20327+2903 ARY  47AB

Coord 2000	20327+2903		Discov num	ARY  47		Comp	AB		Coord arcsec 2000	20 32 41.33 +29 03 14.0
Date first	1892		Date last	2015		Obs	18
Pa first	109		Pa last	108		P.A. Now (θ)	108°
Sep first	127.9		Sep last	128.1		Sep. Now (ρ)	128.1"
Mag pri	8.24		Mag sec	8.32		delta mag (ΔM)	0.08		Spectral class	K3II+K0 (yellow-orange/yellow-orange)
Pri motion ra	-005		Sec motion ra	+004
Pri motion dec	-014		Sec motion dec	-002
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=1.009 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		88818	20327+2903	ARY 47	AB	1892	2015	18	108	128.1	8.24	8.32	0.08		<===
Show		88823	20327+2903	ARY 27	BC	1892	2015	14	50	35.3	8.32	10.89	2.57
Show		88823	20327+2903	ARY 27	BD	1892	2015	16	178	90.0	8.32	9.46	1.14

Quadruple system
4 visible stars in this system

Precise pa	107.6		Precise sep	128.07		Constellation	Vulpecula		SAO	88818
Tycho2	2169-00858-1		Gaia DR2	52519200768		HD	195834

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20327+2903	ARY 47	AB	2013	13	108	127.8	8.24	8.32	K3II+K0		203241.33+290314.0
20327+2903	ARY 47	AB	2015	14	108	128.1	8.24	8.32	K3II+K0	N	203241.33+290314.0

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