17459+2153 STT 335

 
 
17h 45m 54.77s +21 53' 17.4" P.A. 140 sep 25 mag 8.31,9.22 Sp A0 dist. 125 pc (407.75 l.y.)
 
 
Coord 2000
17459+2153
Discov num
STT 335
Comp
Coord arcsec 2000
17 45 54.77 +21 53 17.4
Date first
1830
Date last
2012
Obs
33
Pa first
145
Pa last
140
P.A. Now (θ)
140°
Sep first
18.0
Sep last
25.0
Sep. Now (ρ)
25"
Mag pri
8.31
Mag sec
9.22
delta mag (ΔM)
0.91
Spectral class
A0 (white)
Pri motion ra
-009
Sec motion ra
-009
Pri motion dec
+004
Sec motion dec
+005
Notes
N (See Notes)
rPM=0.097 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
139.6
Precise sep
25.01
Constellation
Hercules
SAO
85387
HIP
86941
Tycho2
1564-03983-1
HD
161658
BD
BD+21 3208
Distance
125
Distance ly
407.75
last precise pa
139.6
last precise sep
25.01
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17459+2153 STT 335 2003 30 140 24.7 8.31 9.22 A0 N D 174554.77+215317.4
17459+2153 STT 335 2012 32 140 25.0 8.31 9.22 A0 N D 174554.77+215317.4

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