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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

00360+2959 STF 42AB

00^h 36^m 02.39^s +29° 59' 34.2" P.A. 20.00 sep 6.3 mag 8.39,9.05 Sp G2V+G7V dist. 57.77 pc (188.45 l.y.)

Coord 2000	00360+2959	Discov num	STF 42	Comp	AB	Coord arcsec 2000	00 36 02.39 +29 59 34.2
Date first	1824	Date last	2020	Obs	151
Pa first	34	Pa last	21	P.A. Now (θ)	20°
Sep first	6.6	Sep last	6.0	Sep. Now (ρ)	6.33"
Mag pri	8.39	Mag sec	9.05	delta mag (ΔM)	0.66	Spectral class	G2V+G7V (yellow/yellow)
Pri motion ra	+186	Sec motion ra	+181
Pri motion dec	-408	Sec motion dec	-399
Notes	N O (See Notes, Orbital solution)

rPM=0.023 (< 0.3, Physical double)

This double is physical.

00360+2959 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		74132	00 36 02 +29 59 34	STF 42 AB	2020	151	20	6.3	8.39	9.05	0.66	Y	<===
Show		74132	00 36 02 +29 59 34	STF 42 AC	2016	37	290	36.7	8.39	11.55	3.16
Show		74132	00 36 03 +29 59 41	STF 42 BC	2016	12	280	37.6	9.05	11.55	2.50

Triple system
3 visible stars in this system

OTHER CATALOGS AND DESIGNATIONS

Precise pa	20.8	Precise sep	6.037	Constellation	Hydra	SAO	74132
HIP	2844	Tycho2	1744-00173-1	Gaia DR2	2858460959243777408	HD	3266
ADS	497	BD	BD+29 105	Distance	57.77	Distance ly	188.45
last precise pa	20.8	last precise sep	6.037

ORBITAL ELEMENTS SOLUTION #1

Period (P)	1900y	± 190	Periastron (T)	1384y	± 32	Semi-major axis (a)	4.5a	± 0.3
Eccentricity (e)	0.53	± 0.07	Inclination (i)	155°	± 9	Longitude of periastron (ω)	206°	± 8
Node (Ω)	23°	± 2	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox			Last observation	2000

label	rho	theta
2000	6.253	21.6
2001	6.256	21.5
2002	6.260	21.4
2003	6.264	21.4
2004	6.268	21.3
2005	6.271	21.2
2006	6.275	21.1
2007	6.279	21.1
2008	6.283	21.0
2009	6.286	20.9
2010	6.290	20.8
2011	6.294	20.8
2012	6.297	20.7
2013	6.301	20.6
2014	6.304	20.5
2015	6.308	20.5
2016	6.312	20.4
2017	6.315	20.3
2018	6.319	20.2
2019	6.322	20.2
2020	6.326	20.1
2021	6.329	20.0
2022	6.333	20.0
2023	6.336	19.9
2024	6.340	19.8
2025	6.343	19.7
2026	6.347	19.7
2027	6.350	19.6
2028	6.353	19.5
2029	6.357	19.4
2030	6.360	19.4

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

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

ORBITAL ELEMENTS SOLUTION #2

Period (P)	4282.1595y	± 2333.3661	Periastron (T)	1514.2196y	± 760.9782	Semi-major axis (a)	12.58885a	± 6.47845
Eccentricity (e)	0.87571	± 0.15322	Inclination (i)	114.334°	± 15.816	Longitude of periastron (ω)	282.011°	± 19.883
Node (Ω)	76.522°	± 96.681	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox			Last observation	2015

label	rho	theta
2000	6.207	22.0
2001	6.211	22.0
2002	6.214	21.9
2003	6.218	21.8
2004	6.222	21.7
2005	6.225	21.7
2006	6.229	21.6
2007	6.233	21.5
2008	6.236	21.5
2009	6.240	21.4
2010	6.244	21.3
2011	6.247	21.3
2012	6.251	21.2
2013	6.254	21.1
2014	6.258	21.1
2015	6.262	21.0
2016	6.265	20.9
2017	6.269	20.9
2018	6.273	20.8
2019	6.276	20.7
2020	6.280	20.7
2021	6.283	20.6
2022	6.287	20.5
2023	6.291	20.5
2024	6.294	20.4
2025	6.298	20.3
2026	6.301	20.3
2027	6.305	20.2
2028	6.308	20.1
2029	6.312	20.1
2030	6.316	20.0

