16571-1932 SHJ 240 AB (HD 152909)

16h 57m 04.00s -19° 32' 23.5" P.A. 233.00 sep 4.4 mag 6.59,7.59 Sp B6V+B7V dist. 177.62 pc (579.4 l.y.)

Coord 2000 16571-1932 Discov num SHJ 240 Comp AB Coord arcsec 2000 16 57 04.00 -19 32 23.5
Date first 1833 Date last 2019 Obs 66
Pa first 231 Pa last 233.4 P.A. Now (θ) 233.4°
Sep first 5.8 Sep last 4.381 Sep. Now (ρ) 4.381"
Mag pri 6.59 Mag sec 7.59 delta mag (ΔM) 1 Spectral class B6V+B7V (blue-white/blue-white)
Pri motion ra -019 Sec motion ra -019
Pri motion dec -007 Sec motion dec -007
Notes




Nature of this double is uncertain.



16571-1932 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 152909 160180 16 57 04 -19 32 24 SHJ 240 AB 2019 66 233 4.4 6.59 7.59 1.00 <===
Show 160180 16 57 04 -19 32 23 OCC 940 Ba,Bb 1995 0 -1 0.0 7.70 8.30 0.60


Triple system
2 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 152909 Constellation Ophiuchus SAO 160180 HIP 82951
Tycho2 6227-02897-2 Gaia DR2 4129004816188519424 HD 152909 HR 6294
ADS 10266 BD BD-19 4471 Distance 177.62 Distance ly 579.4