00491+5749 STF  60AC

Coord 2000	00491+5749		Discov num	STF  60		Comp	AC		Coord arcsec 2000	00 49 06.29 +57 48 54.7
Date first	1912		Date last	2000		Obs	4
Pa first	234		Pa last	260		P.A. Now (θ)	260°
Sep first	154.5		Sep last	225.0		Sep. Now (ρ)	225"
Mag pri	3.52		Mag sec	11.40		delta mag (ΔM)	7.88		Spectral class	G0V (yellow)
Pri motion ra	+114		Sec motion ra
Pri motion dec	-057		Sec motion dec
Notes	N U P (See Notes, Proper motion indicates non-physical, 100-year proper motion)

This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Achird	21732	00491+5749	STF 60	AB	1779	2016	1076	326	13.4	3.52	7.36	3.84	Y
Show		21732	00491+5749	STF 60	AC	1912	2000	4	260	225.0	3.52	11.40	7.88		<===
Show		21732	00491+5749	STF 60	AD	1912	2011	7	354	189.4	3.52	12.80	9.28
Show		21732	00491+5749	STF 60	AE	1856	2015	24	126	75.6	3.52	10.15	6.63
Show		21732	00491+5749	STF 60	AF	1913	2000	3	276	378.3	3.52	11.53	8.01
Show		21732	00491+5749	STF 60	AG	1852	2012	18	258	426.0	3.52	9.53	6.01
Show		21732	00491+5749	STF 60	AH	1991	2000	3	355	694.7	3.52	8.41	4.89
Show		21732	00491+5749	SMR 2	AI	2000	2012	7	73	90.3	3.52	11.60	8.08
Show		21732	00491+5749	SMR 2	AJ	2000	2012	5	262	237.1	3.52	12.30	8.78
Show		21732	00491+5749	STF 60	BC	1912	2000	4	257	218.7	7.36	11.40	4.04
Show		21732	00491+5749	STF 60	BD	2000	2000	1	1	172.2	7.36	12.80	5.44
Show		21732	00491+5749	STF 60	BE	1913	2000	3	125	106.1	7.36	10.15	2.79
Show		21732	00491+5749	STF 60	BF	1991	2000	2	275	369.1	7.36	11.53	4.17
Show		21732	00491+5749	STF 60	BG	1991	2000	2	254	404.0	7.36	9.53	2.17
Show		21732	00491+5749	STF 60	BH	1928	2000	4	355	684.7	7.36	8.41	1.05
Show			00491+5749	STF 60	FG	1911	2003	6	188	142.4	11.53	9.53	2.00

Decuple system
10 visible stars in this system

Constellation	Cassiopeia		SAO	21732		HIP	3821		HD	4614
HR	219		GC	962		GL	Gl 34A		BD	BD+57 150
Bayer	Eta Cassiopeiae		Bayer name	Eta Cas		Flamsteed	24 Cassiopeiae		Flamsteed name	24 Cas
Distance	5.95		Distance ly	19.41		last precise pa	259.5		last precise sep	225.03

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00491+5749	STF 60	AC	2000	5	257	218.7	3.52	11.40		N DP	004905.10+574859.6
00491+5749	STF 60	AC	2011	5	262	237.6	3.52	11.40		NUDP	004905.10+574859.6

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