19399+3001 SLE 661

Coord 2000	19399+3001		Discov num	SLE 661		Comp			Coord arcsec 2000	19 39 51.78 +30 00 34.0
Date first	1984		Date last	2015		Obs	4
Pa first	159		Pa last	158		P.A. Now (θ)	158°
Sep first	10.9		Sep last	10.9		Sep. Now (ρ)	10.9"
Mag pri	9.58		Mag sec	13.50		delta mag (ΔM)	3.92		Spectral class	B9 (blue-white)
Pri motion ra	-001		Sec motion ra
Pri motion dec	-003		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	157.9		Precise sep	10.923		Constellation	Cygnus		Tycho2	2656-04864-1
Gaia DR2	46343159552		HD	332384

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19399+3001	SLE 661		1998	2	158	10.9	9.58	10.80		D	193951.78+300034.0
19399+3001	SLE 661		2002	3	158	10.9	9.58	13.50		D	193951.78+300034.0
19399+3001	SLE 661		2015	4	158	10.9	9.58	13.50	B9		193951.78+300034.0

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