17449+3108 STF2213

 
 
17h 44m 50.81s +31 07' 54.5" P.A. 328 sep 4.7 mag 8.15,8.96 Sp F8 dist. 124.69 pc (406.74 l.y.)
 
 
Coord 2000
17449+3108
Discov num
STF2213
Comp
Coord arcsec 2000
17 44 50.81 +31 07 54.5
Date first
1825
Date last
2017
Obs
95
Pa first
336
Pa last
328
P.A. Now (θ)
328°
Sep first
5.0
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
8.15
Mag sec
8.96
delta mag (ΔM)
0.81
Spectral class
F8 (yellow-white)
Pri motion ra
-018
Sec motion ra
-027
Pri motion dec
-007
Sec motion dec
+011
Notes
rPM=0.69
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
328.4
Precise sep
4.741
Constellation
Hercules
SAO
66298
HIP
86861
Tycho2
2607-00579-1
HD
161550
BD
BD+31 3087
Distance
124.69
Distance ly
406.74
last precise pa
328.4
last precise sep
4.741
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17449+3108 STF2213 2007 88 328 4.9 8.15 8.96 F8 D 174450.81+310754.5
17449+3108 STF2213 2008 91 328 4.6 8.15 8.96 F8 D 174450.81+310754.5
17449+3108 STF2213 2017 95 328 4.7 8.15 8.96 F8 174450.81+310754.5

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