20104+5839 FOX 249

Coord 2000	20104+5839		Discov num	FOX 249		Comp			Coord arcsec 2000	20 10 20.95 +58 38 37.7
Date first	1904		Date last	2018		Obs	14
Pa first	107		Pa last	106		P.A. Now (θ)	106°
Sep first	6.5		Sep last	6.5		Sep. Now (ρ)	6.5"
Mag pri	10.62		Mag sec	10.74		delta mag (ΔM)	0.12		Spectral class
Pri motion ra	+011		Sec motion ra	+014
Pri motion dec	+004		Sec motion dec	+003
Notes	V (Proper motion indicates physical)

Visually invisible, K-band or other infrared star rPM=0.221 (< 0.3, Physical double) This double is physical.

Precise pa	106.1		Precise sep	6.518		Constellation	Cygnus		Tycho2	3948-00196-1
Gaia DR2	27636498432

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20104+5839	FOX 249		1999	6	106	6.5	10.62	10.74		D	201020.95+583837.7
20104+5839	FOX 249		2009	7	105	6.4	10.62	10.74		D	201020.95+583837.7
20104+5839	FOX 249		2010	9	107	5.3	10.62	10.74			201020.95+583837.7
20104+5839	FOX 249		2015	10	106	6.5	10.62	10.74			201020.95+583837.7
20104+5839	FOX 249		2018	11	106	6.5	10.62	10.74			201020.95+583837.7

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