17340-7808 RST3093AB

 
 
17H 33M 59.78S -78 08' 08.1" P.A. 246 SEP 0.4 MAG 8.85,9.52 SP A4V
 
 
Coord 2000
17340-7808
Discov num
RST3093
Comp
AB
Coord arcsec 2000
17 33 59.78 -78 08 08.1
Date first
1933
Date last
1991
Obs
3
Pa first
243
Pa last
246
P.A. Now (θ)
246°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
8.85
Mag sec
9.52
delta mag (ΔM)
0.67
Spectral class
A4V (white)
Pri motion ra
-004
Sec motion ra
-004
Pri motion dec
-011
Sec motion dec
-011
Notes
Nature of this double is uncertain.
 
 
17340-7808 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 257508 17340-7808 RST3093 AB 1933 1991 3 246 0.4 8.85 9.52 0.67 <===
Show 257508 17340-7808 HJ 4937 AB,C 1835 2000 4 223 34.7 9.35 12.84 3.49
Show 257508 17340-7808 DAW 217 AB,D 1918 2000 3 185 31.8 8.47 14.80 6.33
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Apus
SAO
257508
Tycho2
9448-01415-1
HD
157512
last precise pa
245.9
last precise sep
0.44