17278+4625 STF2177

 
 
17h 27m 48.32s +46 25' 16.4" P.A. 135 sep 3.6 mag 9.20,10.70 Sp F0
 
 
Coord 2000
17278+4625
Discov num
STF2177
Comp
Coord arcsec 2000
17 27 48.32 +46 25 16.4
Date first
1831
Date last
2011
Obs
22
Pa first
134
Pa last
135
P.A. Now (θ)
135°
Sep first
3.2
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
9.20
Mag sec
10.70
delta mag (ΔM)
1.5
Spectral class
F0 (yellow-white)
Pri motion ra
+014
Sec motion ra
+026
Pri motion dec
-006
Sec motion dec
-021
Notes
rPM=0.575
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
134.6
Precise sep
3.57
Constellation
Hercules
SAO
46736
Tycho2
3509-00759-1
HD
158570
last precise pa
134.6
last precise sep
3.57
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17278+4625 STF2177 2000 19 132 3.6 9.20 10.70 F0 172748.32+462516.4
17278+4625 STF2177 2009 20 134 3.7 9.20 10.70 F0 172748.32+462516.4
17278+4625 STF2177 2011 21 135 3.5 9.20 10.70 F0 172748.32+462516.4

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