20045-2342 BWL  54AB

 
 
20H 04M 30.78S -23 42' 01.9" P.A. 261 SEP 2.3 MAG 7.70,17.70 SP M4.5
 
 
Coord 2000
20045-2342
Discov num
BWL  54
Comp
AB
Coord arcsec 2000
20 04 30.78 -23 42 01.9
Date first
2011
Date last
2012
Obs
2
Pa first
252
Pa last
261
P.A. Now (θ)
261°
Sep first
2.3
Sep last
2.3
Sep. Now (ρ)
2.3"
Mag pri
7.70
Mag sec
17.70
delta mag (ΔM)
10
Spectral class
M4.5 (red)
Pri motion ra
+123
Sec motion ra
Pri motion dec
-339
Sec motion dec
Notes
U K (Proper motion indicates non-physical, K-band or other infrared magnitudes)
This double is not physical.
 
 
20045-2342 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20045-2342 BWL 54 AB 2011 2012 2 261 2.3 7.70 17.70 10.00 <===
Show 20045-2342 BWL 54 AC 2011 2012 2 0 6.4 7.70 18.10 10.40
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
last precise pa
260.7
last precise sep
2.34