21556+2823 MLB 577 BC

21h 55m 34.30s +28° 23' 54.1" P.A. 18.00 sep 6.4 mag 11.10,12.60

Coord 2000 21556+2823 Discov num MLB 577 Comp BC Coord arcsec 2000 21 55 34.30 +28 23 54.1
Date first 1928 Date last 2015 Obs 8
Pa first 25 Pa last 18.1 P.A. Now (θ) 18.1°
Sep first 5.7 Sep last 6.371 Sep. Now (ρ) 6.371"
Mag pri 11.10 Mag sec 12.60 delta mag (ΔM) 1.5 Spectral class
Pri motion ra -006 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes




Nature of this double is uncertain.



21556+2823 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 55 37 +28 23 30 MLB 577 AB 2014 9 300 48.8 10.57 12.41 1.84
Show 21 55 34 +28 23 54 MLB 577 BC 2015 8 18 6.4 11.10 12.60 1.50 <===


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Pegasus Gaia DR2 1896146873419840256