17508+4824 BU  964

 
 
17h 50m 47.15s +48 23' 52.6" P.A. 154 sep 1.1 mag 8.44,11.25 Sp K0 dist. 321.54 pc (1048.86 l.y.)
 
 
Coord 2000
17508+4824
Discov num
BU  964
Comp
Coord arcsec 2000
17 50 47.15 +48 23 52.6
Date first
1879
Date last
2010
Obs
7
Pa first
159
Pa last
154
P.A. Now (θ)
154°
Sep first
1.0
Sep last
1.1
Sep. Now (ρ)
1.1"
Mag pri
8.44
Mag sec
11.25
delta mag (ΔM)
2.81
Spectral class
K0 (yellow-orange)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
+023
Sec motion dec
+021
Notes
rPM=0.087 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
154.1
Precise sep
1.135
Constellation
Hercules
SAO
47007
HIP
87340
Tycho2
3515-01256-1
HD
162879
BD
BD+48 2584
Distance
321.54
Distance ly
1048.86
last precise pa
154.1
last precise sep
1.135
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17508+4824 BU 964 1991 6 156 1.1 8.44 11.25 K0 D 175047.15+482352.6
17508+4824 BU 964 2010 7 154 1.1 8.44 11.25 K0 D 175047.15+482352.6

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