18453+4005 ROE  50CF

 
 
18h 45m 21.83s +40 04' 44.2" P.A. 98 sep 9.7 mag 11.20,12.70
 
 
Coord 2000
18453+4005
Discov num
ROE  50
Comp
CF
Coord arcsec 2000
18 45 21.83 +40 04 44.2
Date first
1910
Date last
2013
Obs
6
Pa first
114
Pa last
98
P.A. Now (θ)
98°
Sep first
10.0
Sep last
9.7
Sep. Now (ρ)
9.7"
Mag pri
11.20
Mag sec
12.70
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
-003
Sec motion ra
-009
Pri motion dec
-008
Sec motion dec
-016
Notes
rPM=0.545
Nature of this double is uncertain.
 
 
18453+4005 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18453+4005 ROE 50 AB 1894 2002 8 282 4.7 10.80 11.70 0.90
Show 18453+4005 ROE 50 AC 1910 2013 6 120 26.5 10.66 12.53 1.87
Show 18453+4005 ROE 50 AD 1910 2013 6 253 96.3 10.66 12.91 2.25
Show 18453+4005 ROE 50 AE 1910 2013 6 196 93.7 10.66 13.89 3.23
Show 18453+4005 ROE 50 AF 1910 2013 6 114 35.8 10.80 12.70 1.90
Show 18453+4005 BKO 53 AG 2000 2013 5 155 52.3 10.66 15.21 4.55
Show 18453+4005 BKO 53 AH 2000 2013 5 300 35.3 10.66 15.60 4.94
Show 18453+4005 ROE 50 CF 1910 2013 6 98 9.7 11.20 12.70 1.50 <===
Octuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
97.6
Precise sep
9.67
Constellation
Lyra
last precise pa
97.6
last precise sep
9.67
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18453+4005 ROE 50 CF 2002 3 98 9.9 11.30 12.60 D 184521.83+400444.2
18453+4005 ROE 50 CF 2013 6 98 9.7 11.20 12.70 184521.83+400444.2

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