18245-2947 BIL   7Aa,Ab

 
 
18h 24m 29.77s -29 46' 49.3" sep 0.1 mag 5.60,12.10 Sp A7V
 
 
Coord 2000
18245-2947
Discov num
BIL   7
Comp
Aa,Ab
Coord arcsec 2000
18 24 29.77 -29 46 49.3
Date first
2013
Date last
2013
Obs
1
Pa first
0
Pa last
0
P.A. Now (θ)
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
5.60
Mag sec
12.10
delta mag (ΔM)
6.5
Spectral class
A7V (white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-040
Sec motion dec
Notes
N K (See Notes, K-band or other infrared magnitudes)
Nature of this double is uncertain.
 
 
18245-2947 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 186777 18245-2947 BIL 7 Aa,Ab 2013 2013 1 0 0.1 5.60 12.10 6.50 <===
Show 186777 18245-2947 B 2446 AB 1930 1999 3 224 9.3 8.19 14.10 5.91
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise sep
0.11
Constellation
Sagittarius
SAO
186777
Tycho2
6856-00876-1
HD
169142
last precise pa
0
last precise sep
0.11
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18245-2947 BIL 7 Aa,Ab 2013 1 0 0.1 5.60 12.10 A7V N K 182429.77-294649.3

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