19177+2302 HO  654AC

 
 
19h 17m 43.64s +23 01' 32.0" P.A. 118 sep 51.5 mag 5.43,10.40 Sp B0.5IV
 
 
Coord 2000
19177+2302
Discov num
HO  654
Comp
AC
Coord arcsec 2000
19 17 43.64 +23 01 32.0
Date first
1881
Date last
2013
Obs
7
Pa first
120
Pa last
118
P.A. Now (θ)
118°
Sep first
50.4
Sep last
51.5
Sep. Now (ρ)
51.5"
Mag pri
5.43
Mag sec
10.40
delta mag (ΔM)
4.97
Spectral class
B0.5IV (blue-white)
Pri motion ra
+002
Sec motion ra
+002
Pri motion dec
-004
Sec motion dec
-012
Notes
N (See Notes)
rPM=0.658
Nature of this double is uncertain.
 
 
19177+2302 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 2 Vul 87036 19177+2302 BU 248 AB 1875 2015 67 128 1.8 5.43 8.75 3.32
Show 19177+2302 HO 654 AC 1881 2013 7 118 51.5 5.43 10.40 4.97 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
118.2
Precise sep
51.47
Constellation
Vulpecula
last precise pa
118.2
last precise sep
51.47
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19177+2302 HO 654 AC 1997 5 119 51.1 5.43 10.40 B0.5IV D 191743.64+230132.0
19177+2302 HO 654 AC 2001 6 119 51.2 5.43 10.40 B0.5IV N D 191743.64+230132.0
19177+2302 HO 654 AC 2013 7 118 51.5 5.43 10.40 B0.5IV N 191743.64+230132.0

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