19399+3001 SLE 661

 
 
19h 39m 51.78s +30 00' 34.0" P.A. 158 sep 10.9 mag 9.58,13.50 Sp B9
 
 
Coord 2000
19399+3001
Discov num
SLE 661
Comp
Coord arcsec 2000
19 39 51.78 +30 00 34.0
Date first
1984
Date last
2002
Obs
3
Pa first
159
Pa last
158
P.A. Now (θ)
158°
Sep first
10.9
Sep last
10.9
Sep. Now (ρ)
10.9"
Mag pri
9.58
Mag sec
13.50
delta mag (ΔM)
3.92
Spectral class
B9 (blue-white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
157.7
Precise sep
10.916
Constellation
Cygnus
Tycho2
2656-04864-1
HD
332384
last precise pa
157.7
last precise sep
10.916
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19399+3001 SLE 661 1998 2 158 10.9 9.58 10.80 D 193951.78+300034.0
19399+3001 SLE 661 2002 3 158 10.9 9.58 13.50 D 193951.78+300034.0

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