17173+2113 HU  668

 
 
17h 17m 15.75s +21 12' 44.4" P.A. 35 sep 1.3 mag 8.84,15.30 Sp F8
 
 
Coord 2000
17173+2113
Discov num
HU  668
Comp
Coord arcsec 2000
17 17 15.75 +21 12 44.4
Date first
1902
Date last
1946
Obs
4
Pa first
33
Pa last
35
P.A. Now (θ)
35°
Sep first
1.2
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
8.84
Mag sec
15.30
delta mag (ΔM)
6.46
Spectral class
F8 (yellow-white)
Pri motion ra
-006
Sec motion ra
Pri motion dec
-008
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
34.7
Precise sep
1.27
Constellation
Hercules
SAO
84976
Tycho2
1548-02209-1
HD
156537
last precise pa
34.7
last precise sep
1.27
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17173+2113 HU 668 1946 4 35 1.3 8.84 15.30 F8 171715.75+211244.4

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