17231+1454 BU 1284

 
 
17h 23m 04.99s +14 53' 55.4" P.A. 166 sep 1.9 mag 8.94,11.90 Sp A2
 
 
Coord 2000
17231+1454
Discov num
BU 1284
Comp
Coord arcsec 2000
17 23 04.99 +14 53 55.4
Date first
1899
Date last
1964
Obs
12
Pa first
180
Pa last
166
P.A. Now (θ)
166°
Sep first
1.2
Sep last
1.9
Sep. Now (ρ)
1.9"
Mag pri
8.94
Mag sec
11.90
delta mag (ΔM)
2.96
Spectral class
A2 (white)
Pri motion ra
+015
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
166.4
Precise sep
1.93
Constellation
Hercules
SAO
102784
Tycho2
1003-00015-1
HD
157494
last precise pa
166.4
last precise sep
1.93
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17231+1454 BU 1284 1964 11 166 1.9 8.94 11.90 A2 172304.99+145355.4

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