20139+3545 COU2215

Coord 2000	20139+3545		Discov num	COU2215		Comp			Coord arcsec 2000	20 13 54.80 +35 45 01.5
Date first	1984		Date last	2011		Obs	3
Pa first	78		Pa last	73		P.A. Now (θ)	73°
Sep first	0.5		Sep last	0.7		Sep. Now (ρ)	0.7"
Mag pri	9.86		Mag sec	10.38		delta mag (ΔM)	0.52		Spectral class	F8 (yellow-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	73.1		Precise sep	0.66		Constellation	Cygnus		Tycho2	2683-03919-1
Gaia DR2	25974734464		HD	228439

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20139+3545	COU2215		1991	2	72	0.5	9.86	10.38	F8		201354.80+354501.5
20139+3545	COU2215		2011	3	73	0.7	9.86	10.38	F8		201354.80+354501.5

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