17518+3756 ES 2568

 
 
17h 50m 45.46s +37 49' 00.5" P.A. 39 sep 11.7 mag 15.11,15.17
 
 
Coord 2000
17518+3756
Discov num
ES 2568
Comp
Coord arcsec 2000
17 50 45.46 +37 49 00.5
Date first
1932
Date last
2010
Obs
4
Pa first
37
Pa last
39
P.A. Now (θ)
39°
Sep first
9.3
Sep last
11.7
Sep. Now (ρ)
11.7"
Mag pri
15.11
Mag sec
15.17
delta mag (ΔM)
0.06
Spectral class
Pri motion ra
-015
Sec motion ra
+091
Pri motion dec
-026
Sec motion dec
+090
Notes
rPM=1.228
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
38.5
Precise sep
11.7
Constellation
Hercules
Tycho2
3089-02065-1
last precise pa
38.5
last precise sep
11.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17518+3756 ES 2568 1998 2 59 11.0 15.11 15.17 DI 175140.17+375627.2
17518+3756 ES 2568 2000 2 38 11.4 15.11 15.17 D 175045.46+374900.5
17518+3756 ES 2568 2002 4 38 11.5 15.11 15.17 D 175045.46+374900.5
17518+3756 ES 2568 2010 4 39 11.4 15.11 15.17 175045.46+374900.5

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