18545+0154 STTA176AC

 
 
18h 54m 30.59s +01 53' 51.5" P.A. 4 sep 155.5 mag 7.45,10.81 Sp F5
 
 
Coord 2000
18545+0154
Discov num
STTA176
Comp
AC
Coord arcsec 2000
18 54 30.59 +01 53 51.5
Date first
1909
Date last
2015
Obs
10
Pa first
5
Pa last
4
P.A. Now (θ)
Sep first
150.4
Sep last
155.5
Sep. Now (ρ)
155.5"
Mag pri
7.45
Mag sec
10.81
delta mag (ΔM)
3.36
Spectral class
F5 (yellow-white)
Pri motion ra
+006
Sec motion ra
-005
Pri motion dec
-062
Sec motion dec
-010
Notes
This double is not physical.
 
 
18545+0154 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18545+0154 STTA176 AB 1874 2017 31 112 94.0 7.45 7.51 0.06
Show 18545+0154 STTA176 AC 1909 2015 10 4 155.5 7.45 10.81 3.36 <===
Show 18545+0154 STTA176 BD 1909 2015 10 358 150.2 7.51 11.00 3.49
Show 18545+0154 STTA176 CD 1909 2015 9 119 82.0 10.81 11.00 0.19
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
SAO
204786
Tycho2
7789-00964-1
last precise pa
4.3
last precise sep
155.452
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18545+0154 STTA176 AC 2002 8 4 155.3 7.45 10.81 D 185430.59+015351.5
18545+0154 STTA176 AC 2015 10 4 155.5 7.45 10.81 F5 185430.59+015351.5

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