18092+4314 ES 1417BC

Coord 2000	18092+4314		Discov num	ES 1417		Comp	BC		Coord arcsec 2000	18 09 08.59 +43 13 37.3
Date first	1915		Date last	2015		Obs	6
Pa first	276		Pa last	277		P.A. Now (θ)	277°
Sep first	3.2		Sep last	4.2		Sep. Now (ρ)	4.2"
Mag pri	11.50		Mag sec	14.50		delta mag (ΔM)	3		Spectral class
Pri motion ra	+004		Sec motion ra
Pri motion dec	-006		Sec motion dec
Notes	W

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		47261	18092+4314	ES 1417	AB	1893	2015	14	206	13.9	9.21	11.50	2.29
Show		47261	18092+4314	ES 1417	BC	1915	2015	6	277	4.2	11.50	14.50	3.00		<===

Triple system
3 visible stars in this system

Constellation	Hercules		SAO	47261		Tycho2	3114-00380-1		last precise pa	276.9
last precise sep	4.18

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18092+4314	ES 1417	BC	1915	1	276	3.2	10.40	14.40			180930.00+431400.0
18092+4314	ES 1417	BC	1998	2	277	4.2	11.50	14.50		D	180908.59+431337.3
18092+4314	ES 1417	BC	2003	3	277	4.2	11.50	14.50		D	180908.59+431337.3
18092+4314	ES 1417	BC	2013	5	277	4.3	11.50	14.50			180908.59+431337.3
18092+4314	ES 1417	BC	2015	6	277	4.2	11.50	14.50			180908.59+431337.3

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