21125+3834 SEI1445

 
 
21h 12m 29.51s +38 33' 59.4" P.A. 23 sep 28 mag 7.32,11.90 Sp B9
 
 
Coord 2000
21125+3834
Discov num
SEI1445
Comp
Coord arcsec 2000
21 12 29.51 +38 33 59.4
Date first
1895
Date last
2010
Obs
8
Pa first
23
Pa last
23
P.A. Now (θ)
23°
Sep first
27.9
Sep last
28.0
Sep. Now (ρ)
28"
Mag pri
7.32
Mag sec
11.90
delta mag (ΔM)
4.58
Spectral class
B9 (blue-white)
Pri motion ra
+001
Sec motion ra
+000
Pri motion dec
-004
Sec motion dec
-005
Notes
rPM=0.283 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
23.1
Precise sep
28.01
Constellation
Cygnus
last precise pa
23.1
last precise sep
28.01
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21125+3834 SEI1445 1999 6 23 28.6 7.20 10.50 B9 D 211229.51+383359.4
21125+3834 SEI1445 2002 7 23 28.1 7.20 10.50 B9 D 211229.51+383359.4
21125+3834 SEI1445 2010 8 23 28.0 7.32 11.90 B9 211229.51+383359.4

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