19487+4242 ES 1564

Coord 2000	19487+4242		Discov num	ES 1564		Comp			Coord arcsec 2000	19 48 43.97 +42 42 05.3
Date first	1892		Date last	2010		Obs	8
Pa first	10		Pa last	357		P.A. Now (θ)	357°
Sep first	8.4		Sep last	7.6		Sep. Now (ρ)	7.6"
Mag pri	10.60		Mag sec	12.00		delta mag (ΔM)	1.4		Spectral class
Pri motion ra	+018		Sec motion ra	-001
Pri motion dec	-001		Sec motion dec	-005
Notes

rPM=1.077 This double is not physical.

Precise pa	356.6		Precise sep	7.55		Cdsa2 id	ES 1564		Constellation	Cygnus
Ra deg	19.81221388888889		De deg	42.70147222222222		last precise pa	356.6		last precise sep	7.55

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19487+4242	ES 1564		1998	5	179	7.4	10.60	12.00		D	194843.97+424205.3
19487+4242	ES 1564		2003	7	358	7.3	10.60	12.00			194843.97+424205.3
19487+4242	ES 1564		2010	8	357	7.6	10.60	12.00			194843.97+424205.3

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