19563+3505 HJ 1455AC

Coord 2000	19563+3505		Discov num	HJ 1455		Comp	AC		Coord arcsec 2000	19 56 18.40 +35 05 00.6
Date first	1828		Date last	2016		Obs	14
Pa first	332		Pa last	333		P.A. Now (θ)	333°
Sep first	30.0		Sep last	45.9		Sep. Now (ρ)	45.9"
Mag pri	3.89		Mag sec	10.50		delta mag (ΔM)	6.61		Spectral class	K0III (yellow-orange)
Pri motion ra	-034		Sec motion ra	+001
Pri motion dec	-028		Sec motion dec	-006
Notes	N U (See Notes, Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=0.939 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Eta Cyg	69116	19563+3505	BU 980	AB	1879	2017	17	206	7.2	3.89	12.00	8.11
Show		69116	19563+3505	HJ 1455	AC	1828	2016	14	333	45.9	3.89	10.50	6.61		<===
Show		69116	19563+3505	HJ 1455	AD	1879	2016	12	163	47.5	3.89	10.40	6.51
Show		69116	19563+3505	BU 980	AE	1898	2016	8	247	56.5	3.89	11.50	7.61
Show		69116	19563+3505	BU 980	CE	2002	2015	6	206	70.3	12.50	12.90	0.40
Show		69116	19563+3505	BU 980	CF	2002	2013	2	264	8.3	12.50	14.70	2.20

Sextuple system
6 visible stars in this system

Precise pa	332.8		Precise sep	45.89		Constellation	Cygnus		SAO	69116
HIP	98110		Tycho2	2677-01816-1		Gaia DR2	63881617536		HD	188947
HR	7615		GC	27622		BD	BD+34 3798		Bayer	Eta Cygni
Bayer name	Eta Cyg		Flamsteed	21 Cygni		Flamsteed name	21 Cyg		Distance	41.37
Distance ly	134.95

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19563+3505	HJ 1455	AC	2007	10	333	46.2	3.89	10.50	K0III	N D	195618.40+350500.6
19563+3505	HJ 1455	AC	2012	13	333	46.4	3.89	10.50	K0III	N D	195618.40+350500.6
19563+3505	HJ 1455	AC	2016	14	333	45.9	3.89	10.50	K0III	N	195618.40+350500.6

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