20165+3739 SLV   8AC

Coord 2000	20165+3739		Discov num	SLV   8		Comp	AC		Coord arcsec 2000	20 16 29.84 +37 38 35.4
Date first	1896		Date last	2015		Obs	13
Pa first	77		Pa last	77		P.A. Now (θ)	77°
Sep first	31.6		Sep last	31.8		Sep. Now (ρ)	31.8"
Mag pri	9.72		Mag sec	8.82		delta mag (ΔM)	0.9		Spectral class	B0III (blue-white)
Pri motion ra	-005		Sec motion ra	-004
Pri motion dec	-004		Sec motion dec	-004
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.156 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69728	20165+3739	BU 442	AB	1876	2015	28	103	18.7	9.72	8.04	1.68
Show		69728	20165+3739	SLV 8	AC	1896	2015	13	77	31.8	9.72	8.82	0.90		<===
Show		69728	20165+3739	ABH 135	AD	1896	2015	8	50	24.5	9.72	12.60	2.88
Show		69728	20165+3739	SLE 982	AG	1896	2015	11	10	88.5	9.72	10.61	0.89
Show		69728	20165+3739	SLE 982	AH	1985	2008	4	20	111.5	9.72	13.47	3.75
Show		69728	20165+3739	SLE 982	AI	1985	2015	5	44	63.3	9.72	13.50	3.78
Show		69728	20165+3739	SLE 982	AJ	1985	2012	5	35	96.5	9.72	13.10	3.38
Show		69728	20165+3739	SLE 982	AK	1896	2012	8	35	114.7	9.72	11.49	1.77
Show		69728	20165+3739	SLE 982	AL	1985	2015	6	27	177.5	9.72	9.49	0.23
Show		69728	20165+3739	SLE 982	AM	1985	2015	6	65	89.2	9.72	13.20	3.48
Show		69728	20165+3739	SLE 982	AN	1896	2012	8	77	156.2	9.72	12.41	2.69
Show		69728	20165+3739	SLE 982	AO	1985	2015	6	118	59.1	9.72	12.70	2.98
Show		69728	20165+3739	BU 442	AP	1876	2016	19	156	4.1	9.72	10.80	1.08
Show		69728	20165+3739	BU 442	AQ	1888	2015	8	157	8.7	9.72	13.10	3.38
Show		69728	20165+3739	BU 442	AR	1876	2015	17	332	19.2	9.72	11.07	1.35
Show		69728	20165+3739	BU 442	BC	1876	2015	36	49	16.8	8.04	8.82	0.78
Show		69728	20165+3739	BU 442	BD	1896	2015	8	1	19.9	8.04	12.60	4.56
Show		69728	20165+3739	ABH 135	BE	1896	2015	10	88	50.0	8.04	12.89	4.85
Show		69728	20165+3739	ABH 135	BF	1988	2015	6	140	64.2	8.04	12.46	4.42
Show		69728	20165+3739	ABH 135	BO	1988	2015	5	125	41.4	8.04	12.70	4.66
Show		69728	20165+3739	BU 442	BP	1896	2015	8	282	18.7	8.04	10.80	2.76
Show		69728	20165+3739	BU 442	BR	1876	2015	16	307	34.5	8.04	11.07	3.03
Show		69728	20165+3739	BU 442	BS	1898	2016	5	124	3.7	8.04	14.50	6.46
Show		69728	20165+3739	BU 442	BT	1876	2016	11	164	6.7	8.04	11.50	3.46
Show		69728	20165+3739	BU 442	BU	1896	2015	11	74	25.4	8.04	11.50	3.46
Show		69728	20165+3739	BU 442	BV	1896	2015	10	86	31.1	8.04	12.00	3.96
Show		69730	20165+3739	BU 442	CD	1896	2015	14	306	15.2	8.82	12.60	3.78
Show		69730	20165+3739	BU 442	CU	1879	2016	19	110	12.4	8.82	11.50	2.68
Show		69730	20165+3739	BU 442	CV	1879	2016	20	116	20.2	8.82	12.00	3.18
Show		69730	20165+3739	BU 442	UV	1896	2015	13	127	8.1	11.50	12.00	0.50

22-fold system
22 visible stars in this system

Precise pa	77.4		Precise sep	31.75		Constellation	Cygnus		SAO	69728
Tycho2	3151-03461-1		Gaia DR2	58390686080

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20165+3739	SLV 8	AC	1998	8	77	31.6	9.72	8.82		D	201629.84+373835.4
20165+3739	SLV 8	AC	2008	9	78	31.8	9.72	8.82		D	201629.84+373835.4
20165+3739	SLV 8	AC	2012	12	83	31.8	9.72	8.82	B0III	N D	201629.84+373835.4
20165+3739	SLV 8	AC	2015	13	77	31.8	9.72	8.82	B0III	N	201629.84+373835.4

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