20108+3646 SEI 958

 
 
20h 10m 48.75s +36 45' 16.3" P.A. 323 sep 21.4 mag 10.00,10.21 Sp B8IV
 
 
Coord 2000
20108+3646
Discov num
SEI 958
Comp
Coord arcsec 2000
20 10 48.75 +36 45 16.3
Date first
1896
Date last
2015
Obs
15
Pa first
326
Pa last
323
P.A. Now (θ)
323°
Sep first
21.2
Sep last
21.4
Sep. Now (ρ)
21.4"
Mag pri
10.00
Mag sec
10.21
delta mag (ΔM)
0.21
Spectral class
B8IV (blue-white)
Pri motion ra
+000
Sec motion ra
-003
Pri motion dec
-005
Sec motion dec
-006
Notes
rPM=0.471
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
323.3
Precise sep
21.419
Constellation
Cygnus
Tycho2
2683-02849-1
Gaia DR2
21601946752
HD
228128
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20108+3646 SEI 958 2005 9 323 21.2 10.00 10.21 B8IV D 201048.75+364516.3
20108+3646 SEI 958 2010 11 323 21.4 10.00 10.21 B8IV 201048.75+364516.3
20108+3646 SEI 958 2015 12 323 21.4 10.00 10.21 B8IV 201048.75+364516.3

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