20347+4957 ES 2696

Coord 2000	20347+4957		Discov num	ES 2696		Comp			Coord arcsec 2000	20 34 40.94 +49 57 11.3
Date first	1911		Date last	2015		Obs	11
Pa first	148		Pa last	147		P.A. Now (θ)	147°
Sep first	10.8		Sep last	12.2		Sep. Now (ρ)	12.2"
Mag pri	9.86		Mag sec	10.72		delta mag (ΔM)	0.86		Spectral class	B8 (blue-white)
Pri motion ra	-004		Sec motion ra	+004
Pri motion dec	-006		Sec motion dec	-016
Notes

rPM=0.776 Nature of this double is uncertain.

Precise pa	147		Precise sep	12.171		Constellation	Cygnus		SAO	49829
Tycho2	3581-02032-1		Gaia DR2	59133173632

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20347+4957	ES 2696		2003	4	148	12.1	9.80	10.40	B8	D	203440.94+495711.3
20347+4957	ES 2696		2010	6	147	11.8	9.86	10.72	B8		203440.94+495711.3
20347+4957	ES 2696		2015	7	147	12.2	9.86	10.72	B8		203440.94+495711.3

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