19457+4230 ES 1563

Coord 2000	19457+4230		Discov num	ES 1563		Comp			Coord arcsec 2000	19 45 41.30 +42 29 34.3
Date first	1892		Date last	2015		Obs	11
Pa first	207		Pa last	210		P.A. Now (θ)	210°
Sep first	9.3		Sep last	6.2		Sep. Now (ρ)	6.2"
Mag pri	10.20		Mag sec	11.80		delta mag (ΔM)	1.6		Spectral class	A5 (white)
Pri motion ra	+005		Sec motion ra	+010
Pri motion dec	+000		Sec motion dec	+017
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.898 This double is not physical.

Precise pa	209.7		Precise sep	6.18		Constellation	Cygnus		SAO	48801
Tycho2	3144-01422-1		Gaia DR2	82881876864

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19457+4230	ES 1563		1998	3	210	6.7	10.20	11.80	A5	D	194541.30+422934.3
19457+4230	ES 1563		2003	5	210	6.6	10.20	11.80	A5	N D	194541.30+422934.3
19457+4230	ES 1563		2010	6	208	5.5	10.20	11.80	A5	N	194541.30+422934.3
19457+4230	ES 1563		2015	7	210	6.3	10.20	11.80	A5	N	194541.30+422934.3

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