00453+5513 BU  492AB

Coord 2000	00453+5513		Discov num	BU  492		Comp	AB		Coord arcsec 2000	00 45 17.20 +55 13 17.1
Date first	1878		Date last	2001		Obs	11
Pa first	153		Pa last	167		P.A. Now (θ)	167°
Sep first	1.9		Sep last	1.6		Sep. Now (ρ)	1.6"
Mag pri	5.42		Mag sec	11.50		delta mag (ΔM)	6.08		Spectral class	A2Vs (white)
Pri motion ra	-036		Sec motion ra
Pri motion dec	-005		Sec motion dec
Notes

Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		21677	00453+5513	BU 492	AB	1878	2001	11	167	1.6	5.42	11.50	6.08		<===
Show		21677	00453+5513	BU 492	AC	1909	2015	7	26	88.6	5.42	11.34	5.92
Show		21677	00453+5513	FYM 184	CD	2000	2015	7	91	23.2	11.30	14.00	2.70
Show		21677	00453+5513	FYM 184	DE	2000	2015	7	129	13.7	14.00	15.30	1.30

Quintuple system
5 visible stars in this system

Precise pa	167.2		Precise sep	1.63		Constellation	Cassiopeia		SAO	21677
HIP	3544		Tycho2	3659-02174-1		Gaia DR2	9011230720		HD	4222
HR	196		BD	BD+54 143		Distance	98.81		Distance ly	322.32

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00453+5513	BU 492	AB	1964	10	163	2.0	5.42	11.50	A2Vs		004517.20+551317.1
00453+5513	BU 492	AB	2001	11	167	1.6	5.42	11.50	A2Vs		004517.20+551317.1

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