19579+2032 BU  981AB

Coord 2000	19579+2032		Discov num	BU  981		Comp	AB		Coord arcsec 2000	19 57 56.77 +20 32 27.2
Date first	1880		Date last	2016		Obs	15
Pa first	111		Pa last	107		P.A. Now (θ)	107°
Sep first	3.1		Sep last	3.0		Sep. Now (ρ)	3"
Mag pri	8.32		Mag sec	11.40		delta mag (ΔM)	3.08		Spectral class	G5 (yellow)
Pri motion ra	+006		Sec motion ra	+010
Pri motion dec	+002		Sec motion dec	+001
Notes

rPM=0.41 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		87985	19 57 57 +20 32 27	BU 981 AB	2016	15	107	3.0	8.32	11.40	3.08		<===
Show		87985	19 57 57 +20 32 27	BU 981 AC	2015	10	56	30.3	8.32	12.12	3.80

Triple system
3 visible stars in this system

Precise pa	106.9		Precise sep	3.04		Constellation	Sagitta		SAO	87985
HIP	98255		Tycho2	1624-00517-1		Gaia DR2	1823387722283747072		HD	350851
BD	BD+20 4357		Distance	187.27		Distance ly	610.87

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19579+2032	BU 981	AB	1991	13	109	3.2	8.32	11.40	G5		195756.77+203227.2
19579+2032	BU 981	AB	2016	15	107	3.0	8.32	11.40	G5		195756.77+203227.2

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