01515-1020 BUP 26 AB (Baten Kaitos)

01^h 51^m 27.61^s -10° 20' 05.8" P.A. 40.00 sep 188.6 mag 3.85,10.15 Sp K0III dist. 72.05 pc (235.03 l.y.)

Coord 2000	01515-1020	Discov num	BUP 26	Comp	AB	Coord arcsec 2000	01 51 27.61 -10 20 05.8
Date first	1835	Date last	2011	Obs	13
Pa first	40	Pa last	40.1	P.A. Now (θ)	40.1°
Sep first	165.0	Sep last	188.61	Sep. Now (ρ)	188.61"
Mag pri	3.85	Mag sec	10.15	delta mag (ΔM)	6.3	Spectral class	K0III (yellow-orange)
Pri motion ra	+041	Sec motion ra	+040
Pri motion dec	-037	Sec motion dec	-009
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.507

This double is not physical.

01515-1020 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		148059	01 51 28 -10 20 06	BNU 1 Aa,Ab	1979	1	172	0.1	3.73
Show	Baten Kaitos	148059	01 51 28 -10 20 06	BUP 26 AB	2011	13	40	188.6	3.85	10.15	6.30		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Common name	Baten Kaitos	Var name	NSV638 Cet	Constellation	Cetus	SAO	148059
HIP	8645	Tycho2	5278-02437-1	Gaia DR2	2461150714559889920	HD	11353
HR	539	GC	2249	BD	BD-11 359	Bayer	Zeta Ceti
Bayer name	Zet Cet	Flamsteed	55 Ceti	Flamsteed name	55 Cet	FK5	62
Distance	72.05	Distance ly	235.03	Bayer greek	ζ Cet

WDS 01515-1020 BUP 26 AB (Baten Kaitos) : NOTES

discov_num	notes	refcode
BNU 1	Aa,Ab: zet Cet = 55 Cet = Baten Kaitos. A is a long-period
	spectroscopic binary, P = 1652d, and has been resolved by speckle
	interferometry. B is BD-11@360.
	NPOI uniform disk diameter 2.609 +/- 0.041 mas, Limb darkened diameter
	2.801 +/- 0.044 mas.	NOI2025

REFERENCES

refcode	metd	author	reference
NOI2025	not j	Baines, E.K., Clark, J.H. III, Kingsley, B.I., Schmitt, H.R. & Stone, J.M.	2025AJ....169..293B
NOI2025

DISCOVERER

discov	author
BNU	Bonneau, D.
BNU	Bonneau, D., Chesneau, O., Mourard, D., Berio, Ph., Clausse, J.M., Delaa, O.,
BNU	Marcotto, A., Perraut, K., Roussel, A., Spang,A., Stee, Ph., Tallon-Bosc,I. et al.
NOI	Benson, J.A., Hutter, D.J., Elias, N.M., Bowers, P.F., Johnston, K.J.,
NOI	Hajian, A.R., Armstrong, J.T., Mozurkewich, D., et al.
NOI	Nordgren, T.E., Germain, M.E., Benson, J.A., Mozurkewich, D., Sudol, J.J., Elias,
NOI	II, N.M., Hajian, A.R., White, N.M., Hutter, D.J., Johnston, K.J., Gauss, F.S.,
NOI	Armstrong, J.T., Pauls, T.A. & Rickard, L.J.
NOI	Armstrong, J.T., Nordgren, T.E., Germain, M.E., Hajian, A.R., Hindsley, R.B.,
NOI	Hummel, C.A., Mozurkewich, D. & Thessin, R.N.
NOI	Armstrong, J.T., Mozurkewich, D., Hajian, A.R., Johnston, K.J., Thessin, R.N.,
NOI	Peterson, D.M., Hummel, C.A., & Gilbreath, G.C.
NOI	Koubsky, P., Hummel, C.A., Harmanec, P., Tycner, C., van Leeuwen, F., Yang, S.,
NOI	Slechta, M., Bozic, H., Zavala, R.T., Ruzdjak, D., & Sudar, D.
NOI	Che, X., Monnier, J.D., Tycner, C., Kraus, S., Zavala, R.T., Baron, F., Pedretti,
NOI	E., ten Brummelaar, T., McAlister, H., Ridgway, S.T., Sturmann, J., Sturmann, L.,
NOI	& Turner, N.
NOI	Hutter, D.J., Zavala, R.T., Tycner, C., Benson, J.A., Hummel, C.A., Sanborn, J.,
NOI	Franz, O.G., & Johnston, K.J.
NOI	Schaefer, G.H., Hummel, C.A., Gies, D.R., Zavala, R.T., Monnier, J.D.,
NOI	Walter, F.M., Turner, N.H., Baron, F., ten Brummelaar, T., Che, X.,
NOI	Farrington, C.D., Kraus, S., Sturmann, J., & Sturmann, L.
NOI	Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter,
NOI	AJ 155, 30, 2018
NOI	Mason, B.D., Griffin, R.E.M., Zavala, R.T., Hummel, C.A., Hurowitz, H.M., Hurowitz,

