CETUS

CETUS

(Abbreviation: Cet).

One of the largest of all the constellations; sometimes associated with the sea-monster of the Perseus legend, at others relegated to the status of a harmless whale. It contains the prototype long period variable Mira, which can occasionally rise to a magnitude 1.7, but which spends most of its period below naked-eye visibility. Cetus abounds in faint galaxies. Excluding Mira, there are 8 stars above the fourth magnitude.

BRIGHTEST STARS

STAR	R.A.			DEC			MAG.	ABS.MAG.	SPEC	DIST. PC
STAR	H	M	S	o	,	“	MAG.	ABS.MAG.	SPEC	DIST. PC
2	00	03	44.3	-17	20	10	4.55	-0.3	B9	91
7	00	14	38.4	-18	55	58	4.44	-0.5	gM1	86
8 i	00	19	25.6	-08	49	26	3.56	-0.1	K2	50 BATEN KAITOS SHEMALI
16 b	00	43	35.3	-17	59	12	2.04	0.2	KO	21 DIPHDA
17 f¹	00	44	11.3	-10	36	34	4.75	0.2	KO	81
31 h	01	08	35.3	-10	10	56	3.45	-0.1	K2	36
45 q	01	24	01.3	-08	11	01	3.60	0.2	KO	35
53 c	01	49	35.0	-10	41	11	4.67	1.9	F2	30
52 t	01	44	04.0	-15	56	15	3.50	5.7	G8	3.6
55 z	01	51	27.6	-10	20	06	3.73	-0.1	K2	58 BATEN KAITOS
59 n	02	00	00.2	-21	04	40	4.00	-0.5	M1	79
65 x¹	02	12	59.9	+08	50	48	4.37	-2.1	G8	200
68 o	02	19	20.6	-02	58	39	var.	-0.5v	Md	29 MIRA
73 x²	02	28	09.5	+08	27	36	4.28	-0.8	B9	98
76 s	02	32	05.1	-15	14	41	4.75	2.1	F5	33
82 d	02	39	28.9	+00	19	43	4.07	-3.0	B2	260
86 g	02	43	18.0	+03	14	09	3.47	1.4	A2	23 ALKAFFALJIDHINA
89 p	02	44	07.3	-13	51	32	4.25	-0.6	B7	93
87 m	02	44	56.4	+10	06	51	4.27	1.7	F0	30
91 l	02	59	42.8	+08	54	27	4.70	-2.2	B5	220
92 a	03	02	16.7	+04	05	23	2.53	-0.5	M2	40 MANKAR

DOUBLES

STAR	R.A.		DEC		MAGS.	P.A.	DIST.”
STAR	H	M	o	‘	MAGS.	P.A.	DIST.”
37	01	11.9	-08	11	5.2, 7.8	331	49.6 FIXED
66	02	12.8	-02	24	5.7, 7.7	232	16.3 NEAR MIRA
o	02	19.3	-02	59	var., 10.0	131	0.8 BINARY
g	02	43.3	+03	14	3.7, 6.4	293	3.0 SLOW BINARY

VARIABLES

STAR	R.A.		DEC		RANGE	PERIOD,D.	SPEC	TYPE
STAR	H	M	o	‘	RANGE	PERIOD,D.	SPEC	TYPE
W	23	59.6	-14	58	7.1---14.6	351	S	MIRA
S	00	21.5	-09	36	7.6---14.7	320	M	MIRA
UV	01	36.4	-18	13	6.8---12.9	-	dM	FLARE STAR
o	02	19.3	-02	59	1.7---10.1	331	M	PROTOTYPE MIRA
R	02	23.6	-00	24	7.2---14.0	166	M	MIRA
U	02	31.3	-13	22	6.8---13.4	235	M	MIRA

CLUSTERS AND NEBULÆ

OBJECT	R.A.		DEC		TYPE	NOTES
OBJECT	H	M	o	‘	TYPE	NOTES
NGC 45	00	11.4	-23	27	SPIRAL GALAXY	MAG. 12
NGC 210	00	38.0	-14	09	SPIRAL GALAXY	MAG. 12. TYPE Sb
NGC 246	00	44.6	-12	09	PLANETARY	MAG. 8.5. OVAL. CENTRAL STAR MAG.11
NGC 247	00	44.6	-21	01	SPIRAL GALAXY	MAG. 9.5
NGC 428	01	10.4	+00	43	SPIRAL GALAXY	MAG. 11.7. TYPE Sc
NGC 578	01	28.0	-22	56	SPIRAL GALAXY	MAG. 11.4. TYPE Sc
NGC 584	01	28.8	-07	07	ELLIPTICAL GALAXY	MAG. 11.4. TYPE E4
NGC 779	01	57.2	-06	12	BARRED SPIRAL GALAXY	MAG. 11.3
NGC 908	02	20.8	-21	27	SPIRAL GALAXY	MAG. 11.5. TYPE Sc
NGC 936	02	25.1	-01	22	BARRED SPIRAL GALAXY	MAG. 11.2. TYPE SBa
NGC 1052	02	38.6	-08	28	ELLIPTICAL GALAXY	MAG. 11.2. TYPE E2
NGC 1068 M.77	02	40.1	-00	14	SEYFERT GALAXY	MAG. 8.9. RADIO SOURCE
NGC 1073	02	41.2	+01	10	BARRED SPIRAL GALAXY	MAG. 11.4. TYPE SBc
NGC 1087	02	43.9	-42	42	SPIRAL GALAXY	MAG. 11.4. TYPE Sc