17567+4837 STF2258

 
 
17h 56m 42.22s +48 37' 08.5" P.A. 221 sep 2.1 mag 9.40,9.66 Sp G5
 
 
Coord 2000
17567+4837
Discov num
STF2258
Comp
Coord arcsec 2000
17 56 42.22 +48 37 08.5
Date first
1830
Date last
2013
Obs
33
Pa first
221
Pa last
221
P.A. Now (θ)
221°
Sep first
2.6
Sep last
2.1
Sep. Now (ρ)
2.1"
Mag pri
9.40
Mag sec
9.66
delta mag (ΔM)
0.26
Spectral class
G5 (yellow)
Pri motion ra
+006
Sec motion ra
Pri motion dec
-051
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
220.9
Precise sep
2.075
Constellation
Hercules
SAO
47081
Tycho2
3515-01228-1
last precise pa
220.9
last precise sep
2.075
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17567+4837 STF2258 2001 31 223 2.0 9.40 9.66 G5 175642.22+483708.5
17567+4837 STF2258 2009 32 221 2.1 9.40 9.66 G5 175642.22+483708.5
17567+4837 STF2258 2010 33 221 2.1 9.40 9.66 G5 175642.22+483708.5
17567+4837 STF2258 2013 33 221 2.1 9.40 9.66 G5 175642.22+483708.5

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