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
Cdsa2 id
HO 654 AC
Constellation
Vulpecula
Ra deg
19.295455555555556
De deg
23.025555555555556
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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