00059+1805 STF3060AB

Coord 2000	00059+1805		Discov num	STF3060		Comp	AB		Coord arcsec 2000	00 05 55.56 +18 04 34.4
Date first	1830		Date last	2020		Obs	167
Pa first	111		Pa last	136		P.A. Now (θ)	135.6°
Sep first	3.9		Sep last	3.3		Sep. Now (ρ)	3.38"
Mag pri	9.32		Mag sec	9.65		delta mag (ΔM)	0.33		Spectral class	F8 (yellow-white)
Pri motion ra	-152		Sec motion ra	-157
Pri motion dec	-148		Sec motion dec	-154
Notes	N O V (See Notes, Orbital solution, Proper motion indicates physical)

rPM=0.036 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		91707	00 05 56 +18 04 34	STF 3060 AB	2020	167	136	3.4	9.32	9.65	0.33	Y	<===
Show		91707	00 05 56 +18 04 34	STF 3060 AC	2015	18	272	66.0	9.32	12.15	2.83
Show		91707	00 05 56 +18 04 34	LEP 1 AD	2015	10	359	572.9	9.32	7.47	1.85
Show		91707	00 05 56 +18 04 34	LEP 1 AE	2000	2	267	999.9	9.32	16.58	7.26

Quintuple system
5 visible stars in this system

Precise pa	135.5		Precise sep	3.266		Constellation	Hydra		SAO	91707
HIP	495		Tycho2	1181-01183-1		Gaia DR2	2773086595766697856		HD	113
ADS	60		BD	BD+17 5036		Distance	37.15		Distance ly	121.18
last precise pa	135.5		last precise sep	3.266

Period (P)	3804.2824y	± 1874.5757	Periastron (T)	1339.186y	± 963.466	Semi-major axis (a)	12.48656a	± 6.3321
Eccentricity (e)	0.82967	± 0.1408	Inclination (i)	78.895°	± 8.043	Longitude of periastron (ω)	289.172°	± 31.722
Node (Ω)	70.947°	± 38.097	Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox			Last observation	2015

label rho theta 2000 3.405 132.7 2001 3.404 132.8 2002 3.403 132.9 2003 3.401 133.1 2004 3.400 133.2 2005 3.399 133.3 2006 3.398 133.5 2007 3.396 133.6 2008 3.395 133.8 2009 3.394 133.9 2010 3.393 134.0 2011 3.391 134.2 2012 3.390 134.3 2013 3.389 134.4 2014 3.388 134.6 2015 3.387 134.7 2016 3.386 134.9 2017 3.385 135.0 2018 3.384 135.1 2019 3.383 135.3 2020 3.382 135.4 2021 3.380 135.6 2022 3.379 135.7 2023 3.378 135.8 2024 3.377 136.0 2025 3.377 136.1 2026 3.376 136.3 2027 3.375 136.4 2028 3.374 136.5 2029 3.373 136.7 2030 3.372 136.8		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
00059+1805	STF3060	AB	2006	140	134	3.3	9.32	9.65	K0	DV	000555.56+180434.4
00059+1805	STF3060	AB	2008	142	134	3.4	9.32	9.65	K0	DV	000555.56+180434.4
00059+1805	STF3060	AB	2010	145	134	3.4	9.32	9.65	K0	NVD	000555.56+180434.4
00059+1805	STF3060	AB	2011	150	135	3.4	9.32	9.65	K0	NVD	000555.56+180434.4
00059+1805	STF3060	AB	2012	150	134	3.3	9.32	9.65	F8	NVD	000555.56+180434.4
00059+1805	STF3060	AB	2015	151	135	3.4	9.32	9.65	F8	NV	000555.56+180434.4
00059+1805	STF3060	AB	2016	156	136	3.4	9.32	9.65	F8	NV	000555.56+180434.4
00059+1805	STF3060	AB	2020	160	136	3.3	9.32	9.65	F8	NO V	000555.56+180434.4

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