18429+4456 STF 2380 (HD 173399)

18h 42m 55.42s +44° 55' 30.9" P.A. 8.00 sep 25.5 mag 7.28,8.70 Sp G8III dist. 138.12 pc (450.55 l.y.)

Coord 2000 18429+4456 Discov num STF2380 Comp Coord arcsec 2000 18 42 55.42 +44 55 30.9
Date first 1831 Date last 2015 Obs 56
Pa first 10 Pa last 7.6 P.A. Now (θ) 7.6°
Sep first 25.8 Sep last 25.52 Sep. Now (ρ) 25.52"
Mag pri 7.28 Mag sec 8.70 delta mag (ΔM) 1.42 Spectral class G8III (yellow)
Pri motion ra -013 Sec motion ra -012
Pri motion dec -018 Sec motion dec -020
Notes N V (See Notes, Proper motion indicates physical)




rPM=0.096 (< 0.3, Physical double)

This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 173399 Constellation Lyra SAO 47727 HIP 91782
Tycho2 3130-02982-1 Gaia DR2 2117485191223202560 HD 173399 GC 25623
ADS 11616 DM BD+44 2974 BD BD+44 2973 Distance 138.12
Distance ly 450.55