01491+5640 STI1694

Coord 2000	01491+5640		Discov num	STI1694		Comp			Coord arcsec 2000	01 49 07.73 +56 40 03.5
Date first	1911		Date last	2012		Obs	7
Pa first	11		Pa last	18		P.A. Now (θ)	18°
Sep first	11.1		Sep last	12.1		Sep. Now (ρ)	12.1"
Mag pri	9.86		Mag sec	13.50		delta mag (ΔM)	3.64		Spectral class	A0 (white)
Pri motion ra	+003		Sec motion ra	+027
Pri motion dec	-012		Sec motion dec	-009
Notes

rPM=0.85 This double is not physical.

Precise pa	17.7		Precise sep	12.135		Constellation	Cassiopeia		SAO	22646
Tycho2	3692-02452-1		HD	236884		last precise pa	17.7		last precise sep	12.135

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01491+5640	STI1694		1999	4	16	12.0	9.86	13.50	A0	D	014907.73+564003.5
01491+5640	STI1694		2003	5	17	12.1	9.86	13.50	A0	D	014907.73+564003.5
01491+5640	STI1694		2012	6	18	12.1	9.86	13.50	A0		014907.73+564003.5

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