21257+6325 MRI  38BC

 
 
21h 25m 40.86s +63 25' 27.1" P.A. 52 sep 8.5 mag 12.00,14.60
 
 
Coord 2000
21257+6325
Discov num
MRI  38
Comp
BC
Coord arcsec 2000
21 25 40.86 +63 25 27.1
Date first
1999
Date last
2011
Obs
3
Pa first
53
Pa last
52
P.A. Now (θ)
52°
Sep first
8.2
Sep last
8.5
Sep. Now (ρ)
8.5"
Mag pri
12.00
Mag sec
14.60
delta mag (ΔM)
2.6
Spectral class
Pri motion ra
-002
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21257+6325 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21257+6325 STI1028 AB 1905 2011 4 344 6.7 12.30 13.20 0.90
Show 21257+6325 MRI 38 BC 1999 2011 3 52 8.5 12.00 14.60 2.60 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
52.1
Precise sep
8.49
Constellation
Cepheus
last precise pa
52.1
last precise sep
8.49
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21257+6325 MRI 38 BC 2011 4 52 8.5 12.00 14.60 212540.86+632527.1

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