18178+4351 A   578AB

 
 
18H 17M 49.51S +43 50' 32.0" P.A. 167 SEP 1.8 MAG 9.13,12.24 SP F8 DIST. 129.03 PC (420.9 L.Y.)
 
 
Coord 2000
18178+4351
Discov num
A   578
Comp
AB
Coord arcsec 2000
18 17 49.51 +43 50 32.0
Date first
1903
Date last
2010
Obs
16
Pa first
176
Pa last
167
P.A. Now (θ)
167°
Sep first
1.7
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
9.13
Mag sec
12.24
delta mag (ΔM)
3.11
Spectral class
F8 (yellow-white)
Pri motion ra
-019
Sec motion ra
-020
Pri motion dec
-010
Sec motion dec
-010
Notes
V (Proper motion indicates physical)
This double is physical.
 
 
18178+4351 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47365 18178+4351 A 578 Aa,Ab 1903 2010 30 220 0.2 9.55 10.64 1.09 Y
Show 47365 18178+4351 A 578 AB 1903 2010 16 167 1.8 9.13 12.24 3.11 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Lyra
SAO
47365
HIP
89655
Tycho2
3115-00363-1
BD
BD+43 2938
Distance
129.03
Distance ly
420.9
last precise pa
166.9
last precise sep
1.79