20041+1700 EGG   3Ba,Bb

Coord 2000	20041+1700		Discov num	EGG   3		Comp	Ba,Bb		Coord arcsec 2000	20 04 08.88 +16 59 57.1
Date first	1963		Date last	1975		Obs	4
Pa first	70		Pa last	223		P.A. Now (θ)	223°
Sep first	0.1		Sep last	0.2		Sep. Now (ρ)	0.2"
Mag pri	10.20		Mag sec	10.20		delta mag (ΔM)	0		Spectral class	A8V (white)
Pri motion ra	-006		Sec motion ra
Pri motion dec	-005		Sec motion dec
Notes	N (See Notes)

Visually invisible, K-band or other infrared star 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		105636	20041+1700	STF2622	AB	1831	2018	51	193	6.0	8.74	9.46	0.72
Show		105636	20041+1700	STF2622	AC	1892	2015	19	304	17.1	8.74	11.70	2.96
Show		105636	20041+1700	EGG 3	Ba,Bb	1963	1975	4	223	0.2	10.20	10.20	0.00		<===

Quadruple system
3 visible stars in this system

Precise pa	223.2		Precise sep	0.16		Constellation	Sagitta		SAO	105636
HIP	98825		Tycho2	1621-01321-2		Gaia DR2	43991360768		HD	354615
BD	BD+16 4120		Distance	5882.35		Distance ly	19188.23

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20041+1700	EGG 3	Ba,Bb	1975	4	223	0.2	10.20	10.20			200408.88+165957.1

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