18066+5001 COU 2276 Aa,Ab

18h 06m 37.28s +50° 00' 38.3" P.A. 4.00 sep 0.3 mag 9.77,10.00 Sp A5 dist. 684.93 pc (2234.24 l.y.)

Coord 2000 18066+5001 Discov num COU2276 Comp Aa,Ab Coord arcsec 2000 18 06 37.28 +50 00 38.3
Date first 1985 Date last 2019 Obs 9
Pa first 10 Pa last 4.3 P.A. Now (θ) 4.3°
Sep first 0.3 Sep last 0.279 Sep. Now (ρ) 0.279"
Mag pri 9.77 Mag sec 10.00 delta mag (ΔM) 0.23 Spectral class A5 (white)
Pri motion ra -001 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes




Nature of this double is uncertain.



18066+5001 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 30749 18 06 37 +50 00 38 COU 2276 Aa,Ab 2019 9 4 0.3 9.77 10.00 0.23 <===
Show HD 234561 30749 18 06 37 +50 00 38 STF 2290 AB 2019 19 351 4.0 9.23 11.20 1.97
Show 30749 18 06 37 +50 00 38 STF 2290 AC 2015 6 69 178.1 9.23 12.70 3.47


Quadruple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Hercules SAO 30749 HIP 88713 Tycho2 3532-01520-1
Gaia DR2 2123317481933143168 HD 234561 BD BD+49 2730 Distance 684.93
Distance ly 2234.24