20207+3922 SEI1094

 
 
20h 20m 44.97s +39 21' 56.6" P.A. 316 sep 27.1 mag 9.15,11.70 Sp B0V
 
 
Coord 2000
20207+3922
Discov num
SEI1094
Comp
Coord arcsec 2000
20 20 44.97 +39 21 56.6
Date first
1892
Date last
2015
Obs
13
Pa first
319
Pa last
316
P.A. Now (θ)
316°
Sep first
27.9
Sep last
27.1
Sep. Now (ρ)
27.1"
Mag pri
9.15
Mag sec
11.70
delta mag (ΔM)
2.55
Spectral class
B0V (blue-white)
Pri motion ra
-004
Sec motion ra
-005
Pri motion dec
-007
Sec motion dec
-015
Notes
rPM=0.51
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
316.4
Precise sep
27.138
Constellation
Cygnus
Tycho2
3152-01528-1
Gaia DR2
09308447488
HD
193794
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20207+3922 SEI1094 1998 5 317 27.1 9.15 12.10 B0V D 202044.97+392156.6
20207+3922 SEI1094 2008 6 317 27.5 9.15 12.10 B0V D 202044.97+392156.6
20207+3922 SEI1094 2010 8 317 28.0 9.15 11.70 B0V 202044.97+392156.6
20207+3922 SEI1094 2015 9 316 27.1 9.15 11.70 B0V 202044.97+392156.6

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