00160-1637 BWL 2

00^h 15^m 58.08^s -16° 36' 57.9" P.A. 261.00 sep 0.1 mag 8.90,9.00 Sp M4.0

Coord 2000	00160-1637	Discov num	BWL 2	Comp		Coord arcsec 2000	00 15 58.08 -16 36 57.9
Date first	2011	Date last	2021	Obs	10
Pa first	90	Pa last	261.4	P.A. Now (θ)	261.4°
Sep first	0.1	Sep last	0.101	Sep. Now (ρ)	0.101"
Mag pri	8.90	Mag sec	9.00	delta mag (ΔM)	0.1	Spectral class	M4.0 (red)
Pri motion ra	-110	Sec motion ra
Pri motion dec	+035	Sec motion dec
Notes	O K (Orbital solution, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cetus

Gaia DR2

2368212771939556992

ORBITAL ELEMENTS

Period (P)	4.187y	± 0.039	Periastron (T)	2021.145y	± 0.057	Semi-major axis (a)	0.108a	± 0.007
Eccentricity (e)	0.433	± 0.09	Inclination (i)	63.6°	± 2.1	Longitude of periastron (ω)	98°	± 4.8
Node (Ω)	111.8°	± 5.2	Notes			Reference	Tok2021c
Equinox	2000		Last observation	2021		Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	140.4	0.049
2001	309.7	0.094
2002	13.8	0.068
2003	80.2	0.098
2004	120.8	0.077
2005	301.1	0.092
2006	358.1	0.071
2007	71.7	0.090
2008	110.7	0.095
2009	291.3	0.082
2010	344.1	0.076
2011	61.6	0.083
2012	103.3	0.104
2013	276.8	0.061
2014	332.1	0.082
2015	49.5	0.075
2016	96.6	0.107
2017	238.1	0.032
2018	321.8	0.089
2019	35.2	0.070
2020	90.0	0.105
2021	154.5	0.038
2022	312.7	0.093
2023	19.4	0.068
2024	82.8	0.100
2025	125.8	0.068
2026	304.2	0.093
2027	3.4	0.070
2028	74.8	0.093
2029	113.8	0.090
2030	295.0	0.087

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

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

WDS 00160-1637 BWL 2 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Tok2021c	orb -	Tokovinin, A.	2021IAUDS.203....1S
Tok2021c		Inf. Circ. 203, 1, 2021

DISCOVERER

idgroup	discov	author
1	BWL	Bowler, B.P., Liu, M.C., Shkolnik, E.L., Dupuy, T.J., Cieza, L.A., Kraus, A.L., &
1	BWL	Tamura, M.
10	BWL	Bowler, B.P., Shkolnik, E.L., Liu, M.C., Schlieder, J.E., Mann, A.W., Dupuy, T.J.,
10	BWL	Hinkley, S., Crepp, J., Johnson, J., Howard, A., Flagg, L., Weinberger, A., et al.
11	BWL	Bowler, B.P., Dupuy, T.J., Endl, M., Cochran, W.D., MacQueen, P.J., Fulton, B.J.,
11	BWL	Petigura, E.A., Howard, A.W., Hirsch, L., Kratter, K.M., Crepp, J.R., Biller, B.A.,
11	BWL	Johnson, M.C. & Wittenmyer, R.A.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00160-1637	BWL 2		2011	1	90	0.1	8.90	9.00	M4.0	K	001558.08-163657.9
00160-1637	BWL 2		2020	6	141	0.1	8.90	9.00	M4.0	K	001558.08-163657.9
00160-1637	BWL 2		2021	10	261	0.1	8.90	9.00	M4.0	O K	001558.08-163657.9

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

WDS 00160-1637 BWL 2 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 00160-1637 BWL 2 : MEASURES

No records found.

WDS 00160-1637 : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 00160-1637 : ALADIN DSS IMAGE @ 00^h 15^m 58.08^s -16° 36' 57.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 00160-1637 BWL 2 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		00160-1637	BWL 2		261	0.1
Show		00153-1645	SKF2139		308	33.7	14
Show		00155-1608	HEI 299		211	0.3	30
Show		00132-1711	HJ 1944		335	66.4	53
Show		00155-1537	HU 403		50	0.7	60
Show		00120-1600	ARA 8		133	10.7	68
Show		00200-1729	B 1906		106	0.8	78
Show		00184-1516	WSP 26		144	15.4	89
Show		00205-1535	WIS 7		17	999.9	90
Show		00210-1539	SLW 16		234	9.0	93
Show		00116-1749	B 2512		22	0.9	96
Show		00225-1707	HU 406	Ba,Bb	272	1.2	99
Show		00140-1815	BFR 2		203	118.1	102
Show		00083-1558	TDS1307		251	4.4	118
Show		00162-1435	HU 404		226	4.1	122
Show		00178-1436	SKF 298		28	4.4	124
Show		00076-1606	KPP2678		334	20.6	125
Show		00144-1429	DAM 623		338	314.8	131
Show		00168-1427	GAL 11		318	5.8	131
Show		00144-1424	GAL 296		101	24.0	133
Show		00111-1831	TDS1334		138	1.1	134
Show		00071-1551	HDS 11		267	0.4	136
Show		00251-1721	CBL 573		274	8.3	138
Show		00148-1411	RDR 1		311	7.1	148
Show		00113-1850	GWP 26		71	82.9	149
Show		00171-1406	GAL 298		337	23.1	153
Show		00183-1409	HJ 1948		168	16.5	153
Show		00234-1831	LDS3161		148	9.0	156
Show		00224-1432	HJ 1958		68	14.7	156
Show		00149-1913	ARA 513		253	1.8	156
Show		00256-1749	VOU 29		257	0.8	157
Show		00150-1913	LDS5266		291	120.8	158
Show		00103-1852	SKF2137		261	80.4	158
Show		00252-1509	CVR1039		95	4.3	160
Show		00172-1921	LDS 9	AB	101	114.9	165
Show		00172-1921	KPP4345	AC	328	7.5	165
Show		00172-1921	KPP4345	BC	284	120.1	166
Show		00164-1924	GWP 33		322	34.5	168
Show		00273-1557	CVR1045		78	4.4	169
Show		00277-1625	YR 1	Aa,Ab	300	0.1	169
Show		00277-1625	HJ 1968	AB	234	37.0	169
Show		00277-1625	BU 1343	AC	135	77.1	169
Show		00278-1657	STN 2		273	6.0	172
Show		00076-1825	HJ 3240		132	7.7	172
Show		00038-1632	GWP 8		201	107.8	176
Show		00070-1837	UC 322		63	44.7	176
Show		00269-1517	HU 408		285	2.3	177
Show		00200-1349	BU 256	AB	244	2.4	178
Show		00200-1349	LV 12	AC	293	57.9	178
Show		00053-1503	TDS1287		83	0.4	180
Show		00049-1811	UC 313		240	18.1	184

WDS 00160-1637 : COMPONENTS

	A
B	pa=261.0° sep=0.10"

00160-1637 A

Componente originario normalizzato	AB		Coord arcsec 2000	001558.08-163657.9		Mag	8.9		Spectral class	M4.0 (red)
PmRA	-110.00		PmDE	35.0

00160-1637 B

Componente originario normalizzato	AB		Coord arcsec 2000	001558.07-163657.9		Mag	9		Calc delta mag	0.1
Calc coord	yes