19539+3906 SEI 718

 
 
19h 53m 51.79s +39 06' 25.8" P.A. 354 sep 15.8 mag 8.04,11.70 Sp B9 dist. 729.93 pc (2381.03 l.y.)
 
 
Coord 2000
19539+3906
Discov num
SEI 718
Comp
Coord arcsec 2000
19 53 51.79 +39 06 25.8
Date first
1896
Date last
2010
Obs
6
Pa first
351
Pa last
354
P.A. Now (θ)
354°
Sep first
15.3
Sep last
15.8
Sep. Now (ρ)
15.8"
Mag pri
8.04
Mag sec
11.70
delta mag (ΔM)
3.66
Spectral class
B9 (blue-white)
Pri motion ra
+002
Sec motion ra
+004
Pri motion dec
-002
Sec motion dec
+003
Notes
rPM=1.077
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
353.8
Precise sep
15.79
Constellation
Cygnus
SAO
69045
HIP
97913
Tycho2
3137-00479-1
HD
188501
BD
BD+38 3809
Distance
729.93
Distance ly
2381.03
last precise pa
353.8
last precise sep
15.79
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19539+3906 SEI 718 1998 4 354 15.8 8.20 11.70 B9 D 195351.79+390625.8
19539+3906 SEI 718 2002 5 354 16.0 8.20 11.70 B9 D 195351.79+390625.8
19539+3906 SEI 718 2010 6 354 15.2 8.04 11.70 B9 195351.79+390625.8

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