20256+4155 ARG  92

Coord 2000	20256+4155		Discov num	ARG  92		Comp			Coord arcsec 2000	20 25 36.16 +41 54 35.9
Date first	1892		Date last	2018		Obs	16
Pa first	312		Pa last	309		P.A. Now (θ)	309°
Sep first	41.0		Sep last	41.7		Sep. Now (ρ)	41.7"
Mag pri	9.71		Mag sec	10.52		delta mag (ΔM)	0.81		Spectral class	A5 (white)
Pri motion ra	+016		Sec motion ra	+002
Pri motion dec	+013		Sec motion dec	+005
Notes

rPM=0.782 Nature of this double is uncertain.

Precise pa	308.6		Precise sep	41.728		Constellation	Cygnus		SAO	49604
Tycho2	3160-01538-1		Gaia DR2	02886612736

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20256+4155	ARG 92		2005	8	310	41.5	9.71	10.52	A5	D	202536.16+415435.9
20256+4155	ARG 92		2010	10	309	41.6	9.71	10.52	A5		202536.16+415435.9
20256+4155	ARG 92		2015	11	309	41.6	9.71	10.52	A5		202536.16+415435.9
20256+4155	ARG 92		2018	12	309	41.7	9.71	10.52	A5		202536.16+415435.9

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