17164+1303 LDS 990

 
 
17h 16m 23.32s +13 05' 42.7" P.A. 359 sep 4.4 mag 15.00,15.30
 
 
Coord 2000
17164+1303
Discov num
LDS 990
Comp
Coord arcsec 2000
17 16 23.32 +13 05 42.7
Date first
1936
Date last
2010
Obs
4
Pa first
0
Pa last
359
P.A. Now (θ)
359°
Sep first
4.0
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
15.00
Mag sec
15.30
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
-135
Sec motion ra
Pri motion dec
+122
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
358.9
Precise sep
4.42
Constellation
Hercules
last precise pa
358.9
last precise sep
4.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17164+1303 LDS 990 2000 2 359 4.4 15.00 15.30 D 171623.32+130542.7
17164+1303 LDS 990 2001 3 359 4.4 15.00 15.30 D 171623.32+130542.7
17164+1303 LDS 990 2010 4 359 4.4 15.00 15.30 171623.32+130542.7

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