18455+2815 STF2381

 
 
18h 45m 30.77s +28 15' 24.3" P.A. 122 sep 8.5 mag 8.27,10.36 Sp G8III/IV dist. 259.74 pc (847.27 l.y.)
 
 
Coord 2000
18455+2815
Discov num
STF2381
Comp
Coord arcsec 2000
18 45 30.77 +28 15 24.3
Date first
1830
Date last
2008
Obs
21
Pa first
123
Pa last
122
P.A. Now (θ)
122°
Sep first
8.5
Sep last
8.5
Sep. Now (ρ)
8.5"
Mag pri
8.27
Mag sec
10.36
delta mag (ΔM)
2.09
Spectral class
G8III/IV (yellow)
Pri motion ra
+016
Sec motion ra
+017
Pri motion dec
+010
Sec motion dec
+007
Notes
rPM=0.168 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
122.1
Precise sep
8.5
Constellation
Lyra
SAO
86407
HIP
92031
Tycho2
2120-01126-1
HD
173702
BD
BD+28 3073
Distance
259.74
Distance ly
847.27
last precise pa
122.1
last precise sep
8.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18455+2815 STF2381 2008 19 122 8.5 8.27 10.36 G8III/IV D 184530.77+281524.3

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