21291+4455 BU  448

 
 
21h 29m 06.33s +44 55' 23.0" sep 2 mag 6.95,11.00 Sp B8Ib
 
 
Coord 2000
21291+4455
Discov num
BU  448
Comp
Coord arcsec 2000
21 29 06.33 +44 55 23.0
Date first
1876
Date last
1876
Obs
0
Pa first
-1
Pa last
-1
P.A. Now (θ)
°
Sep first
2.0
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
6.95
Mag sec
11.00
delta mag (ΔM)
4.05
Spectral class
B8Ib (blue-white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
-1
Precise sep
2
Constellation
Cygnus
last precise pa
-1
last precise sep
2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21291+4455 BU 448 1876 0 -1 2.0 6.95 11.00 B8Ib 212906.33+445523.0

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