03556+5238 CIA 38 Aa,Ab

Coord 2000	03556+5238		Discov num	CIA  38		Comp	Aa,Ab		Coord arcsec 2000	03 55 38.42 +52 38 28.8
Date first	2018		Date last	2018		Obs	1
Pa first	146		Pa last	146.1		P.A. Now (θ)	146.1°
Sep first	0.0		Sep last	0.01		Sep. Now (ρ)	0.01"
Mag pri	6.10		Mag sec	7.50		delta mag (ΔM)	1.4		Spectral class	O9IV-V (blue)
Pri motion ra	+000		Sec motion ra
Pri motion dec	-002		Sec motion dec
Notes	K (K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		24300	03 55 38 +52 38 29	CIA 38 Aa,Ab	2018	1	146	0.0	6.10	7.50	1.40		<===
Show	HD 24431	24300	03 55 38 +52 38 29	HDS 494 AB	2013	10	176	0.7	6.91	9.82	2.91

Triple system
2 estimated visually detectable stars in this system

Constellation	Perseus		SAO	24300		HIP	18370		Tycho2	3717-00049-1
HD	24431		BD	BD+52 726		Distance	442.48		Distance ly	1443.37