16205-2131 LAF 133AC

Coord 2000	16205-2131		Discov num	LAF 133		Comp	AC		Coord arcsec 2000	16 20 28.13 -21 30 32.4
Date first	2008		Date last	2008		Obs	1
Pa first	222		Pa last	222		P.A. Now (θ)	222°
Sep first	4.4		Sep last	4.4		Sep. Now (ρ)	4.4"
Mag pri	7.50		Mag sec	17.22		delta mag (ΔM)	9.72		Spectral class	A7III/IV (white)
Pri motion ra	-010		Sec motion ra
Pri motion dec	-025		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 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		184326	16 20 28 -21 30 32	LAF 133 AB	2018	2	71	0.3	7.50	9.86	2.36
Show		184326	16 20 28 -21 30 32	LAF 133 AC	2008	1	222	4.4	7.50	17.22	9.72		<===
Show		184326	16 20 28 -21 30 32	LAF 133 AD	2015	2	38	10.7	7.50	17.19	9.69

Quadruple system
4 visible stars in this system

Precise pa	221.8		Precise sep	4.429		Constellation	Hydra		SAO	184326
HIP	80059		Tycho2	6214-00290-1		Gaia DR2	6244280229549582080		HD	147083
BD	BD-21 4338		Distance	105.49		Distance ly	344.11

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
16205-2131	LAF 133	AC	2008	1	222	4.4	7.50	17.22	A7III/IV	U K	162028.13-213032.4

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