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
00360+2959	STF 42	AB	2007	100	21	6.2	8.39	9.05	G2V	NODV	003602.24+295938.4
00360+2959	STF 42	AB	2009	101	21	6.2	8.39	9.05	G2V	NODV	003602.24+295938.4
00360+2959	STF 42	AB	2010	109	21	6.0	8.39	9.05	G2V	NOD	003602.24+295938.4
00360+2959	STF 42	AB	2012	111	21	6.3	8.39	9.05	G2V	NOD	003602.24+295938.4
00360+2959	STF 42	AB	2013	129	21	6.1	8.39	9.05	G2V	NOD	003602.24+295938.4
00360+2959	STF 42	AB	2015	134	20	6.3	8.39	9.05	G2V+G7V	NO	003602.24+295938.4
00360+2959	STF 42	AB	2016	141	21	6.3	8.39	9.05	G2V+G7V	NO	003602.39+295934.2
00360+2959	STF 42	AB	2018	144	21	6.3	8.39	9.05	G2V+G7V	NO	003602.39+295934.2
00360+2959	STF 42	AB	2020	145	21	6.4	8.39	9.05	G2V+G7V	NO	003602.39+295934.2

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

WDS 00360+2959 STF 42AB : NOTES

discov_num	notes	refcode
STF 42	Hyperbolic orbit by Hopmann.	Hop1967
	sigma = areal constant in the true orbit = 0.1432 arcsec^2/yr
	q = periastron distance in the true orbit = 6".123
	Hopmann made small but unspecified corrections to the node and
	inclination before computing residuals and ephemeris.	Fin1970b
	All hyperbolic orbits rejected from Fourth Orbit Catalog	Wor1983
	A is a spectroscopic binary.
	AC: Optical pair, based on study of relative motion of the components
	using the method of apparent motion parameters.	Kiy2008

REFERENCES

refcode	metd	author	reference
Fin1970b	-	Finsen, W.S. & Worley, C.E.	1970ROCi..130..203F
Fin1970b		Republic Obs. Circ. 130, 203, 1970 (Third Orbit Catalog)
Hop1967	orb -	Hopmann, J.	1967MiWie..13...49H
Hop1967		Mitt. Sternw. Wien 13, 49, 1967
Izm2019	orb u	Izmailov, I.S.	2016AstL...45...30I
Izm2019		Ast. Lett. 45, 30, 2019
Izm2019
Izm2019
Kis2009	orb -	Kiselev, A.A., Romanenko, J.G., & Kalinichenko, O.A.	2009ARep...53..126K
Kis2009		ARep 53, 126, 2009 (SvAL 86, 148, 2009)
Kiy2008	-	Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S.	2008SvAL...32..405K
Kiy2008		SvAL 34, 405, 2008
Wor1983	-	Worley, C.E. & Heintz, W.D.	1983PUSNO..24g...1W
Wor1983		Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)

DISCOVERER

discov	author
STF	Struve, F.G.W.

WDS 00360+2959 STF 42AB : VISUAL OBSERVATIONS REPORTS

Show	date	username	difficulty	separation	pa_estim	interest	notes
Show	21/11/09	daedalus1	mean difficulty	separated			Seeing Pickering 6, measures: theta 019 deg., rho 6".12

WDS 00360+2959 STF 42AB : MEASURES

No records found.

