17500+4157 STF2237

 
 
17h 49m 58.77s +41 57' 18.6" P.A. 7 sep 20.5 mag 8.08,9.96 Sp F2 dist. 114.55 pc (373.66 l.y.)
 
 
Coord 2000
17500+4157
Discov num
STF2237
Comp
Coord arcsec 2000
17 49 58.77 +41 57 18.6
Date first
1829
Date last
2010
Obs
27
Pa first
8
Pa last
7
P.A. Now (θ)
Sep first
20.4
Sep last
20.5
Sep. Now (ρ)
20.5"
Mag pri
8.08
Mag sec
9.96
delta mag (ΔM)
1.88
Spectral class
F2 (yellow-white)
Pri motion ra
+015
Sec motion ra
+016
Pri motion dec
-042
Sec motion dec
-040
Notes
rPM=0.05 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
6.5
Precise sep
20.46
Constellation
Hercules
SAO
46991
HIP
87274
Tycho2
3096-00124-1
HD
162622
BD
BD+42 2929
Distance
114.55
Distance ly
373.66
last precise pa
6.4
last precise sep
20.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17500+4157 STF2237 2006 25 7 20.4 8.08 9.96 F2 D 174958.77+415718.6
17500+4157 STF2237 2010 27 7 20.4 8.08 9.96 F2 174958.77+415718.6

If you need more information about this double, apply for a data request form to the WDS.