18299-0149 HLA 18 AB

Coord 2000	18299-0149		Discov num	HLA  18		Comp	AB		Coord arcsec 2000	18 29 52.41 -01 49 05.2
Date first	2015		Date last	2017		Obs	2
Pa first	160		Pa last	164.2		P.A. Now (θ)	164.2°
Sep first	4.0		Sep last	3.65		Sep. Now (ρ)	3.65"
Mag pri	5.50		Mag sec	12.70		delta mag (ΔM)	7.2		Spectral class	K4V (yellow-orange)
Pri motion ra	+172		Sec motion ra
Pri motion dec	-193		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			18 29 52 -01 49 05	HLA 18 AB	2017	2	164	3.7	5.50	12.70	7.20		<===
Show		142350	18 29 52 -01 49 05	HLA 18 AC	2015	1	147	4.0	5.50

Triple system
3 estimated visually detectable stars in this system

Constellation

Serpens