20290+3924 ALI1144

Coord 2000	20290+3924		Discov num	ALI1144		Comp			Coord arcsec 2000	20 28 56.04 +39 24 10.4
Date first	1928		Date last	2016		Obs	11
Pa first	167		Pa last	165		P.A. Now (θ)	165°
Sep first	11.1		Sep last	11.6		Sep. Now (ρ)	11.6"
Mag pri	12.20		Mag sec	12.50		delta mag (ΔM)	0.3		Spectral class	G8+G2 (yellow/yellow)
Pri motion ra	-002		Sec motion ra	+004
Pri motion dec	+003		Sec motion dec	-002
Notes

rPM=1.746 This double is not physical.

Precise pa	164.8		Precise sep	11.572		Constellation	Cygnus		SAO	70088
Tycho2	3156-00126-1		Gaia DR2	35549593216

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20290+3924	ALI1144		1998	2	165	11.5	11.76	11.80		D	202856.04+392410.4
20290+3924	ALI1144		2002	3	165	11.5	11.76	11.80		D	202856.04+392410.4
20290+3924	ALI1144		2010	4	166	11.1	11.80	12.20			202856.04+392410.4
20290+3924	ALI1144		2016	7	165	11.6	12.20	12.50	G8+G2		202856.04+392410.4

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