03342+4837 BU 787 AD

03^h 34^m 12.97^s +48° 37' 02.9" P.A. 181.00 sep 34.5 mag 7.38,11.75 Sp B9.5V dist. 261.1 pc (851.71 l.y.)

Coord 2000	03342+4837		Discov num	BU 787		Comp	AD		Coord arcsec 2000	03 34 12.97 +48 37 02.9
Date first	1898		Date last	2016		Obs	14
Pa first	176		Pa last	181		P.A. Now (θ)	181°
Sep first	36.8		Sep last	34.47		Sep. Now (ρ)	34.47"
Mag pri	7.38		Mag sec	11.75		delta mag (ΔM)	4.37		Spectral class	B9.5V (blue-white)
Pri motion ra	+021		Sec motion ra	+022
Pri motion dec	-027		Sec motion dec	+018
Notes	N (See Notes)

rPM=1.316

This double is not physical.

03342+4837 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 21931	38946	03 34 13 +48 37 03	BU 787 AB	2016	20	293	5.2	7.38	11.90	4.52	Y
Show		38946	03 34 13 +48 37 03	BU 787 AD	2016	14	181	34.5	7.38	11.75	4.37		<===
Show		38946	03 34 13 +48 37 03	ARN 57 AE	2015	14	29	175.2	7.38	8.81	1.43

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Perseus		SAO	38946		HIP	16649		Tycho2	3317-00589-1
Gaia DR2	249282105184992384		HD	21931		BD	BD+48 949		Distance	261.1
Distance ly	851.71