17566+5129 BU 633 AB

 
 
17h 56m 36.38s +51° 29' 20.2" P.A. 152.00 sep 21.1 mag 2.23,13.40 Sp K5III dist. 47.3 pc (154.29 l.y.)
 
 
Coord 2000 17566+5129 Discov num BU  633 Comp AB Coord arcsec 2000 17 56 36.38 +51 29 20.2
Date first 1878 Date last 2018 Obs 12
Pa first 152 Pa last 152.3 P.A. Now (θ) 152.3°
Sep first 20.6 Sep last 21.08 Sep. Now (ρ) 21.08"
Mag pri 2.23 Mag sec 13.40 delta mag (ΔM) 11.17 Spectral class K5III (yellow-orange)
Pri motion ra -008 Sec motion ra
Pri motion dec -019 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
17566+5129 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 30653 17 56 36 +51 29 20 BU 633 AB 2018 12 152 21.1 2.23 13.40 11.17 <===
Show 30653 17 56 36 +51 29 20 BU 633 AC 2012 5 234 41.2 2.23 12.90 10.67
Show 30653 17 56 36 +51 29 20 BU 633 AD 2017 8 11 59.5 2.23 12.90 10.67
Show Eltanin 30653 17 56 36 +51 29 20 BU 633 AE 2018 9 235 96.0 2.23 11.90 9.67
Show 30653 17 56 36 +51 29 20 BU 633 AF 2018 12 114 126.0 2.38 11.67 9.29
Show 30653 17 56 36 +51 29 20 BU 633 AG 2018 9 28 143.6 2.38 11.23 8.85
Septuple system
7 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Eltanin Constellation Draco SAO 30653 HIP 87833
Tycho2 3523-01684-1 HD 164058 HR 6705 GC 24432
ADS 10923 BD BD+51 2282 Bayer Gamma Draconis Bayer name Gam Dra
Flamsteed 33 Draconis Flamsteed name 33 Dra FK5 676 Distance 47.3
Distance ly 154.29 Bayer greek γ Dra
Other names ETAMIN, RASTABAN, ZENITH STAR
Meaning sea monster