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Doubles in session

Current system

03449+2407
OCC 424 Aa,Ac

Selections

Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

03449+2407 OCC 424 Aa,Ac

03^h 44^m 52.52^s +24° 06' 48.4" P.A. -1.00 sep 0.2 mag 3.90,7.50 Sp B6III dist. 124.07 pc (404.72 l.y.)

Coord 2000	03449+2407		Discov num	OCC 424		Comp	Aa,Ac		Coord arcsec 2000	03 44 52.52 +24 06 48.4
Date first	1988		Date last	1988		Obs	0
Pa first	-1		Pa last	-1		P.A. Now (θ)	-1
Sep first	0.2		Sep last	0.196		Sep. Now (ρ)	0.196"
Mag pri	3.90		Mag sec	7.50		delta mag (ΔM)	3.6		Spectral class	B6III (blue-white)
Pri motion ra	+020		Sec motion ra
Pri motion dec	-046		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

03449+2407 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		76131	03 44 53 +24 06 48	OCC 424 Aa,Ab	1987	0	-1	1.5	3.90	7.00	3.10
Show		76131	03 44 53 +24 06 48	OCC 424 Aa,Ac	1988	0	-1	0.2	3.90	7.50	3.60		<===
Show		76131	03 44 53 +24 06 48	HL 7 AB	2011	5	144	99.1	3.71	13.00	9.29
Show		76131	03 44 53 +24 06 48	HL 7 AC	2011	5	121	142.9	3.67	13.75	10.08
Show		76131	03 44 53 +24 06 48	HL 7 AD	2011	5	193	216.2	3.71	11.00	7.29
Show	Electra	76131	03 44 53 +24 06 48	HL 7 AE	2011	5	346	186.8	3.67	11.47	7.80

Septuple system
5 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Taurus		SAO	76131		HIP	17499		Tycho2	1799-01441-1
Gaia DR2	65271996684277504		HD	23302		HR	1142		GC	4477
BD	BD+23 507		Flamsteed	17 Tauri		Flamsteed name	17 Tau		FK5	136
Distance	124.07		Distance ly	404.72