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	dm_number	notes	coord_arcsec_2000
01515-1020	BUP 26	AB	2002	11	41	188.6	3.85	10.15			D	015127.61-102005.8
01515-1020	BUP 26	AB	2011	12	40	188.6	3.85	10.15			N D	015127.61-102005.8

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

WDS 01515-1020 BUP 26 AB (Baten Kaitos) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 01515-1020 BUP 26 AB (Baten Kaitos) : MEASURES

No records found.

WDS 01515-1020 (Baten Kaitos) : VIRTUAL EYEPIECE

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

WDS 01515-1020 (Baten Kaitos) : ALADIN DSS IMAGE @ 01^h 51^m 27.61^s -10° 20' 05.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 01515-1020 BUP 26 AB (Baten Kaitos) : 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	pa	sep	dist(')
Show	Baten Kaitos	01515-1020	BNU 1	Aa,Ab	172	0.1	1
Show	Baten Kaitos	01515-1020	BUP 26	AB	40	188.6	1
Show		01529-1033	LDS 58		203	25.8	25
Show		01518-0955	HU 12		330	1.3	26
Show		01497-1022	BU 1168		209	0.3	26
Show		01496-1041	ENG 8		250	184.1	35
Show		01513-0943	SLW 88		183	42.8	38
Show		01494-1042	AMM 1	AB	354	6.1	38
Show		01494-1042	AMM 1	AC	303	14.8	38
Show		01523-0944	BU 259		239	4.8	39
Show		01517-0939	LDS2223		212	5.2	42
Show		01486-1023	BRT3191		340	4.4	43
Show		01486-0955	JNN 17		154	0.5	50
Show		01487-1046	HDO 52		32	18.4	52
Show		01507-0927	NSN 61		255	1.1	55
Show		01514-1124	GWP 230		285	82.1	65
Show		01511-1125	GWP 229		76	81.4	66
Show		01482-0929	RST4186		47	0.9	70
Show		01572-1015	GAL 315		134	29.7	85
Show		01567-1058	GWP 240		359	11.6	86
Show		01523-1148	RST3364		214	2.2	89
Show		01575-0943	CVR 406		61	8.6	97
Show		01454-1104	LDS2221		260	43.4	101
Show		01497-0842	KPP2687		168	2.2	102
Show		01549-0843	SLW 91		162	18.2	110
Show		01462-1137	RST3363		244	1.0	110
Show		01466-0858	SLW 83		220	90.3	110
Show		01435-1038	GAL 313		193	33.3	115
Show		01588-0949	J 1449		329	8.4	115
Show		01521-1215	UC 638		254	17.2	116
Show		01551-1204	LDS9128		177	2.4	117
Show		01585-1122	YSC 142		89	0.0	122
Show		01492-0822	LDS5353		95	166.5	122
Show		01466-0839	JOD 3		0	0.1	124
Show		01530-1222	RST4189		17	1.1	125
Show		01447-1139	HU 11		193	3.5	128
Show		01434-1127	GAL 312		326	43.5	134
Show		01579-1158	HU 13		114	1.0	137
Show		01561-0815	KPP2358		278	20.2	143
Show		01518-0750	HJ 2092		78	13.5	150
Show		01457-0814	LDS5349		321	185.5	152
Show		01470-0804	SLW 84		90	21.5	152
Show		01463-0807	RST4184		292	1.8	154
Show		01417-1119	STF 147		44	0.1	155
Show		01477-1246	SKF 420		237	3.8	157
Show		01419-0907	GRV1170		47	8.3	159
Show		01475-0753	HDS 240		163	0.1	159
Show		01532-0743	TDS2039		207	2.8	160
Show		01523-1258	LDS2224		176	4.5	160
Show		01576-1234	KPP2028	AB	143	16.2	162
Show		01576-1234	KPP2028	Aa,Ab	72	0.0	162

