00392+4921 STT  16

Coord 2000	00392+4921		Discov num	STT  16		Comp			Coord arcsec 2000	00 39 09.89 +49 21 16.5
Date first	1845		Date last	2015		Obs	21
Pa first	25		Pa last	22		P.A. Now (θ)	22°
Sep first	16.9		Sep last	12.3		Sep. Now (ρ)	12.3"
Mag pri	5.62		Mag sec	10.48		delta mag (ΔM)	4.86		Spectral class	K4III (yellow-orange)
Pri motion ra	+009		Sec motion ra
Pri motion dec	-005		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	22.3		Precise sep	12.307		Constellation	Cassiopeia		SAO	36550
HIP	3083		Tycho2	3257-02190-1		Gaia DR2	1238153728		HD	3574
HR	164		BD	BD+48 192		Distance	641.03		Distance ly	2091.04

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00392+4921	STT 16		1998	18	22	12.8	5.70	10.20	K4III	D	003909.89+492116.5
00392+4921	STT 16		2014	19	22	12.2	5.62	10.48	K4III		003909.89+492116.5
00392+4921	STT 16		2015	20	22	12.3	5.62	10.48	K4III		003909.89+492116.5

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