17397+2746 LDS 999AB

 
 
17h 39m 30.70s +27 45' 45.8" P.A. 21 sep 56.4 mag 11.12,12.72 Sp M1V dist. 24.97 pc (81.45 l.y.)
 
 
Coord 2000
17397+2746
Discov num
LDS 999
Comp
AB
Coord arcsec 2000
17 39 30.70 +27 45 45.8
Date first
1936
Date last
2016
Obs
5
Pa first
21
Pa last
21
P.A. Now (θ)
21°
Sep first
53.0
Sep last
56.4
Sep. Now (ρ)
56.4"
Mag pri
11.12
Mag sec
12.72
delta mag (ΔM)
1.6
Spectral class
M1V (red)
Pri motion ra
+019
Sec motion ra
+017
Pri motion dec
-201
Sec motion dec
-200
Notes
V (Proper motion indicates physical)
rPM=0.011 (< 0.3, Physical double)
This double is physical.
 
 
17397+2746 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17397+2746 LDS 999 AB 1936 2016 5 21 56.4 11.12 12.72 1.60 <===
Show 17397+2746 JOD 12 BC 2008 2008 1 318 0.3 14.90 16.10 1.20
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
21
Precise sep
56.439
Cdsa2 id
LDS 999 AB
Constellation
Hercules
HIP
86423
Tycho2
2084-00930-1
GL
NN 4018A
Ra deg
17.658527777777778
De deg
27.762722222222223
Distance
24.97
Distance ly
81.45
last precise pa
21
last precise sep
56.439
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17397+2746 LDS 999 AB 2002 4 21 56.4 11.12 12.72 M1V V 173930.70+274545.8
17397+2746 LDS 999 AB 2016 5 21 56.4 11.12 12.72 M1V V 173930.70+274545.8

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