01521+5430 SMA  24

Coord 2000	01521+5430		Discov num	SMA  24		Comp			Coord arcsec 2000	01 52 19.96 +54 28 36.2
Date first	1903		Date last	2015		Obs	13
Pa first	169		Pa last	170		P.A. Now (θ)	170°
Sep first	13.2		Sep last	13.1		Sep. Now (ρ)	13.1"
Mag pri	10.79		Mag sec	12.42		delta mag (ΔM)	1.63		Spectral class
Pri motion ra	-007		Sec motion ra	-007
Pri motion dec	-001		Sec motion dec	-001
Notes	N (See Notes)

Visually invisible, K-band or other infrared star Nature of this double is uncertain.

Precise pa	170.2		Precise sep	13.074		Constellation	Perseus		Tycho2	3688-01172-1
Gaia DR2	9702765440

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01521+5430	SMA 24		1999	6	170	13.1	10.79	12.42		N D	015219.96+542836.2
01521+5430	SMA 24		2004	8	170	13.1	10.79	12.42		N D	015219.96+542836.2
01521+5430	SMA 24		2010	9	170	12.9	10.79	12.42		N	015219.96+542836.2
01521+5430	SMA 24		2015	10	170	13.1	10.79	12.42		N	015219.96+542836.2

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