20250+1016 HJ 1509

Coord 2000	20250+1016		Discov num	HJ 1509		Comp			Coord arcsec 2000	20 24 57.06 +10 16 02.6
Date first	1828		Date last	2016		Obs	24
Pa first	182		Pa last	181		P.A. Now (θ)	181°
Sep first	20.0		Sep last	19.0		Sep. Now (ρ)	19"
Mag pri	9.83		Mag sec	9.97		delta mag (ΔM)	0.14		Spectral class	F8+F8 (yellow-white/yellow-white)
Pri motion ra	+009		Sec motion ra	+009
Pri motion dec	+001		Sec motion dec	-002
Notes

rPM=0.325 Nature of this double is uncertain.

Precise pa	180.7		Precise sep	19.021		Constellation	Delphinus		SAO	106079
Tycho2	1078-00531-1		Gaia DR2	90864160256		HD	194383

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20250+1016	HJ 1509		2004	16	180	18.8	9.83	9.97	F8 F8	D	202457.06+101602.6
20250+1016	HJ 1509		2010	19	180	19.0	9.83	9.97	F8+F8		202457.06+101602.6
20250+1016	HJ 1509		2016	20	181	19.0	9.83	9.97	F8+F8		202457.06+101602.6

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