17178+4535 STF2152

 
 
17h 17m 45.83s +45 35' 00.2" P.A. 241 sep 1.7 mag 9.79,9.89 Sp F8
 
 
Coord 2000
17178+4535
Discov num
STF2152
Comp
Coord arcsec 2000
17 17 45.83 +45 35 00.2
Date first
1830
Date last
2015
Obs
32
Pa first
249
Pa last
241
P.A. Now (θ)
241°
Sep first
1.9
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
9.79
Mag sec
9.89
delta mag (ΔM)
0.1
Spectral class
F8 (yellow-white)
Pri motion ra
+063
Sec motion ra
+063
Pri motion dec
-056
Sec motion dec
-056
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
240.8
Precise sep
1.73
Constellation
Hercules
SAO
46618
Tycho2
3508-01520-1
last precise pa
240.8
last precise sep
1.73
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17178+4535 STF2152 1999 29 237 1.9 9.79 9.89 F8 171745.83+453500.2
17178+4535 STF2152 2009 30 237 1.9 9.79 9.89 F8 171745.83+453500.2
17178+4535 STF2152 2010 31 237 1.9 9.79 9.89 F8 171745.83+453500.2
17178+4535 STF2152 2014 30 238 2.0 9.79 9.89 F8 171745.83+453500.2
17178+4535 STF2152 2015 32 241 1.7 9.79 9.89 F8 171745.83+453500.2

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