18546+2754 DAL   5AC

Coord 2000	18546+2754		Discov num	DAL   5		Comp	AC		Coord arcsec 2000	18 54 35.26 +27 54 16.5
Date first	1907		Date last	2015		Obs	6
Pa first	272		Pa last	274		P.A. Now (θ)	274°
Sep first	27.3		Sep last	26.2		Sep. Now (ρ)	26.2"
Mag pri	11.92		Mag sec	12.07		delta mag (ΔM)	0.15		Spectral class
Pri motion ra	-018		Sec motion ra	-006
Pri motion dec	-011		Sec motion dec	-001
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.74 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		86573	18546+2754	BRT3335	AB	1897	2015	7	70	10.0	11.92	11.71	0.21
Show		86573	18546+2754	DAL 5	AC	1907	2015	6	274	26.2	11.92	12.07	0.15		<===

Triple system
3 visible stars in this system

Precise pa	273.9		Precise sep	26.179		Constellation	Lyra		SAO	86573
Gaia DR2	2040220928601895552

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18546+2754	DAL 5	AC	2001	4	273	26.7	11.92	12.07		D	185435.26+275416.5
18546+2754	DAL 5	AC	2002	5	274	26.3	11.92	12.07		NUD	185435.26+275416.5
18546+2754	DAL 5	AC	2015	6	274	26.2	11.92	12.07		NU	185435.26+275416.5

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