19500+4509 ES 23 AB

19h 49m 59.38s +45° 09' 05.4" P.A. 136.00 sep 8.6 mag 8.27,12.60 Sp K0 dist. 606.06 pc (1976.97 l.y.)

Coord 2000 19500+4509 Discov num ES   23 Comp AB Coord arcsec 2000 19 49 59.38 +45 09 05.4
Date first 1892 Date last 2021 Obs 16
Pa first 139 Pa last 136.3 P.A. Now (θ) 136.3°
Sep first 7.7 Sep last 8.62 Sep. Now (ρ) 8.62"
Mag pri 8.27 Mag sec 12.60 delta mag (ΔM) 4.33 Spectral class K0 (yellow-orange)
Pri motion ra -007 Sec motion ra -006
Pri motion dec -007 Sec motion dec -010
Notes




rPM=0.271 (< 0.3, Physical double)

This double is physical.



19500+4509 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 48880 19 49 59 +45 09 05 ES 23 AB 2021 16 136 8.6 8.27 12.60 4.33 <===
Show 48880 19 49 59 +45 09 05 ES 23 AC 2015 8 97 13.1 8.27 15.00 6.73
Show HD 187810 48880 19 49 59 +45 09 05 ES 23 AD 2021 23 327 30.7 8.27 10.01 1.74


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Cygnus SAO 48880 HIP 97578 Tycho2 3557-00108-1
Gaia DR2 2079343480758592256 HD 187810 BD BD+44 3265 Distance 606.06
Distance ly 1976.97