18515+1019 HJ  870AC

 
 
18h 51m 35.95s +10 19' 14.0" P.A. 248 sep 65.8 mag 9.75,9.21 Sp A0+A0
 
 
Coord 2000
18515+1019
Discov num
HJ  870
Comp
AC
Coord arcsec 2000
18 51 35.95 +10 19 14.0
Date first
1909
Date last
2015
Obs
11
Pa first
249
Pa last
248
P.A. Now (θ)
248°
Sep first
65.7
Sep last
65.8
Sep. Now (ρ)
65.8"
Mag pri
9.75
Mag sec
9.21
delta mag (ΔM)
0.54
Spectral class
A0+A0 (white/white)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
+000
Sec motion dec
-004
Notes
rPM=0.8
Nature of this double is uncertain.
 
 
18515+1019 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18515+1019 HJ 870 AB 1827 2015 13 219 11.6 9.75 12.00 2.25
Show 18515+1019 HJ 870 AC 1909 2015 11 248 65.8 9.75 9.21 0.54 <===
Show 18515+1019 BU 1464 CD 1879 2015 17 23 22.0 9.21 9.68 0.47
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
248.3
Precise sep
65.8
Constellation
Aquila
Tycho2
1030-00908-1
HD
174734
last precise pa
248.3
last precise sep
65.8
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18515+1019 HJ 870 AC 2004 9 249 66.2 9.75 9.21 D 185135.95+101914.0
18515+1019 HJ 870 AC 2015 11 248 65.8 9.75 9.21 A0+A0 185135.95+101914.0

If you need more information about this double, apply for a data request form to the WDS.