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
Cdsa2 id
SEI 1445
Constellation
Cygnus
Ra deg
21.20819722222222
De deg
38.5665
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.