01244+3653 HDS 181

Coord 2000	01244+3653		Discov num	HDS 181		Comp			Coord arcsec 2000	01 24 23.59 +36 53 00.7
Date first	1991		Date last	2010		Obs	5
Pa first	337		Pa last	349		P.A. Now (θ)	349°
Sep first	0.3		Sep last	0.3		Sep. Now (ρ)	0.3"
Mag pri	7.44		Mag sec	9.61		delta mag (ΔM)	2.17		Spectral class	B9 (blue-white)
Pri motion ra	+016		Sec motion ra
Pri motion dec	-018		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		54665	01244+3653	YSC 173	Aa,Ab	2010	2010	2	111	0.0	7.70	9.10	1.40
Show		54665	01244+3653	HDS 181		1991	2010	5	349	0.3	7.44	9.61	2.17		<===

Triple system
1 visible stars in this system

Precise pa	348.7		Precise sep	0.304		Constellation	Andromeda		SAO	54665
HIP	6568		Tycho2	2304-01141-1		Gaia DR2	7049145472		HD	8452
BD	BD+36 241		Distance	143.88		Distance ly	469.34

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01244+3653	HDS 181		1999	2	343	0.3	7.44	9.61	B9		012423.59+365300.7
01244+3653	HDS 181		2009	3	348	0.3	7.44	9.61	B9	D	012423.59+365300.7
01244+3653	HDS 181		2010	5	349	0.3	7.44	9.61	B9		012423.59+365300.7

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