20051+3021 ES  497

Coord 2000	20051+3021		Discov num	ES  497		Comp			Coord arcsec 2000	20 05 08.07 +30 21 17.2
Date first	1900		Date last	2015		Obs	9
Pa first	194		Pa last	195		P.A. Now (θ)	195°
Sep first	4.7		Sep last	5.6		Sep. Now (ρ)	5.6"
Mag pri	10.15		Mag sec	11.80		delta mag (ΔM)	1.65		Spectral class	F5 (yellow-white)
Pri motion ra	-001		Sec motion ra	-004
Pri motion dec	-004		Sec motion dec	-013
Notes	N (See Notes)

rPM=0.697 Nature of this double is uncertain.

Precise pa	194.7		Precise sep	5.565		Constellation	Cygnus		Tycho2	2670-01751-1
Gaia DR2	70664012288		HD	333373

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20051+3021	ES 497		1998	4	194	4.9	10.15	11.80	F5	D	200508.07+302117.2
20051+3021	ES 497		2002	5	196	5.5	10.15	11.80	F5	D	200508.07+302117.2
20051+3021	ES 497		2015	6	195	5.6	10.15	11.80	F5	N	200508.07+302117.2

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