19496+3939 HJ 2903AB

Coord 2000	19496+3939		Discov num	HJ 2903		Comp	AB		Coord arcsec 2000	19 49 38.37 +39 38 47.5
Date first	1831		Date last	2015		Obs	14
Pa first	159		Pa last	150		P.A. Now (θ)	150°
Sep first	8.0		Sep last	6.0		Sep. Now (ρ)	6"
Mag pri	9.32		Mag sec	12.80		delta mag (ΔM)	3.48		Spectral class	G0 (yellow)
Pri motion ra	-015		Sec motion ra	-018
Pri motion dec	-036		Sec motion dec	-023
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.342 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		68915	19496+3939	HJ 2903	AB	1831	2015	14	150	6.0	9.32	12.80	3.48		<===
Show		68915	19496+3939	SKF 84	AC	1998	2015	8	125	10.6	9.30	14.90	5.60

Triple system
3 visible stars in this system

Precise pa	149.7		Precise sep	6.04		Constellation	Cygnus		SAO	68915
Tycho2	3140-00605-1		Gaia DR2	77337888256		HD	226030

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19496+3939	HJ 2903	AB	1998	8	150	6.5	9.32	12.80	G0	D	194938.37+393847.5
19496+3939	HJ 2903	AB	2002	9	150	6.3	9.32	12.80	G0	D	194938.37+393847.5
19496+3939	HJ 2903	AB	2015	10	149	6.1	9.32	12.80	G0	N	194938.37+393847.5

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