20339+3515 WRH  34AB (47 Cyg)

Coord 2000	20339+3515		Discov num	WRH  34		Comp	AB		Coord arcsec 2000	20 33 54.19 +35 15 03.1
Date first	1949		Date last	1998		Obs	27
Pa first	274		Pa last	278		P.A. Now (θ)	278°
Sep first	0.1		Sep last	0.3		Sep. Now (ρ)	0.3"
Mag pri	4.84		Mag sec	7.30		delta mag (ΔM)	2.46		Spectral class	K2Ib+B3V (yellow-orange/blue-white)
Pri motion ra	+002		Sec motion ra
Pri motion dec	-005		Sec motion dec
Notes	N (See Notes)

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	47 Cyg	70203	20339+3515	WRH 34	AB	1949	1998	27	278	0.3	4.84	7.30	2.46		<===
Show		70203	20339+3515	BU 1490	AC	1880	2013	12	210	115.1	4.82	11.87	7.05

Triple system
3 visible stars in this system

Precise pa	278.4		Precise sep	0.282		Name	47 Cyg		Constellation	Cygnus
SAO	70203		HIP	101474		Tycho2	2694-02168-1		Gaia DR2	31818264064
HD	196093		HR	7866		GC	28630		BD	BD+34 4079
Flamsteed	47 Cygni		Flamsteed name	47 Cyg		Distance	847.46		Distance ly	2764.41

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20339+3515	WRH 34	AB	1998	27	278	0.3	4.84	7.30	K2Ib B3V	N	203354.19+351503.1
20339+3515	WRH 34	AB	2003	28	285	0.3	4.84	7.30	K2Ib+B3V	N	203354.19+351503.1

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