcsec 2000 16 36 13.72 +52 55 27.8
Date first 1781 Date last 2021 Obs 198
Pa first 114 Pa last 104.3 P.A. Now (θ) 104.3°
Sep first 4.0 Sep last 2.93 Sep. Now (ρ) 2.93"
Mag pri 5.38 Mag sec 6.42 delta mag (ΔM) 1.04 Spectral class B9.5V (blue-white)
Pri motion ra -012 Sec motion ra -016
Pri motion dec +027 Sec motion dec +032
Notes N (See Notes)




rPM=0.179 (< 0.3, Physical double)

This double is physical.



16362+5255 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 17 Dra 30013 16 36 14 +52 55 28 STF 2078 AB 2021 198 104 2.9 5.38 6.42 1.04 <===
Show 30013 16 36 14 +52 55 28 STFA 30 AC 2018 86 193 90.2 5.38 5.50 0.12
Show 30012 16 36 14 +52 55 27 STFA 30 BC 2017 47 194 90.1 6.42 5.50 0.92
Show 30012 16 36 11 +52 54 00 STFA 30 CD 2020 9 123 125.5 5.50 11.19 5.69


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name 17 Dra Constellation Draco SAO 30013 HIP 81292
Tycho2 3879-02960-2 Gaia DR2 1425769751741972352 HD 150117 HR 6185
GC 22352 ADS 10129 BD BD+53 1876 Flamsteed 17 Draconis
Flamsteed name 17 Dra Distance 126.42 Distance ly 412.38