20210+3919 SEI1097AB

 
 
20h 21m 02.17s +39 17' 33.7" P.A. 44 sep 27.2 mag 11.20,12.19
 
 
Coord 2000
20210+3919
Discov num
SEI1097
Comp
AB
Coord arcsec 2000
20 21 02.17 +39 17 33.7
Date first
1892
Date last
2015
Obs
23
Pa first
51
Pa last
44
P.A. Now (θ)
44°
Sep first
23.3
Sep last
27.2
Sep. Now (ρ)
27.2"
Mag pri
11.20
Mag sec
12.19
delta mag (ΔM)
0.99
Spectral class
Pri motion ra
-004
Sec motion ra
+004
Pri motion dec
-022
Sec motion dec
+013
Notes
L (Linear solution)
rPM=1.606
This double is not physical.
 
 
20210+3919 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20210+3919 SEI1097 AB 1892 2015 23 44 27.2 11.20 12.19 0.99 <===
Show 20210+3919 TOB 186 BC 1983 2015 10 51 16.2 12.19 12.09 0.10
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
44.3
Precise sep
27.193
Constellation
Cygnus
Tycho2
3152-00403-1
Gaia DR2
65949650688
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20210+3919 SEI1097 AB 1998 8 45 26.6 11.20 12.02 LD 202102.17+391733.7
20210+3919 SEI1097 AB 2008 9 46 27.2 11.20 12.02 LD 202102.17+391733.7
20210+3919 SEI1097 AB 2015 11 44 27.2 11.20 12.19 L 202102.17+391733.7

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