04504+0934 SKF1831A,BC

Coord 2000	04504+0934		Discov num	SKF1831		Comp	A,BC		Coord arcsec 2000	04 50 23.36 +09 33 17.6
Date first	1910		Date last	2015		Obs	11
Pa first	320		Pa last	320		P.A. Now (θ)	320°
Sep first	53.3		Sep last	53.3		Sep. Now (ρ)	53.3"
Mag pri	9.20		Mag sec	9.72		delta mag (ΔM)	0.52		Spectral class	A0+A2 (white/white)
Pri motion ra	+003		Sec motion ra	+004
Pri motion dec	-003		Sec motion dec	-002
Notes

rPM=0.316 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			04 50 23 +09 33 18	SKF 1831 A,BC	2015	11	320	53.3	9.20	9.72	0.52		<===
Show			04 50 21 +09 33 58	A 2039 BC	2015	6	298	0.1	10.40	10.40	0.00

Triple system
4 visible stars in this system

Precise pa	320.1		Precise sep	53.349		Constellation	Orion		Tycho2	0687-00859-1
Gaia DR2	3292889548251368320		HD	30713

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
04504+0934	SKF1831	A,BC	2015	8	320	53.3	9.20	9.72	A0+A2		045023.36+093317.6

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