19509+4444 SMA 101

Coord 2000	19509+4444		Discov num	SMA 101		Comp			Coord arcsec 2000	19 50 48.40 +44 44 42.1
Date first	1921		Date last	2015		Obs	14
Pa first	47		Pa last	50		P.A. Now (θ)	50°
Sep first	10.0		Sep last	9.3		Sep. Now (ρ)	9.3"
Mag pri	12.80		Mag sec	13.20		delta mag (ΔM)	0.4		Spectral class
Pri motion ra	-001		Sec motion ra	+003
Pri motion dec	+001		Sec motion dec	-004
Notes	R (Red magnitudes)

Visually invisible, K-band or other infrared star rPM=1.281 This double is not physical.

Precise pa	49.9		Precise sep	9.271		Constellation	Cygnus		Tycho2	3149-00244-1
Gaia DR2	07369336192

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19509+4444	SMA 101		2006	2	48	9.6	11.40	11.90			195051.42+444438.6
19509+4444	SMA 101		2007	3	49	9.5	11.40	11.90			195051.42+444438.6
19509+4444	SMA 101		2010	6	49	9.6	12.80	13.20		R	195048.40+444442.1
19509+4444	SMA 101		2014	7	50	9.3	12.80	13.20		R	195048.40+444442.1
19509+4444	SMA 101		2015	10	50	9.3	12.80	13.20		R	195048.40+444442.1

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