17378+2257 AG  210AB

 
 
17h 37m 48.70s +22 57' 20.1" P.A. 189 sep 4.2 mag 10.07,10.33 Sp M0.5+M1.5 dist. 22.16 pc (72.29 l.y.)
 
 
Coord 2000
17378+2257
Discov num
AG  210
Comp
AB
Coord arcsec 2000
17 37 48.70 +22 57 20.1
Date first
1894
Date last
2016
Obs
59
Pa first
173
Pa last
189
P.A. Now (θ)
189°
Sep first
3.7
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
10.07
Mag sec
10.33
delta mag (ΔM)
0.26
Spectral class
M0.5+M1.5 (red/red)
Pri motion ra
-153
Sec motion ra
-163
Pri motion dec
-143
Sec motion dec
-139
Notes
V (Proper motion indicates physical)
rPM=0.05 (< 0.3, Physical double)
This double is physical.
 
 
17378+2257 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17378+2257 AG 210 AB 1894 2016 59 189 4.2 10.07 10.33 0.26 <===
Show 17378+2257 FYM 246 AC 1997 2015 5 337 11.9 10.07 14.10 4.03
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
189.2
Precise sep
4.175
Constellation
Hercules
HIP
86282
Tycho2
2076-01246-1
GL
Gl 686.1A
BD
BD+23 3151
Distance
22.16
Distance ly
72.29
last precise pa
189.2
last precise sep
4.175
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17378+2257 AG 210 AB 2015 54 189 4.3 10.07 10.33 M0.5+M1.5 V 173748.70+225720.1
17378+2257 AG 210 AB 2016 59 189 4.2 10.07 10.33 M0.5+M1.5 V 173748.70+225720.1

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