18028+0137 BU  635AB

 
 
18H 02M 49.73S +01 36' 07.6" P.A. 302 SEP 69.1 MAG 8.63,9.93 SP A5
 
 
Coord 2000
18028+0137
Discov num
BU  635
Comp
AB
Coord arcsec 2000
18 02 49.73 +01 36 07.6
Date first
1877
Date last
2004
Obs
18
Pa first
303
Pa last
302
P.A. Now (θ)
302°
Sep first
68.0
Sep last
69.1
Sep. Now (ρ)
69.1"
Mag pri
8.63
Mag sec
9.93
delta mag (ΔM)
1.3
Spectral class
A5 (white)
Pri motion ra
+002
Sec motion ra
+002
Pri motion dec
-007
Sec motion dec
-005
Notes
N (See Notes)
rPM=0.275 (< 0.3, Physical double)
This double is physical.
 
 
18028+0137 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18028+0137 BU 635 AB 1877 2004 18 302 69.1 8.63 9.93 1.30 <===
Show 18028+0137 BU 635 BC 1878 2005 20 122 1.5 9.93 10.90 0.97
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
Tycho2
0430-02917-1
HD
164812
last precise pa
301.9
last precise sep
69.13