Coord 2000	00504+5038	Discov num	BU 232	Comp	AB	Coord arcsec 2000	00 50 25.10 +50 37 49.6
Date first	1876	Date last	2018	Obs	122
Pa first	288	Pa last	256	P.A. Now (θ)	256.4°
Sep first	0.5	Sep last	0.9	Sep. Now (ρ)	0.85"
Mag pri	8.46	Mag sec	8.79	delta mag (ΔM)	0.33	Spectral class	F5 (yellow-white)
Pri motion ra	-036	Sec motion ra	-036
Pri motion dec	-007	Sec motion dec	-007
Notes	N O (See Notes, Orbital solution)

This double is physical.

00504+5038 SYSTEM COMPONENTS

Show

name

SAO

coord_2000

discov#

comp

first

last

obs

sep

mag1

mag2

d_mag

orb

current

Show

00504+5038

BU 232

1876

2018

122

256

0.8

8.46

8.79

0.33

<===

Show

00504+5038

BU 232

AB,C

1875

2018

300

24.5

8.46

10.06

1.60

Triple system
4 visible stars in this system

OTHER CATALOGS AND DESIGNATIONS

Precise pa	256.3	Precise sep	0.894	Constellation	Cassiopeia	SAO	21759
HIP	3926	Tycho2	3274-01051-1	Gaia DR2	7292909440	HD	4777
ADS	684	BD	BD+49 215	Distance	101.11	Distance ly	329.82
last precise pa	256.3	last precise sep	0.894

ORBITAL ELEMENTS

Period (P)	201y	± 9	Periastron (T)	1914.52y	± 0.29	Semi-major axis (a)	0.531a	± 0.033
Eccentricity (e)	0.621	± 0.014	Inclination (i)	31.9°	± 2.6	Longitude of periastron (ω)	11.4°	± 5.4
Node (Ω)	64.9°	± 5.7	Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2006

label	rho	theta
2000	0.846	247.7
2001	0.848	248.2
2002	0.850	248.6
2003	0.851	249.1
2004	0.852	249.6
2005	0.853	250.0
2006	0.854	250.5
2007	0.855	250.9
2008	0.856	251.4
2009	0.856	251.9
2010	0.856	252.3
2011	0.857	252.8
2012	0.857	253.2
2013	0.857	253.7
2014	0.856	254.1
2015	0.856	254.6
2016	0.856	255.1
2017	0.855	255.5
2018	0.854	256.0
2019	0.853	256.4
2020	0.852	256.9
2021	0.851	257.4
2022	0.850	257.8
2023	0.848	258.3
2024	0.846	258.8
2025	0.845	259.2
2026	0.843	259.7
2027	0.841	260.2
2028	0.838	260.7
2029	0.836	261.1
2030	0.834	261.6

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00504+5038	BU 232	AB	2006	111	250	0.9	8.46	8.79	F5	NOD	005025.10+503749.6
00504+5038	BU 232	AB	2007	112	250	0.9	8.46	8.79	F5	NOD	005025.10+503749.6
00504+5038	BU 232	AB	2009	114	253	0.9	8.46	8.79	F5	NOD	005025.10+503749.6
00504+5038	BU 232	AB	2015	116	256	0.8	8.46	8.79	F5	NO	005025.10+503749.6
00504+5038	BU 232	AB	2016	117	255	0.9	8.46	8.79	F5	NO	005025.10+503749.6
00504+5038	BU 232	AB	2018	121	256	0.9	8.46	8.79	F5	NO	005025.10+503749.6

If you need more information about this double, apply for a data request form to the WDS.