17387+1834 BUP 177BC

 
 
17h 38m 22.78s +18 33' 22.4" P.A. 270 sep 104.8 mag 11.35,9.79
 
 
Coord 2000
17387+1834
Discov num
BUP 177
Comp
BC
Coord arcsec 2000
17 38 22.78 +18 33 22.4
Date first
1895
Date last
2015
Obs
7
Pa first
286
Pa last
270
P.A. Now (θ)
270°
Sep first
84.4
Sep last
104.8
Sep. Now (ρ)
104.8"
Mag pri
11.35
Mag sec
9.79
delta mag (ΔM)
1.56
Spectral class
Pri motion ra
+010
Sec motion ra
-189
Pri motion dec
-024
Sec motion dec
-205
Notes
N (See Notes)
rPM=0.965
This double is not physical.
 
 
17387+1834 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17387+1834 BUP 177 AB 1895 2015 10 266 272.2 9.64 11.35 1.71
Show 17387+1834 BUP 177 AC 1875 2005 13 269 374.3 9.64 9.79 0.15
Show 17387+1834 BUP 177 BC 1895 2015 7 270 104.8 11.35 9.79 1.56 <===
Show 17387+1834 OSO 82 CD 1994 1994 2 202 9.9 9.77 18.05 8.28
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
270.1
Precise sep
104.849
Constellation
Hercules
SAO
102986
Tycho2
1555-00119-1
Gaia DR2
00292096640
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17387+1834 BUP 177 BC 1999 5 272 101.9 11.35 9.79 D 173822.78+183322.4
17387+1834 BUP 177 BC 2001 6 272 102.3 11.35 9.79 N D 173822.78+183322.4
17387+1834 BUP 177 BC 2015 7 270 104.8 11.35 9.79 N 173822.78+183322.4

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