20049+5855 ES 1799BC

Coord 2000	20049+5855		Discov num	ES 1799		Comp	BC		Coord arcsec 2000	20 04 47.92 +58 55 19.4
Date first	1919		Date last	2016		Obs	3
Pa first	154		Pa last	151		P.A. Now (θ)	151°
Sep first	2.1		Sep last	2.3		Sep. Now (ρ)	2.3"
Mag pri	13.00		Mag sec	13.20		delta mag (ΔM)	0.2		Spectral class
Pri motion ra	-002		Sec motion ra
Pri motion dec	-003		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			20 04 51 +58 55 17	ES 1799 AB	2015	4	273	22.3	10.36	12.01	1.65
Show			20 04 48 +58 55 19	ES 1799 BC	2016	3	151	2.3	13.00	13.20	0.20		<===

Triple system
3 visible stars in this system

Precise pa	150.7		Precise sep	2.293		Constellation	Cygnus		Tycho2	3948-01939-1
Gaia DR2	2236377135881156608

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20049+5855	ES 1799	BC	1919	1	154	2.1	12.80	13.00			200447.92+585519.4
20049+5855	ES 1799	BC	2015	2	151	2.3	13.00	13.20			200447.92+585519.4

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