21291+4455 BU  448

 
 
21H 29M 06.33S +44 55' 23.0" SEP 2 MAG 6.95,11.00 SP B8IB DIST. 478.47 PC (1560.77 L.Y.)
 
 
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
 
 
Constellation
Cygnus
SAO
50925
HIP
106071
Tycho2
3194-01811-1
HD
204710
BD
BD+44 3832
Distance
478.47
Distance ly
1560.77
last precise pa
-1
last precise sep
2