00066+2901 STT 549AB (V439 And)

Coord 2000	00066+2901		Discov num	STT 549		Comp	AB		Coord arcsec 2000	00 06 36.78 +29 01 17.4
Date first	1853		Date last	2019		Obs	22
Pa first	244		Pa last	260		P.A. Now (θ)	260°
Sep first	143.1		Sep last	193.6		Sep. Now (ρ)	193.6"
Mag pri	6.15		Mag sec	10.34		delta mag (ΔM)	4.19		Spectral class	K0V (yellow-orange)
Pri motion ra	+381		Sec motion ra	+007
Pri motion dec	-179		Sec motion dec	-010
Notes	N L U (See Notes, Linear solution, Proper motion indicates non-physical)

rPM=0.975 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	V439 And	73743	00 06 37 +29 01 17	STT 549 AB	2019	22	260	193.6	6.15	10.34	4.19		<===
Show		73743	00 06 37 +29 01 17	ENG 1 A,CD	2019	15	200	139.7	6.14	10.70	4.56
Show		73743	00 06 37 +29 01 17	LAF 21 AE	2005	1	83	10.2	4.60	17.20	12.60
Show		73743	00 06 33 +28 59 02	BU 1338 CD	2019	15	211	3.3	11.40	11.50	0.10

Quintuple system
6 visible stars in this system

Precise pa	260		Precise sep	193.6		Var name	V439 And		Constellation	Hydra
SAO	73743		HIP	544		Tycho2	1735-00927-1		HD	166
HR	8		GL	Gl 5		BD	BD+28 4704		Distance	13.67
Distance ly	44.59

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00066+2901	STT 549	AB	2002	15	259	186.7	6.15	10.34	K0V	NLD	000636.53+290119.0
00066+2901	STT 549	AB	2011	16	259	187.6	6.15	10.34	K0V	NLD	000636.53+290119.0
00066+2901	STT 549	AB	2012	19	259	189.7	6.15	10.34	K0V	NLD	000636.53+290119.0
00066+2901	STT 549	AB	2013	20	260	192.9	6.15	10.34	K0V	NL U	000636.53+290119.0
00066+2901	STT 549	AB	2015	21	260	192.5	6.15	10.34	K0V	NL U	000636.78+290117.4
00066+2901	STT 549	AB	2019	22	260	193.6	6.15	10.34	K0V	NL U	000636.78+290117.4

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