20104+3644 SEI 945AB

 
 
20h 10m 26.44s +36 44' 01.2" P.A. 276 sep 5.9 mag 9.50,11.00 Sp B8
 
 
Coord 2000
20104+3644
Discov num
SEI 945
Comp
AB
Coord arcsec 2000
20 10 26.44 +36 44 01.2
Date first
1896
Date last
2015
Obs
12
Pa first
276
Pa last
276
P.A. Now (θ)
276°
Sep first
6.6
Sep last
5.9
Sep. Now (ρ)
5.9"
Mag pri
9.50
Mag sec
11.00
delta mag (ΔM)
1.5
Spectral class
B8 (blue-white)
Pri motion ra
-001
Sec motion ra
+009
Pri motion dec
-007
Sec motion dec
-007
Notes
N (See Notes)
rPM=0.877
This double is not physical.
 
 
20104+3644 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20104+3644 SEI 945 AB 1896 2015 12 276 5.9 9.50 11.00 1.50 <===
Show 20104+3644 SEI 946 AC 1896 2014 5 64 13.7 9.50 11.00 1.50
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
275.7
Precise sep
5.902
Constellation
Cygnus
Tycho2
2683-02793-1
Gaia DR2
47770108160
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20104+3644 SEI 945 AB 2006 5 274 6.2 9.50 11.00 D 201026.44+364401.2
20104+3644 SEI 945 AB 2014 7 277 6.0 9.50 11.00 N 201026.44+364401.2
20104+3644 SEI 945 AB 2015 8 275 5.9 9.50 11.00 B8 N 201026.44+364401.2

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