19560+1753 HJ 2908AC

Coord 2000	19560+1753		Discov num	HJ 2908		Comp	AC		Coord arcsec 2000	19 56 02.01 +17 53 12.6
Date first	1831		Date last	2001		Obs	8
Pa first	13		Pa last	12		P.A. Now (θ)	12°
Sep first	18.0		Sep last	18.9		Sep. Now (ρ)	18.9"
Mag pri	8.33		Mag sec	13.30		delta mag (ΔM)	4.97		Spectral class	B9 (blue-white)
Pri motion ra	-003		Sec motion ra
Pri motion dec	-008		Sec motion dec
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		105437	19560+1753	HO 116	AB	1886	2000	10	20	3.9	8.33	11.71	3.38
Show		105437	19560+1753	HJ 2908	AC	1831	2001	8	12	18.9	8.33	13.30	4.97		<===

Triple system
3 visible stars in this system

Precise pa	12		Precise sep	18.877		Constellation	Sagitta		SAO	105437
HIP	98087		Tycho2	1620-02894-1		Gaia DR2	97569136768		HD	188726
BD	BD+17 4149		Distance	729.93		Distance ly	2381.03

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19560+1753	HJ 2908	AC	2000	6	12	18.8	8.33	13.30	B9	D	195602.01+175312.6
19560+1753	HJ 2908	AC	2001	8	12	18.5	8.33	13.30	B9	D	195602.01+175312.6

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