12539+7440 STF1698

Coord 2000	12539+7440		Discov num	STF1698		Comp			Coord arcsec 2000	12 54 47.82 +74 39 06.1
Date first	1831		Date last	2010		Obs	26
Pa first	111		Pa last	109		P.A. Now (θ)	109°
Sep first	10.5		Sep last	10.1		Sep. Now (ρ)	10.1"
Mag pri	9.64		Mag sec	10.24		delta mag (ΔM)	0.6		Spectral class	A2 (white)
Pri motion ra	+024		Sec motion ra	+024
Pri motion dec	-012		Sec motion dec	-012
Notes	N (See Notes)

Nature of this double is uncertain.

Constellation	Draco		SAO	7697		Tycho2	4407-01792-1		last precise pa	108.6
last precise sep	10.12

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12539+7440	STF1698		1999	22	108	10.1	9.64	10.24	A2	D	125447.77+743906.3
12539+7440	STF1698		2008	24	109	10.1	9.64	10.24	A2	N D	125447.82+743906.1
12539+7440	STF1698		2010	26	109	10.1	9.64	10.24	A2	N	125447.82+743906.1

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