17196+3252 SEI 542

 
 
17h 19m 33.33s +32 51' 43.5" P.A. 155 sep 21.1 mag 10.94,12.20 Sp K0
 
 
Coord 2000
17196+3252
Discov num
SEI 542
Comp
Coord arcsec 2000
17 19 33.33 +32 51 43.5
Date first
1893
Date last
2016
Obs
10
Pa first
157
Pa last
155
P.A. Now (θ)
155°
Sep first
20.6
Sep last
21.1
Sep. Now (ρ)
21.1"
Mag pri
10.94
Mag sec
12.20
delta mag (ΔM)
1.26
Spectral class
K0 (yellow-orange)
Pri motion ra
+004
Sec motion ra
+010
Pri motion dec
-008
Sec motion dec
-009
Notes
rPM=0.452
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
154.6
Precise sep
21.052
Constellation
Hercules
Tycho2
2596-00114-1
last precise pa
154.6
last precise sep
21.052
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17196+3252 SEI 542 1998 7 154 20.8 10.94 12.03 K0 D 171933.33+325143.5
17196+3252 SEI 542 2002 8 154 20.8 10.94 12.03 K0 D 171933.33+325143.5
17196+3252 SEI 542 2010 9 153 20.7 10.94 12.20 K0 171933.33+325143.5
17196+3252 SEI 542 2016 10 155 21.1 10.94 12.20 K0 171933.33+325143.5

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