19557+3443 HLM  33AD

Coord 2000	19557+3443		Discov num	HLM  33		Comp	AD		Coord arcsec 2000	19 55 40.02 +34 42 34.8
Date first	1924		Date last	2015		Obs	10
Pa first	128		Pa last	130		P.A. Now (θ)	130°
Sep first	14.2		Sep last	13.5		Sep. Now (ρ)	13.5"
Mag pri	10.70		Mag sec	13.80		delta mag (ΔM)	3.1		Spectral class	A3 (white)
Pri motion ra	-004		Sec motion ra	+001
Pri motion dec	-010		Sec motion dec	-015
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.47 Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19557+3443	HLM 33	AB	1894	2015	18	77	11.8	10.70	11.30	0.60
Show			19557+3443	HLM 33	AC	1894	2015	18	292	14.7	10.70	11.80	1.10
Show			19557+3443	HLM 33	AD	1924	2015	10	130	13.5	10.70	13.80	3.10		<===

Quadruple system
4 visible stars in this system

Precise pa	129.8		Precise sep	13.528		Constellation	Cygnus		Tycho2	2677-00851-1
Gaia DR2	62605135232		HD	226582

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19557+3443	HLM 33	AD	1998	2	130	13.6	10.70			N D	195540.02+344234.8
19557+3443	HLM 33	AD	2002	3	129	13.5	10.70	13.80		N D	195540.02+344234.8
19557+3443	HLM 33	AD	2012	4	129	13.8	10.70	13.80		N D	195540.02+344234.8
19557+3443	HLM 33	AD	2015	6	129	13.5	10.70	13.80	A3	N	195540.02+344234.8

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