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
 
 
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
Cdsa2 id
SEI 718
Constellation
Cygnus
Ra deg
19.897719444444444
De deg
39.10716666666667
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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