02091+5515 STI1789

Coord 2000	02091+5515		Discov num	STI1789		Comp			Coord arcsec 2000	02 09 01.89 +55 14 01.6
Date first	1915		Date last	2016		Obs	4
Pa first	308		Pa last	319		P.A. Now (θ)	319°
Sep first	7.2		Sep last	7.2		Sep. Now (ρ)	7.2"
Mag pri	11.31		Mag sec	12.30		delta mag (ΔM)	0.99		Spectral class
Pri motion ra	+004		Sec motion ra	+008
Pri motion dec	-017		Sec motion dec	-003
Notes

Nature of this double is uncertain.

Constellation

Perseus

Tycho2

3689-01638-1

last precise pa

318.8

last precise sep

7.199

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02091+5515	STI1789		1999	2	317	7.1	11.31	12.30		D	020901.89+551401.6
02091+5515	STI1789		2003	3	317	7.2	11.31	12.30		D	020901.89+551401.6
02091+5515	STI1789		2016	4	319	7.2	11.31	12.30			020901.89+551401.6

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