17004+2818 LDS4717

 
 
17h 00m 25.91s +28 17' 09.0" P.A. 121 sep 18.6 mag 16.30,18.00 Sp M1+M3
 
 
Coord 2000
17004+2818
Discov num
LDS4717
Comp
Coord arcsec 2000
17 00 25.91 +28 17 09.0
Date first
1960
Date last
2004
Obs
3
Pa first
148
Pa last
121
P.A. Now (θ)
121°
Sep first
18.0
Sep last
18.6
Sep. Now (ρ)
18.6"
Mag pri
16.30
Mag sec
18.00
delta mag (ΔM)
1.7
Spectral class
M1+M3 (red/red)
Pri motion ra
-132
Sec motion ra
-132
Pri motion dec
+016
Sec motion dec
+006
Notes
V (Proper motion indicates physical)
rPM=0.075 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
120.8
Precise sep
18.58
Constellation
Hercules
Tycho2
2071-00298-1
last precise pa
120.8
last precise sep
18.58
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17004+2818 LDS4717 1960 1 148 18.0 17.00 18.30 170015.00+281800.0
17004+2818 LDS4717 1999 2 121 18.6 16.30 18.00 I 170025.91+281709.0
17004+2818 LDS4717 2004 3 121 18.6 16.30 18.00 M1+M3 V 170025.91+281709.0

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