21556+2823 MLB 577BC

 
 
21h 55m 34.30s +28 23' 54.1" P.A. 20 sep 7 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
2010
Obs
4
Pa first
25
Pa last
20
P.A. Now (θ)
20°
Sep first
5.7
Sep last
7.0
Sep. Now (ρ)
7"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21556+2823 MLB 577 AB 1899 2010 6 300 48.8 10.57 12.41 1.84
Show 21556+2823 MLB 577 BC 1928 2010 4 20 7.0 11.10 12.60 1.50 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
19.8
Precise sep
7.04
Cdsa2 id
MLB 577 BC
Constellation
Pegasus
Ra deg
21.926194444444445
De deg
28.39836111111111
last precise pa
19.8
last precise sep
7.04
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21556+2823 MLB 577 BC 1997 2 22 6.0 11.00 12.50 D 215534.30+282354.1
21556+2823 MLB 577 BC 2010 3 20 7.0 11.00 12.50 D 215534.30+282354.1

If you need more information about this double, apply for a data request form to the WDS.