01217+5752 LYS 7 AC

01^h 21^m 39.85^s +57° 52' 23.9" P.A. 238.00 sep 14.3 mag 12.50,13.50

Coord 2000	01217+5752		Discov num	LYS 7		Comp	AC		Coord arcsec 2000	01 21 39.85 +57 52 23.9
Date first	1984		Date last	2015		Obs	7
Pa first	240		Pa last	237.5		P.A. Now (θ)	237.5°
Sep first	14.4		Sep last	14.293		Sep. Now (ρ)	14.293"
Mag pri	12.50		Mag sec	13.50		delta mag (ΔM)	1		Spectral class
Pri motion ra	-004		Sec motion ra	-002
Pri motion dec	-017		Sec motion dec	-002
Notes

rPM=0.866

This double is not physical.

01217+5752 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			01 21 40 +57 52 24	LYS 7 AB	2015	8	297	20.5	12.50	14.00	1.50
Show			01 21 40 +57 52 24	LYS 7 AC	2015	7	238	14.3	12.50	13.50	1.00		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cassiopeia

Gaia DR2

413784467921452672