17383+4500 ES 1257AB

 
 
17h 38m 13.95s +45 00' 23.3" P.A. 297 sep 2.8 mag 10.45,10.90
 
 
Coord 2000
17383+4500
Discov num
ES 1257
Comp
AB
Coord arcsec 2000
17 38 13.95 +45 00 23.3
Date first
1893
Date last
2017
Obs
16
Pa first
298
Pa last
297
P.A. Now (θ)
297°
Sep first
2.6
Sep last
2.8
Sep. Now (ρ)
2.8"
Mag pri
10.45
Mag sec
10.90
delta mag (ΔM)
0.45
Spectral class
Pri motion ra
+057
Sec motion ra
-004
Pri motion dec
+003
Sec motion dec
+030
Notes
N (See Notes)
rPM=1.169
This double is not physical.
 
 
17383+4500 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17383+4500 ES 1257 AB 1893 2017 16 297 2.8 10.45 10.90 0.45 <===
Show 17383+4500 ES 1257 AC 1893 2017 13 124 52.4 10.45 10.53 0.08
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
297.4
Precise sep
2.79
Cdsa2 id
ES 1257 AB
Constellation
Hercules
Tycho2
3510-00175-1
Ra deg
17.637208333333334
De deg
45.00647222222222
last precise pa
297.4
last precise sep
2.79
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17383+4500 ES 1257 AB 2000 14 296 2.8 10.20 10.60 173813.95+450023.3
17383+4500 ES 1257 AB 2003 15 296 2.7 10.45 10.90 N 173813.95+450023.3
17383+4500 ES 1257 AB 2017 16 297 2.8 10.45 10.90 N 173813.95+450023.3

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