19432+2318 BKO 435AF

Coord 2000	19432+2318		Discov num	BKO 435		Comp	AF		Coord arcsec 2000	19 43 10.97 +23 17 45.3
Date first	1986		Date last	2015		Obs	4
Pa first	264		Pa last	265		P.A. Now (θ)	265°
Sep first	6.8		Sep last	6.8		Sep. Now (ρ)	6.8"
Mag pri	9.43		Mag sec	14.50		delta mag (ΔM)	5.07		Spectral class	O6.5V (blue)
Pri motion ra	-003		Sec motion ra
Pri motion dec	-006		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		87621	19432+2318	POU4026	AB	1892	2015	13	301	9.0	9.43	12.50	3.07
Show		87621	19432+2318	POU4027	AC	1892	2015	12	307	17.7	9.43	11.30	1.87
Show		87621	19432+2318	POU4028	AD	1892	2015	12	340	17.5	9.43	11.10	1.67
Show		87621	19432+2318	BKO 435	AE	1953	2015	7	244	7.3	9.43	14.00	4.57
Show		87621	19432+2318	BKO 435	AF	1986	2015	4	265	6.8	9.43	14.50	5.07		<===
Show		87621	19432+2318	SS 8	AG	1953	2015	6	320	21.4	9.43	14.20	4.77
Show		87621	19432+2318	SS 8	AH	1953	2015	4	292	22.8	9.43	15.70	6.27
Show		87621	19432+2318	SS 8	AI	1953	2015	4	333	25.4	9.43	15.40	5.97
Show		87621	19432+2318	SS 8	AJ	1953	2015	4	278	26.7	9.43	14.20	4.77
Show		87621	19432+2318	SS 8	AK	1953	2015	6	320	30.8	9.43	14.80	5.37
Show		87621	19432+2318	SS 8	AL	1953	2015	6	310	31.5	9.43	12.90	3.47
Show		87621	19432+2318	SS 8	AM	1953	2015	3	332	33.5	9.43	13.80	4.37
Show		87621	19432+2318	SS 8	AN	1892	2015	7	317	36.3	9.43	12.20	2.77
Show		87621	19432+2318	SS 8	AO	1892	2015	9	308	36.9	9.43	10.40	0.97
Show		87621	19432+2318	BKO 435	EF	2008	2015	2	355	2.5	14.00	14.50	0.50
Show		87621	19432+2318	J 490	OL	1911	2015	8	121	5.7	10.40	12.90	2.50
Show		87621	19432+2318	J 490	ON	1892	2015	6	46	6.0	10.40	12.20	1.80

15-fold system
15 visible stars in this system

Precise pa	264.6		Precise sep	6.805		Constellation	Vulpecula		SAO	87621
Tycho2	2139-02396-1		Gaia DR2	2020089287315488768		HD	344784

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19432+2318	BKO 435	AF	2000	2	265	6.7	9.40	14.50	O9.5V		194310.97+231745.3
19432+2318	BKO 435	AF	2015	3	265	6.8	9.43	14.50	O6.5V		194310.97+231745.3

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