00288+5756 OSO   5AC

Coord 2000	00288+5756		Discov num	OSO   5		Comp	AC		Coord arcsec 2000	00 28 47.69 +57 56 02.2
Date first	1994		Date last	2015		Obs	4
Pa first	279		Pa last	273		P.A. Now (θ)	273°
Sep first	18.4		Sep last	24.6		Sep. Now (ρ)	24.6"
Mag pri	14.28		Mag sec	15.39		delta mag (ΔM)	1.11		Spectral class
Pri motion ra	+298		Sec motion ra	-047
Pri motion dec	+055		Sec motion dec	+084
Notes	N (See Notes)

rPM=1.143 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			00 28 48 +57 56 02	OSO 5 AB	2015	3	32	5.6	14.28	20.00	5.72
Show			00 28 48 +57 56 02	OSO 5 AC	2015	4	273	24.6	14.28	15.39	1.11		<===
Show			00 28 48 +57 56 02	OSO 5 AD	2015	3	266	30.8	14.28	18.70	4.42
Show			00 28 48 +57 56 02	OSO 5 AE	2015	3	257	30.9	14.28	17.80	3.52

Quintuple system
5 visible stars in this system

Precise pa

273.4

Precise sep

24.58

Constellation

Cassiopeia

Gaia DR2

427914948988516864

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00288+5756	OSO 5	AC	1998	2	277	19.7	14.46	15.20		N D	002847.67+575602.1
00288+5756	OSO 5	AC	2003	3	276	21.1	14.28	15.39		N D	002847.69+575602.2
00288+5756	OSO 5	AC	2015	4	273	24.6	14.28	15.39		N	002847.69+575602.2

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