01321+1657 STF 132AB

Coord 2000	01321+1657		Discov num	STF 132		Comp	AB		Coord arcsec 2000	01 32 03.12 +16 56 50.0
Date first	1783		Date last	2015		Obs	52
Pa first	28		Pa last	342		P.A. Now (θ)	342°
Sep first	15.8		Sep last	63.8		Sep. Now (ρ)	63.8"
Mag pri	6.88		Mag sec	10.61		delta mag (ΔM)	3.73		Spectral class	K0III (yellow-orange)
Pri motion ra	+122		Sec motion ra	+002
Pri motion dec	-196		Sec motion dec	+002
Notes	N L U (See Notes, Linear solution, Proper motion indicates non-physical)

-10 rPM=1.003 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			01321+1657	STF 132	AB	1783	2015	52	342	63.8	6.88	10.61	3.73	Y	<===
Show			01321+1657	STF 132	AC	1888	2015	17	249	67.7	6.89	11.59	4.70
Show			01321+1657	STF 132	AD	1888	2007	15	109	115.7	6.88	11.44	4.56
Show			01321+1657	STF 132	AE	1908	2016	4	307	11.0	6.88	14.10	7.22
Show			01321+1657	STF 132	DF	1908	2017	11	289	5.2	11.44	12.20	0.76

Sextuple system
6 visible stars in this system

Precise pa	341.6		Precise sep	63.818		Constellation	Pisces		SAO	92492
HIP	7143		Tycho2	1198-01596-1		Gaia DR2	64855961472		HD	9312
ADS	1202		BD	BD+16 167		Distance	57.74		Distance ly	188.35
last precise pa	341.6		last precise sep	63.818

Period (P)	36.5192d	± 0.0001	Periastron (T)	54094.832d (2006.982y)	± 0.008	Semi-major axis (a)	3m
Eccentricity (e)	0.1429	± 0.0003	Inclination (i)	65.4°	± 13.3	Longitude of periastron (ω)	203.34°	± 0.07
Node (Ω)	47.5°	± 11.4	Note			Grade	9	(1=Definitive, 9=Indet.)
Equinox			Last observation

label rho theta 2000-01-01 0.001 340.9 2001-01-01 0.001 342.0 2002-01-01 0.001 343.1 2003-01-01 0.001 344.2 2004-01-01 0.001 345.3 2005-01-01 0.001 346.3 2006-01-01 0.001 347.4 2007-01-01 0.001 348.4 2008-01-01 0.001 349.4 2009-01-01 0.001 350.3 2010-01-01 0.001 351.3 2011-01-01 0.001 352.2 2012-01-01 0.001 353.2 2013-01-01 0.001 354.1 2014-01-01 0.001 354.9 2015-01-01 0.001 355.8 2016-01-01 0.001 356.7 2017-01-01 0.001 357.5 2018-01-01 0.002 358.3 2019-01-01 0.002 359.1 2020-01-01 0.002 359.9 2021-01-01 0.002 0.7 2022-01-01 0.002 1.4 2023-01-01 0.002 2.1 2024-01-01 0.002 2.9 2025-01-01 0.002 3.6 2026-01-01 0.002 4.3 2027-01-01 0.002 5.0 2028-01-01 0.002 5.6 2029-01-01 0.002 6.3 2030-01-01 0.002 6.9 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
01321+1657	STF 132	AB	2007	49	342	62.0	6.88	10.61	K0III	NLD	013203.12+165650.0
01321+1657	STF 132	AB	2014	51	341	63.5	6.88	10.61	K0III	NLDU	013203.12+165650.0
01321+1657	STF 132	AB	2015	52	342	63.8	6.88	10.61	K0III	NL U	013203.12+165650.0

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