19579+4423 STT 393

Coord 2000	19579+4423		Discov num	STT 393		Comp			Coord arcsec 2000	19 57 52.55 +44 23 03.1
Date first	1843		Date last	2015		Obs	59
Pa first	235		Pa last	232		P.A. Now (θ)	232°
Sep first	22.2		Sep last	16.5		Sep. Now (ρ)	16.5"
Mag pri	8.26		Mag sec	9.01		delta mag (ΔM)	0.75		Spectral class	K0 (yellow-orange)
Pri motion ra	-015		Sec motion ra	-004
Pri motion dec	-033		Sec motion dec	-001
Notes	N L (See Notes, Linear solution)

Visually invisible, K-band or other infrared star rPM=0.933 This double is not physical.

Precise pa	231.7		Precise sep	16.457		Constellation	Cygnus		SAO	49032
Tycho2	3149-00276-1		Gaia DR2	88889012992		HD	189376

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19579+4423	STT 393		2006	40	232	16.9	8.26	9.01	K0	NLD	195752.55+442303.1
19579+4423	STT 393		2010	42	232	16.6	8.26	9.01	K0	NLD	195752.55+442303.1
19579+4423	STT 393		2015	47	232	16.5	8.26	9.01	K0	NL	195752.55+442303.1

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