WDS 00360+2959 STF 42AB : Virtual Eyepiece

Radius:

WDS 00360+2959 STF 42AB : Aladin DSS image @ 00^h 36^m 02.39^s +29° 59' 34.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9

WDS 00360+2959 STF 42AB : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	sep	pa	dist(')
Show		00360+2959	STF 42	AB	6.33	20
Show		00360+2959	STF 42	AC	36.70	290
Show		00360+2959	STF 42	BC	37.60	280	1
Show		00345+3015	COU 654		0.30	209	26
Show		00379+3010	CRB 30		6.10	1	26
Show		00333+2957	WIS 11		399.40	52	36
Show		00378+3031	A 915		1	130	39
Show		00329+3007	FOX 111		23.10	27	42
Show		00329+2957	BRT 231		4.30	33	42
Show		00359+2914	ES 314	AB	7.60	202	46
Show		00359+2914	TOK 445	AC	999.90	50	46
Show		00378+2913	ES 315		2.30	87	53
Show		00337+3049	CRB 29		35.80	1	58
Show		00337+2932	HJ 1032		13.20	247	58
Show		00331+2915	AZC 4		26.50	72	60
Show		00393+3052	BU 491	AB	28.90	299	68
Show		00393+3052	BU 491	AC	32.20	104	68
Show		00393+3052	BTM 1	Aa,Ab	0.40	56	68
Show		00388+3101	AG 430		255.40	117	72
Show		00301+2945	BU 1095	AB	2	16	79
Show		00301+2945	BU 1095	AC	136.60	131	79
Show		00301+2945	DRS 34	AD	192.10	356	79
Show		00423+2919	COU 658		0.70	128	91
Show		00409+3107	TOK 378	AB	812.40	123	92
Show		00294+3036	SMA 5		6.90	194	94
Show		00431+2941	CVR 16		71.40	21	94
Show		00409+3107	RAO 3	Ba,Bb	1.60	277	96
Show		00428+2924	A 917		1.30	120	96
Show		00361+2821	SKF 221		1.40	214	99
Show		00357+2821	DAM1274		13.50	86	99
Show		00310+2844	GII 74		1.30	54	101
Show		00310+2839	CTU 1	Aa,Ab	0.90	224	102
Show		00310+2839	HAU 2	AB	12.40	279	102
Show		00342+3139	HDS 75		0.10	252	103
Show		00320+2831	S 386	AB	43.40	17	104
Show		00320+2831	FYM 206	AC	14	50	104
Show		00356+2810	HAU 8	AB	10.20	272	105
Show		00278+2938	CBL 575		17.70	214	110
Show		00328+2817	STT 14	AB	8.60	159	112
Show		00328+2817	STT 14	AC	58.20	88	112
Show		00328+2817	FYM 205	AD	26	177	112
Show		00340+2810	LDS3179		26	47	113
Show		00398+2818	LDS3187		19.50	351	115
Show		00442+2913	HJL1006		157.60	123	116
Show		00266+3011	WSI 19		8.10	114	124
Show		00274+3054	HDS 62		0.30	75	125
Show		00397+2803	LDS 867		102.10	135	125
Show		00262+3009	COU 652		1.40	2	129
Show		00295+3137	J 871		2.20	358	130
Show		00270+3058	COU 653		0.50	253	131
Show		00250+3015	SKF 21		4.60	131	132

00360+2959 : COMPONENTS

	A	B
B	pa=15.6° sep=6.75"
C	pa=292.3° sep=32.36"	pa=280.4° sep=32.27"

00360+2959 A

Coord arcsec 2000	003602.39+295934.2	Mag	8.39	Spectr	G2V	PmRA	186.0
PmDE	-408.0	SAO	74132	HIP	2844	Tycho2	1744-00173-1
Gaia DR2	2858460959243777408	HD	3266	ADS	497	BD	BD+29 105

Tycho2

TYCHO2	1744-00173-1	Pflag		RAmdeg	9.00986143	DEmdeg	29.99302246
PmRA	190.7	PmDE	-403.4	E RAmdeg	8	E DEmdeg	11
E pmRA	2.2	E pmDE	2.0	EpRAm	1991.62	EpDEm
Num	4	Q RAmdeg	1.1	Q DEmdeg	2.5	Q pmRA	1.1
Q pmDE	2.5	BTmag	9.126	E BTmag	0.022	VTmag	8.391
E VTmag	0.016	Prox	61	TYC	T	HYP
CCDM	A	RAdeg	9.00935861	DEdeg	29.99395028	EpRA 1990	1.78
EpDE 1990	1.72	E RAdeg	7.8	E DEdeg	11.2	Posflg
Corr	0.0

