19490+4423 A   718BC

 
 
19h 49m 00.90s +44 22' 45.1" P.A. 26 sep 0.2 mag 8.20,8.70 Sp B8III dist. 854.7 pc (2788.03 l.y.)
 
 
Coord 2000
19490+4423
Discov num
A   718
Comp
BC
Coord arcsec 2000
19 49 00.90 +44 22 45.1
Date first
1904
Date last
2008
Obs
19
Pa first
52
Pa last
26
P.A. Now (θ)
26°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
8.20
Mag sec
8.70
delta mag (ΔM)
0.5
Spectral class
B8III (blue-white)
Pri motion ra
+006
Sec motion ra
+006
Pri motion dec
-001
Sec motion dec
-001
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
19490+4423 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 48866 19490+4423 STF2588 A,BC 1783 2013 37 159 9.8 7.74 8.12 0.38
Show 48866 19490+4423 A 718 BC 1904 2008 19 26 0.2 8.20 8.70 0.50 <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
26.1
Precise sep
0.22
Constellation
Cygnus
SAO
48866
HIP
97498
Tycho2
3148-00155-1
HD
187613
BD
BD+44 3261
Distance
854.7
Distance ly
2788.03
last precise pa
26.1
last precise sep
0.22
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19490+4423 A 718 BC 1987 18 32 0.2 8.20 8.70 194900.90+442245.1
19490+4423 A 718 BC 2008 19 26 0.2 8.20 8.70 N 194900.90+442245.1

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