18073-3517 BRT1756AB

18h 07m 15.99s -35 17' 05.7" P.A. 94 sep 7.1 mag 10.62,12.40 Sp B9

Coord 2000
18073-3517
Discov num
BRT1756
Comp
AB
Coord arcsec 2000
18 07 15.99 -35 17 05.7
Date first
1912
Date last
2015
Obs
9
Pa first
90
Pa last
94
P.A. Now (θ)
94°
Sep first
7.8
Sep last
7.1
Sep. Now (ρ)
7.1"
Mag pri
10.62
Mag sec
12.40
delta mag (ΔM)
1.78
Spectral class
B9 (blue-white)
Pri motion ra
+001
Sec motion ra
-004
Pri motion dec
+000
Sec motion dec
-007
Notes


rPM=1.067

This double is not physical.



18073-3517 SYSTEM COMPONENTS

Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18073-3517 BRT1756 AB 1912 2015 9 94 7.1 10.62 12.40 1.78 <===
Show 18073-3517 BRT1756 AC 1912 2015 7 162 9.1 10.62 13.40 2.78
Triple system
3 visible stars in this system



OTHER CATALOGS AND DESIGNATIONS

Precise pa
93.6
Precise sep
7.112
Constellation
Sagittarius
Tycho2
7399-00841-1
Gaia DR2
75251290112
HD
321287




WDS HISTORIC DATA

coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18073-3517 BRT1756 AB 1998 2 93 7.1 10.62 12.40 B9 D 180715.99-351705.7
18073-3517 BRT1756 AB 1999 3 94 7.1 10.62 12.40 B9 D 180715.99-351705.7
18073-3517 BRT1756 AB 2014 6 96 6.3 10.62 12.40 B9 180715.99-351705.7
18073-3517 BRT1756 AB 2015 9 94 7.1 10.62 12.40 B9 180715.99-351705.7

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