00387+4657 STF 45 AB (HD 3531)

00^h 38^m 41.60^s +46° 57' 24.6" P.A. 91.00 sep 19.1 mag 6.85,10.06 Sp G9III dist. 112.23 pc (366.09 l.y.)

Coord 2000	00387+4657		Discov num	STF 45		Comp	AB		Coord arcsec 2000	00 38 41.60 +46 57 24.6
Date first	1829		Date last	2015		Obs	36
Pa first	83		Pa last	90.5		P.A. Now (θ)	90.5°
Sep first	8.8		Sep last	19.078		Sep. Now (ρ)	19.078"
Mag pri	6.85		Mag sec	10.06		delta mag (ΔM)	3.21		Spectral class	G9III (yellow)
Pri motion ra	-066		Sec motion ra	+008
Pri motion dec	-013		Sec motion dec	-003
Notes	L (Linear solution)

rPM=1.11

This double is not physical.

00387+4657 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 3531	36542	00 38 42 +46 57 25	STF 45 AB	2015	36	91	19.1	6.85	10.06	3.21		<===
Show		36542	00 38 42 +46 57 25	BU 1347 AC	2015	6	260	104.7	6.85	13.72	6.87

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 3531		Constellation	Cassiopeia		SAO	36542		HIP	3045
Tycho2	3253-01817-1		Gaia DR2	389969428318472192		HD	3531		GC	761
BD	BD+46 129		Distance	112.23		Distance ly	366.09