19500+1757 H 4  99AD

 
 
19h 49m 59.91s +17 57' 26.0" P.A. 340 sep 44.3 mag 7.99,13.23 Sp B7Vp
 
 
Coord 2000
19500+1757
Discov num
H 4  99
Comp
AD
Coord arcsec 2000
19 49 59.91 +17 57 26.0
Date first
1879
Date last
2013
Obs
7
Pa first
340
Pa last
340
P.A. Now (θ)
340°
Sep first
50.0
Sep last
44.3
Sep. Now (ρ)
44.3"
Mag pri
7.99
Mag sec
13.23
delta mag (ΔM)
5.24
Spectral class
B7Vp (blue-white)
Pri motion ra
+001
Sec motion ra
+006
Pri motion dec
-012
Sec motion dec
-022
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.49
This double is not physical.
 
 
19500+1757 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19500+1757 H 4 99 AB 1782 2013 13 83 25.3 7.99 11.07 3.08
Show 19500+1757 H 4 99 AC 1879 2013 19 256 68.5 7.99 9.10 1.11
Show 19500+1757 H 4 99 AD 1879 2013 7 340 44.3 7.99 13.23 5.24 <===
Show 19500+1757 ABH 126 AE 1988 2013 6 144 70.4 7.99 13.42 5.43
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
339.9
Precise sep
44.26
Cdsa2 id
H 4 99 AD
Constellation
Sagitta
Ra deg
19.833308333333335
De deg
17.95722222222222
last precise pa
339.9
last precise sep
44.26
 
 
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 AD 2002 4 340 42.7 7.99 11.00 B7Vp N D 194959.91+175726.0
19500+1757 H 4 99 AD 2013 7 340 44.3 7.99 13.23 B7Vp NU 194959.91+175726.0

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