19448+2916 ISM   4Aa,Ab

 
 
19h 44m 48.74s +29 15' 52.9" P.A. 167 mag 7.00,8.00 Sp F2Iab+B8V dist. 787.4 pc (2568.5 l.y.)
 
 
Coord 2000
19448+2916
Discov num
ISM   4
Comp
Aa,Ab
Coord arcsec 2000
19 44 48.74 +29 15 52.9
Date first
1949
Date last
1988
Obs
4
Pa first
119
Pa last
167
P.A. Now (θ)
167°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
7.00
Mag sec
8.00
delta mag (ΔM)
1
Spectral class
F2Iab+B8V (yellow-white/blue-white)
Pri motion ra
+000
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
19448+2916 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 87659 19448+2916 ISM 4 Aa,Ab 1949 1988 4 167 0.0 7.00 8.00 1.00 <===
Show SU Cyg 87659 19448+2916 WRH 23 AE 1895 2006 9 288 24.8 7.03 10.54 3.51
Show 87659 19448+2916 WRH 23 AF 1895 2006 8 18 70.9 7.03 10.88 3.85
Show 87659 19448+2916 WRH 23 AG 1895 2006 8 87 75.9 7.03 10.21 3.18
Show 87659 19448+2916 EVS 42 AH 2011 2011 1 87 25.2 6.90 16.90 10.00
Sextuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
166.7
Precise sep
0.041
Var name
SU Cyg
Constellation
Cygnus
SAO
87659
HIP
97150
Tycho2
2151-05896-1
HD
186688
HR
7518
BD
BD+28 3460
Distance
787.4
Distance ly
2568.5
last precise pa
166.7
last precise sep
0.041
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19448+2916 ISM 4 Aa,Ab 1988 4 167 0.0 7.00 8.00 F2Iab N 194448.74+291552.9

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