19450+5551 HJ 1439

Coord 2000	19450+5551		Discov num	HJ 1439		Comp			Coord arcsec 2000	19 45 00.07 +55 50 51.5
Date first	1828		Date last	2015		Obs	23
Pa first	195		Pa last	205		P.A. Now (θ)	205°
Sep first	30.0		Sep last	33.2		Sep. Now (ρ)	33.2"
Mag pri	7.83		Mag sec	10.04		delta mag (ΔM)	2.21		Spectral class	M0 (red)
Pri motion ra	-003		Sec motion ra	-032
Pri motion dec	-005		Sec motion dec	+003
Notes	S (Parallax indidates non-physical)

Visually invisible, K-band or other infrared star rPM=0.936 This double is not physical.

Precise pa	204.9		Precise sep	33.209		Constellation	Cygnus		SAO	31956
HIP	97170		Tycho2	3938-00229-1		Gaia DR2	12566786176		HD	187053
BD	BD+55 2257		Distance	1030.93		Distance ly	3362.89

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19450+5551	HJ 1439		2006	17	205	33.4	7.83	10.04	M0	NLD	194500.07+555051.5
19450+5551	HJ 1439		2010	19	205	33.2	7.83	10.04	M0	NLD	194500.07+555051.5
19450+5551	HJ 1439		2015	22	205	33.2	7.83	10.04	M0	L Y	194500.07+555051.5

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