00324+0657 MCA   1Aa,Ab

Coord 2000	00324+0657		Discov num	MCA   1		Comp	Aa,Ab		Coord arcsec 2000	00 32 23.75 +06 57 19.6
Date first	1977		Date last	2014		Obs	63
Pa first	279		Pa last	244		P.A. Now (θ)	351.2°
Sep first	0.3		Sep last	0.1		Sep. Now (ρ)	0.02"
Mag pri	5.84		Mag sec	7.99		delta mag (ΔM)	2.15		Spectral class	B9.5V (blue-white)
Pri motion ra	+035		Sec motion ra
Pri motion dec	+002		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		109262	00324+0657	MCA 1	Aa,Ab	1977	2014	63	351	0.0	5.84	7.99	2.15	Y	<===
Show	51 Psc	109262	00324+0657	STF 36	AB	1782	2011	69	82	28.1	5.68	9.52	3.84
Show		109262	00324+0657	STF 36	AC	1893	2011	16	226	174.0	5.68	9.94	4.26
Show		109262	00324+0657	GMC 10	AD	2000	2011	3	309	77.7	5.68	13.10	7.42

Quintuple system
4 visible stars in this system

Precise pa	244		Precise sep	0.052		Constellation	Pisces		SAO	109262
HIP	2548		Tycho2	0016-01423-1		HD	2913		HR	132
GC	636		ADS	449		BD	BD+06 64		Flamsteed	51 Piscium
Flamsteed name	51 Psc		Distance	80.97		Distance ly	264.12		last precise pa	244
last precise sep	0.052

Period (P)	27.41y		Periastron (T)	1988.97y		Semi-major axis (a)	0.16a
Eccentricity (e)	0.807		Inclination (i)	111.2°		Longitude of periastron (ω)	13°
Node (Ω)	105.3°		Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2008

label rho theta 2000 0.280 282.9 2001 0.283 282.0 2002 0.284 281.1 2003 0.282 280.2 2004 0.277 279.3 2005 0.271 278.4 2006 0.261 277.3 2007 0.250 276.3 2008 0.235 275.0 2009 0.218 273.6 2010 0.197 272.0 2011 0.174 269.9 2012 0.147 267.1 2013 0.115 262.8 2014 0.079 255.0 2015 0.039 231.3 2016 0.028 129.6 2017 0.021 351.2 2018 0.076 304.5 2019 0.122 296.9 2020 0.159 293.2 2021 0.188 290.8 2022 0.213 289.1 2023 0.233 287.6 2024 0.249 286.4 2025 0.261 285.3 2026 0.271 284.3 2027 0.278 283.3 2028 0.282 282.4 2029 0.284 281.5 2030 0.283 280.6 Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00324+0657	MCA 1	Aa,Ab	2004	46	281	0.3	5.84	7.99	B9.5V	NOD	003223.75+065719.6
00324+0657	MCA 1	Aa,Ab	2008	47	268	0.2	5.84	7.99	B9.5V	NOD	003223.75+065719.6
00324+0657	MCA 1	Aa,Ab	2014	58	244	0.1	5.84	7.99	B9.5V	NO	003223.75+065719.6

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