17212+2542 A   232

 
 
17h 21m 13.91s +25 42' 27.4" P.A. 124 sep 0.4 mag 9.41,9.69 Sp F5
 
 
Coord 2000
17212+2542
Discov num
A   232
Comp
Coord arcsec 2000
17 21 13.91 +25 42 27.4
Date first
1901
Date last
2008
Obs
25
Pa first
99
Pa last
124
P.A. Now (θ)
124°
Sep first
0.4
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.41
Mag sec
9.69
delta mag (ΔM)
0.28
Spectral class
F5 (yellow-white)
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
-020
Sec motion dec
-020
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
124.3
Precise sep
0.395
Constellation
Hercules
SAO
85024
Tycho2
2078-00691-1
HD
157256
last precise pa
124.3
last precise sep
0.395
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17212+2542 A 232 1997 25 114 0.4 9.41 9.69 F5 172113.91+254227.4
17212+2542 A 232 2008 26 124 0.4 9.41 9.69 F5 172113.91+254227.4

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