00214+2744 COU 347Aa,Ab

Coord 2000	00214+2744		Discov num	COU 347		Comp	Aa,Ab		Coord arcsec 2000	00 21 21.37 +27 44 01.0
Date first	1969		Date last	2018		Obs	12
Pa first	60		Pa last	48		P.A. Now (θ)	48°
Sep first	0.4		Sep last	0.4		Sep. Now (ρ)	0.4"
Mag pri	8.72		Mag sec	10.22		delta mag (ΔM)	1.5		Spectral class	F8 (yellow-white)
Pri motion ra	+019		Sec motion ra
Pri motion dec	-014		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		73916	00 21 21 +27 44 01	COU 347 Aa,Ab	2018	12	48	0.4	8.72	10.22	1.50		<===
Show		73916	00 21 21 +27 44 01	CHE 10 AB	2015	10	92	10.1	8.44	13.00	4.56

Triple system
2 visible stars in this system

Precise pa	47.7		Precise sep	0.44		Constellation	Andromeda		SAO	73916
HIP	1699		Tycho2	1736-00396-1		Gaia DR2	2857043860554165248		HD	1688
BD	BD+26 39		Distance	523.56		Distance ly	1707.85

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00214+2744	COU 347	Aa,Ab	1995	9	55	0.4	8.72	10.22	F8	D	002121.37+274401.1
00214+2744	COU 347	Aa,Ab	2007	10	52	0.5	8.72	10.22	F8	D	002121.37+274401.1
00214+2744	COU 347	Aa,Ab	2011	11	51	0.4	8.72	10.22	F8	N	002121.37+274401.0

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