00393+4050 ES 1604AB

Coord 2000	00393+4050		Discov num	ES 1604		Comp	AB		Coord arcsec 2000	00 39 24.78 +40 50 27.5
Date first	1917		Date last	2002		Obs	2
Pa first	158		Pa last	169		P.A. Now (θ)	169°
Sep first	2.6		Sep last	2.5		Sep. Now (ρ)	2.5"
Mag pri	11.32		Mag sec	14.80		delta mag (ΔM)	3.48		Spectral class
Pri motion ra	-012		Sec motion ra
Pri motion dec	-010		Sec motion dec
Notes

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			00 39 25 +40 50 28	ES 1604 AB	2002	2	169	2.5	11.32	14.80	3.48		<===
Show			00 39 25 +40 50 28	GII 109 Ba,Bb	2015	1	12	0.3	15.50	15.60	0.10

Triple system
2 visible stars in this system

Precise pa	168.8		Precise sep	2.48		Constellation	Hydra		Tycho2	2788-00930-1
Gaia DR2	381150142472589312

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00393+4050	ES 1604	AB	2000	2	169	2.5	11.32	14.80			003924.78+405027.5
00393+4050	ES 1604	AB	2002	2	169	2.5	11.32	14.80			003924.78+405027.5

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