SAO

SAO	74132	DelFlag		RA1950		PmRA1950	0.0143
DE1950		PmDE1950	-0.401	Vmag	8.6	SpType	F8
CatNum	709	Dm number		HD	3266	M HD	0
GC	709	RA1950rad	0.14559606	DE1950rad	0.51877505	PmRA2000	0.0143
PmDE2000	-0.406

Hipparcos

Catalog	H	HIP	2844	Proxy	H	RAhms	00 36 02.24
DEdms	+29 59 38.4	Vmags		VarFlag	2	RAdeg	9.00933
DEdeg	29.994	AstroRef	A	Plx	18.93	MultiFlag
Source		Qual	A	M HIP	AB	Theta	23
Rho	6.193	HD	3266	BD	BD+29 105	CD
CP		VIred	0.76	SpType	G2V comp SB	R SpType

Hipparcos 2

HIP	2844	Sn	15	So	3	Nc	2
RArad	0.1572424298	DErad	0.5234941157	Plx	17.31	PmRA	184.58
PmDE	-411.25	E RArad	1.03	E DErad	0.65	E Plx	0.93
E pmRA	1.2	E pmDE	0.75	Hpmag	8.0911	E Hpmag	0.0022
SHp	0.012	VA	2	BV	0.672	E BV	0.02
VI	0.73

00360+2959 B

Coord arcsec 2000	003602.53+295940.7	Mag	9.05	Spectr	G7V	PmRA	181.0
PmDE	-399.0	SAO	74132	HIP	2844	Tycho2	1744-02937-1
HD	3266	ADS	497	BD	BD+29 105

Tycho2

TYCHO2	1744-02937-1	Pflag		RAmdeg	9.01054567	DEmdeg	29.99462152
PmRA	176.8	PmDE	-387.6	E RAmdeg	12	E DEmdeg	20
E pmRA	2.9	E pmDE	2.8	EpRAm	1991.66	EpDEm
Num	2	Q RAmdeg	1.1	Q DEmdeg	2.5	Q pmRA	1.1
Q pmDE	2.5	BTmag	9.833	E BTmag	0.033	VTmag	9.049
E VTmag	0.024	Prox	61	TYC	T	HYP
CCDM	B	RAdeg	9.01008278	DEdeg	29.99550972	EpRA 1990	1.84
EpDE 1990	1.75	E RAdeg	11.6	E DEdeg	19.9	Posflg
Corr	0.2

SAO

SAO	74132	DelFlag		RA1950		PmRA1950	0.0143
DE1950		PmDE1950	-0.401	Vmag	8.6	SpType	F8
CatNum	709	Dm number		HD	3266	M HD	0
GC	709	RA1950rad	0.14559606	DE1950rad	0.51877505	PmRA2000	0.0143
PmDE2000	-0.406

Hipparcos

Catalog	H	HIP	2844	Proxy	H	RAhms	00 36 02.24
DEdms	+29 59 38.4	Vmags		VarFlag	2	RAdeg	9.00933
DEdeg	29.994	AstroRef	A	Plx	18.93	MultiFlag
Source		Qual	A	M HIP	AB	Theta	23
Rho	6.193	HD	3266	BD	BD+29 105	CD
CP		VIred	0.76	SpType	G2V comp SB	R SpType

Hipparcos 2

HIP	2844	Sn	15	So	3	Nc	2
RArad	0.1572424298	DErad	0.5234941157	Plx	17.31	PmRA	184.58
PmDE	-411.25	E RArad	1.03	E DErad	0.65	E Plx	0.93
E pmRA	1.2	E pmDE	0.75	Hpmag	8.0911	E Hpmag	0.0022
SHp	0.012	VA	2	BV	0.672	E BV	0.02
VI	0.73

00360+2959 C

Coord arcsec 2000	003600.09+295946.5		Mag	11.55		PmRA	-1.0		PmDE	-10.0
SAO	74132		HIP	2844		HD	3266		ADS	497