19500+1757 H 4  99AC

 
 
19h 49m 59.91s +17 57' 26.0" P.A. 256.00 sep 68.8 mag 7.99,9.10 Sp B7Vp
 
 
Coord 2000
19500+1757
Discov num
H 4  99
Comp
AC
Coord arcsec 2000
19 49 59.91 +17 57 26.0
Date first
1879
Date last
2018
Obs
23
Pa first
256
Pa last
256
P.A. Now (θ)
256°
Sep first
69.5
Sep last
68.8
Sep. Now (ρ)
68.8"
Mag pri
7.99
Mag sec
9.10
delta mag (ΔM)
1.11
Spectral class
B7Vp (blue-white)
Pri motion ra
+001
Sec motion ra
+002
Pri motion dec
-012
Sec motion dec
-011
Notes
N (See Notes)
rPM=0.117 (< 0.3, Physical double)
This double is physical.
 
 
19500+1757 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 105324 19 49 60 +17 57 26 H 4 99 AB 2018 17 83 25.6 7.99 11.07 3.08
Show 105324 19 49 60 +17 57 26 H 4 99 AC 2018 23 256 68.8 7.99 9.10 1.11 <===
Show 105324 19 49 60 +17 57 26 H 4 99 AD 2018 11 340 44.1 7.99 13.23 5.24
Show 105324 19 49 60 +17 57 26 ABH 126 AE 2018 10 143 71.0 7.99 13.42 5.43
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
255.5
Precise sep
68.76
Constellation
Sagitta
SAO
105324
Tycho2
1619-02489-1
Gaia DR2
1821439903076671488
HD
187566
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19500+1757 H 4 99 AC 2003 16 256 69.1 7.99 9.10 B7Vp N D 194959.91+175726.0
19500+1757 H 4 99 AC 2012 18 256 68.6 7.99 9.10 B7Vp N D 194959.91+175726.0
19500+1757 H 4 99 AC 2013 19 256 68.5 7.99 9.10 B7Vp N 194959.91+175726.0
19500+1757 H 4 99 AC 2015 22 256 68.7 7.99 9.10 B7Vp N 194959.91+175726.0
19500+1757 H 4 99 AC 2018 23 256 68.8 7.99 9.10 B7Vp N 194959.91+175726.0

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