20179+4319 ES 1440

Coord 2000	20179+4319		Discov num	ES 1440		Comp			Coord arcsec 2000	20 17 54.49 +43 18 48.9
Date first	1915		Date last	2015		Obs	4
Pa first	260		Pa last	256		P.A. Now (θ)	256°
Sep first	2.6		Sep last	2.6		Sep. Now (ρ)	2.6"
Mag pri	10.40		Mag sec	11.40		delta mag (ΔM)	1		Spectral class
Pri motion ra	+018		Sec motion ra
Pri motion dec	-002		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	256.1		Precise sep	2.578		Constellation	Cygnus		Tycho2	3163-00100-1
Gaia DR2	86806915840

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20179+4319	ES 1440		1936	2	254	2.5	10.40	11.40			201754.49+431848.9
20179+4319	ES 1440		2011	3	258	2.7	10.40	11.40			201754.49+431848.9
20179+4319	ES 1440		2015	4	256	2.6	10.40	11.40			201754.49+431848.9

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