19560+1753 HJ 2908AC

 
 
19h 56m 02.01s +17 53' 12.6" P.A. 12 sep 18.9 mag 8.33,13.30 Sp B9 dist. 729.93 pc (2381.03 l.y.)
 
 
Coord 2000
19560+1753
Discov num
HJ 2908
Comp
AC
Coord arcsec 2000
19 56 02.01 +17 53 12.6
Date first
1831
Date last
2001
Obs
8
Pa first
13
Pa last
12
P.A. Now (θ)
12°
Sep first
18.0
Sep last
18.9
Sep. Now (ρ)
18.9"
Mag pri
8.33
Mag sec
13.30
delta mag (ΔM)
4.97
Spectral class
B9 (blue-white)
Pri motion ra
-003
Sec motion ra
Pri motion dec
-008
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
19560+1753 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 105437 19560+1753 HO 116 AB 1886 2000 10 20 3.9 8.33 11.71 3.38
Show 105437 19560+1753 HJ 2908 AC 1831 2001 8 12 18.9 8.33 13.30 4.97 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
12
Precise sep
18.877
Constellation
Sagitta
SAO
105437
HIP
98087
Tycho2
1620-02894-1
HD
188726
BD
BD+17 4149
Distance
729.93
Distance ly
2381.03
last precise pa
12
last precise sep
18.877
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19560+1753 HJ 2908 AC 2000 6 12 18.8 8.33 13.30 B9 D 195602.01+175312.6
19560+1753 HJ 2908 AC 2001 8 12 18.5 8.33 13.30 B9 D 195602.01+175312.6

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