20281+3353 COU1956

Coord 2000	20281+3353		Discov num	COU1956		Comp			Coord arcsec 2000	20 28 03.89 +33 53 16.6
Date first	1980		Date last	2008		Obs	11
Pa first	237		Pa last	239		P.A. Now (θ)	239°
Sep first	0.3		Sep last	0.4		Sep. Now (ρ)	0.4"
Mag pri	7.10		Mag sec	9.49		delta mag (ΔM)	2.39		Spectral class	B9 (blue-white)
Pri motion ra	+002		Sec motion ra	+002
Pri motion dec	-001		Sec motion dec	-001
Notes

Nature of this double is uncertain.

Precise pa	239.1		Precise sep	0.402		Constellation	Cygnus		SAO	70063
HIP	100949		Tycho2	2693-00747-1		Gaia DR2	45549985280		HD	195102
BD	BD+33 3914		Distance	469.48		Distance ly	1531.44

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20281+3353	COU1956		1995	10	237	0.4	7.10	9.49	B9	D	202803.89+335316.6
20281+3353	COU1956		2008	11	239	0.4	7.10	9.49	B9	D	202803.89+335316.6

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