20591+0418 STF 2737 BC

 
 
20h 59m 04.46s +04° 17' 36.6" P.A. 66.00 sep 10.6 mag 6.31,7.05 Sp F6IV dist. 54.08 pc (176.41 l.y.)
 
 
Coord 2000 20591+0418 Discov num STF2737 Comp BC Coord arcsec 2000 20 59 04.46 +04 17 36.6
Date first 1780 Date last 2019 Obs 19
Pa first 84 Pa last 65.6 P.A. Now (θ) 65.6°
Sep first 9.4 Sep last 10.578 Sep. Now (ρ) 10.578"
Mag pri 6.31 Mag sec 7.05 delta mag (ΔM) 0.74 Spectral class F6IV (yellow-white)
Pri motion ra -113 Sec motion ra -113
Pri motion dec -150 Sec motion dec -150
Notes N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
20591+0418 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 126428 20 59 05 +04 17 38 STF 2737 AB 2021 487 125 0.0 5.96 6.31 0.35 Y
Show Eps Equ 126428 20 59 05 +04 17 38 STF 2737 AB,C 2019 306 67 10.6 5.30 7.05 1.75
Show 126428 20 59 05 +04 17 38 STF 2737 AD 2013 4 293 69.3 5.96 13.10 7.14
Show 126428 20 59 04 +04 17 37 STF 2737 BC 2019 19 66 10.6 6.31 7.05 0.74 <===
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Equuleus SAO 126428 HIP 103569 Tycho2 0521-02814-2
HD 199766 HR 8034 GC 29276 ADS 14499
BD BD+03 4473 Bayer Epsilon Equulei Bayer name Eps Equ Flamsteed 1 Equulei
Flamsteed name 1 Equ Distance 54.08 Distance ly 176.41 Bayer greek ε Equ