00339+5816 ES 1770AB

Coord 2000	00339+5816		Discov num	ES 1770		Comp	AB		Coord arcsec 2000	00 33 55.39 +58 16 01.7
Date first	1910		Date last	2015		Obs	9
Pa first	325		Pa last	340		P.A. Now (θ)	340°
Sep first	2.6		Sep last	3.1		Sep. Now (ρ)	3.1"
Mag pri	11.08		Mag sec	11.48		delta mag (ΔM)	0.4		Spectral class
Pri motion ra	+018		Sec motion ra	+003
Pri motion dec	-033		Sec motion dec	-006
Notes

rPM=0.822 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		21519	00339+5816	ES 1770	AB	1910	2015	9	340	3.1	11.08	11.48	0.40		<===
Show		21519	00339+5816	ES 1770	AC	1911	2015	8	125	12.6	11.08	13.50	2.42

Triple system
3 visible stars in this system

Precise pa	340		Precise sep	3.063		Constellation	Cassiopeia		SAO	21519
Tycho2	3666-01568-1		Gaia DR2	424982379679421952

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00339+5816	ES 1770	AB	2000	6	339	2.9	11.08	11.48			003355.39+581601.7
00339+5816	ES 1770	AB	2003	7	340	3.1	11.08	11.48			003355.39+581601.7
00339+5816	ES 1770	AB	2014	8	341	3.0	11.08	11.48			003355.39+581601.7
00339+5816	ES 1770	AB	2015	9	340	3.1	11.08	11.48			003355.39+581601.7

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