18453+4005 ROE  50AB

 
 
18h 45m 19.87s +40 04' 58.4" P.A. 282 sep 4.7 mag 10.80,11.70
 
 
Coord 2000
18453+4005
Discov num
ROE  50
Comp
AB
Coord arcsec 2000
18 45 19.87 +40 04 58.4
Date first
1894
Date last
2002
Obs
8
Pa first
287
Pa last
282
P.A. Now (θ)
282°
Sep first
3.4
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
10.80
Mag sec
11.70
delta mag (ΔM)
0.9
Spectral class
Pri motion ra
-013
Sec motion ra
Pri motion dec
-074
Sec motion dec
Notes
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
281.6
Precise sep
4.679
Constellation
Lyra
Tycho2
3122-00298-1
last precise pa
281.6
last precise sep
4.679
 
 
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 AB 2002 7 282 4.6 10.82 11.70 D 184519.87+400458.4

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