WDS 01515-1020 : COMPONENTS

	A	Ab
Ab	pa=172.0° sep=0.05"
B	pa=40.1° sep=188.61"	pa=40.1° sep=188.65"

01515-1020 A

Common name	Baten Kaitos	Coord arcsec 2000	015127.61-102005.8	Mag	3.85	Spectral class	K0III (yellow-orange)
PmRA	41.00	PmDE	-37.0	HIP	8645	Tycho2	5278-02437-1
HD	11353	HR	539	GC	2249	BD	BD-11 359
Bayer	Zeta Ceti	Bayer name	Zet Cet	Flamsteed	55 Ceti	Flamsteed name	55 Cet
FK5	62

Tycho2

Tycho2	5278-02437-1	Pflag		RAmdeg	27.86513636	DEmdeg	-10.33504177
PmRA	37.6	PmDE	-40.6	E RAmdeg	3	E DEmdeg	3
E pmRA	0.4	E pmDE	0.4	EpRAm	1990.73	EpDEm	1990.73
Num	24	Q RAmdeg	0.7	Q DEmdeg	1.7	Q pmRA	0.8
Q pmDE	1.8	BTmag	5.187	E BTmag	0.014	VTmag	3.851
E VTmag	0.009	Prox	999	TYC	T	HIP	8645
CCDM		RAdeg	27.86504722	DEdeg	-10.33494611	EpRA 1990	1.59
EpDE 1990	1.51	E RAdeg	3.3	E DEdeg	3.4	Posflg
Corr	-0.2

Hipparcos

Catalog	H	HIP	8645	Proxy		RAhms	01 51 27.61
DEdms	-10 20 05.8	Vmag	3.74	VarFlag		R Vmag	H
RAdeg	27.865	DEdeg	-10.3349	AstroRef		Plx	12.59
CCDM	38.78	N CCDM	I	Nsys	1	Ncomp	1
MultFlag	G	Source		Qual		M HIP
Theta		Rho		HD		BD	BD-11 359
CD		CP		Dm number	-11 359	VIred	1.07
SpType	K2III	R SpType		Coord arcsec 2000	015127.61-102005.8

Hipparcos 2

HIP	8645	Sn	1	So	1	Nc	1
RArad	0.4863367693	DErad	-0.1803788229	Plx	13.88	PmRA	40.8
PmDE	-37.25	E RArad	0.44	E DErad	0.37	E Plx	0.57
E pmRA	0.57	E pmDE	0.5	Hpmag		E Hpmag	0.0006
SHp	0.004	VA	0	BV	1.136	E BV	0.007
VI	1.07

01515-1020 Ab

Coord arcsec 2000

015127.61-102005.9

Delta magnitude

3.73

Coordinate calculated

yes

01515-1020 B

Coord arcsec 2000	015135.84-101741.5		Mag	10.15		PmRA	40.00		PmDE	-9.0
SAO	148062		DM	BD-17 330		Delta magnitude	6.42		Coordinate calculated	yes

SAO

SAO	148062	DelFlag		RA1950		PmRA1950	0.0051
DE1950		PmDE1950	-0.06	Vmag	8.6	SpType	F5
Double code		Source	21	CatNum	467	DM	BD-17 330
DMcomp		BDsup		HD	11377	M HD	0
GC		RA1950rad	0.47588798	DE1950rad	-0.29646233	PmRA2000	0.0054
PmDE2000	-0.063