20045-2342 BWL 54 AC

Coord 2000	20045-2342		Discov num	BWL  54		Comp	AC		Coord arcsec 2000	20 04 30.78 -23 42 01.9
Date first	2011		Date last	2012		Obs	2
Pa first	1		Pa last	359.7		P.A. Now (θ)	359.7°
Sep first	6.1		Sep last	6.431		Sep. Now (ρ)	6.431"
Mag pri	7.70		Mag sec	18.10		delta mag (ΔM)	10.4		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)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 04 31 -23 42 02	BWL 54 AB	2012	2	261	2.3	7.70	17.70	10.00
Show			20 04 31 -23 42 02	BWL 54 AC	2012	2	0	6.4	7.70	18.10	10.40		<===

Triple system
3 estimated visually detectable stars in this system

Constellation

Sagittarius