20124+3804 SEI1000

 
 
20h 12m 23.20s +38 03' 50.3" P.A. 145 sep 19.1 mag 9.72,11.40 Sp B2III:
 
 
Coord 2000
20124+3804
Discov num
SEI1000
Comp
Coord arcsec 2000
20 12 23.20 +38 03 50.3
Date first
1896
Date last
2015
Obs
14
Pa first
150
Pa last
145
P.A. Now (θ)
145°
Sep first
19.3
Sep last
19.1
Sep. Now (ρ)
19.1"
Mag pri
9.72
Mag sec
11.40
delta mag (ΔM)
1.68
Spectral class
B2III: (blue-white)
Pri motion ra
-004
Sec motion ra
+003
Pri motion dec
-006
Sec motion dec
+001
Notes
rPM=1.373
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
144.8
Precise sep
19.054
Constellation
Cygnus
Tycho2
3151-02631-1
Gaia DR2
13858471296
HD
228289
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20124+3804 SEI1000 1998 6 145 19.1 9.72 11.40 B2III: D 201223.20+380350.3
20124+3804 SEI1000 2010 7 145 19.1 9.72 11.40 B2III: D 201223.20+380350.3
20124+3804 SEI1000 2015 10 145 19.1 9.72 11.40 B2III: 201223.20+380350.3

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