18490-0828 HDS2666Aa,Ab

 
 
18H 48M 59.03S -08 27' 31.2" P.A. 258 SEP 0.2 MAG 8.08,9.59 SP B2V
 
 
Coord 2000
18490-0828
Discov num
HDS2666
Comp
Aa,Ab
Coord arcsec 2000
18 48 59.03 -08 27 31.2
Date first
1991
Date last
2013
Obs
2
Pa first
265
Pa last
258
P.A. Now (θ)
258°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
8.08
Mag sec
9.59
delta mag (ΔM)
1.51
Spectral class
B2V (blue-white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18490-0828 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18490-0828 HDS2666 Aa,Ab 1991 2013 2 258 0.2 8.08 9.59 1.51 <===
Show 18490-0828 STF2388 AB 1892 2016 9 344 53.6 7.81 10.94 3.13
Show 18490-0828 ABH 105 AD 1896 2016 6 157 43.8 7.81 12.62 4.81
Show 18490-0828 ABH 105 AE 1988 2016 5 275 72.2 7.81 12.93 5.12
Show 18490-0828 STF2388 BC 1892 2016 10 18 21.1 10.94 11.24 0.30
Sextuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Scutum
last precise pa
257.7
last precise sep
0.176