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
Cdsa2 id
ROE 50 CF
Constellation
Lyra
Ra deg
18.75606388888889
De deg
40.078944444444446
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

If you need more information about this double, apply for a data request form to the WDS.