19551+3012 STT 390AC

 
 
19h 55m 06.50s +30 11' 41.6" P.A. 177 sep 16.4 mag 6.63,11.23 Sp B6V
 
 
Coord 2000
19551+3012
Discov num
STT 390
Comp
AC
Coord arcsec 2000
19 55 06.50 +30 11 41.6
Date first
1849
Date last
2013
Obs
15
Pa first
176
Pa last
177
P.A. Now (θ)
177°
Sep first
16.2
Sep last
16.4
Sep. Now (ρ)
16.4"
Mag pri
6.63
Mag sec
11.23
delta mag (ΔM)
4.6
Spectral class
B6V (blue-white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
19551+3012 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 69079 19551+3012 STT 390 AB 1849 2013 31 22 9.9 6.63 9.50 2.87
Show 19551+3012 STT 390 AC 1849 2013 15 177 16.4 6.63 11.23 4.60 <===
Show 19551+3012 WAL 121 AD 1944 2013 3 145 55.3 6.63 12.21 5.58
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
176.9
Precise sep
16.43
Cdsa2 id
STT 390 AC
Constellation
Cygnus
Ra deg
19.918472222222224
De deg
30.19488888888889
last precise pa
176.9
last precise sep
16.43
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19551+3012 STT 390 AC 2003 12 176 15.8 6.63 11.23 B6V D 195506.50+301141.6
19551+3012 STT 390 AC 2012 14 176 15.8 6.63 11.23 B6V D 195506.50+301141.6
19551+3012 STT 390 AC 2013 15 177 16.4 6.63 11.23 B6V 195506.50+301141.6

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