19535+4939 ARG  87

Coord 2000	19535+4939		Discov num	ARG  87		Comp			Coord arcsec 2000	19 53 30.91 +49 38 46.3
Date first	1899		Date last	2018		Obs	20
Pa first	272		Pa last	272		P.A. Now (θ)	272°
Sep first	14.7		Sep last	14.4		Sep. Now (ρ)	14.4"
Mag pri	10.57		Mag sec	10.60		delta mag (ΔM)	0.03		Spectral class	F8 (yellow-white)
Pri motion ra	-004		Sec motion ra	-004
Pri motion dec	-011		Sec motion dec	-012
Notes	T (Parallax indicates physical)

Visually invisible, K-band or other infrared star rPM=0.079 (< 0.3, Physical double) This double is physical.

Precise pa	272.1		Precise sep	14.43		Constellation	Cygnus		SAO	48955
Tycho2	3566-01354-1		Gaia DR2	06809006976

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19535+4939	ARG 87		2005	10	271	14.8	10.57	10.60	F8	D	195330.91+493846.3
19535+4939	ARG 87		2014	13	271	14.7	10.57	10.60	F8		195330.91+493846.3
19535+4939	ARG 87		2015	15	271	14.7	10.57	10.60	F8		195330.91+493846.3
19535+4939	ARG 87		2018	16	272	14.4	10.57	10.60	F8		195330.91+493846.3

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