BOÖTES

BOÖTES

(Abbreviation: Boö).

An original constellation dominated by Arcturus. There are various myths attached to it, but none is very definite. According to one version, Boötes was a herdsman who invented the plough drawn by the two oxen, for which service he was transferred to the sky. There are 8 stars above magnitude 4:

BRIGHTEST STARS

STAR	R.A.			DEC			MAG.	ABS.MAG.	SPEC	DIST. PC
STAR	H	M	S	o	‘	“	MAG.	ABS.MAG.	SPEC	DIST. PC
4 t	13	47	15.6	+17	27	24	4.50	3.8	F7	16
5 u	13	49	28.6	+15	47	52	4.06	-0.3	K5	72
8 h	13	54	41.0	+18	23	51	2.68	2.7	GO	9.8
17 k	14	13	27.6	+51	47	15	4.40	1.5	A7	38
16 a	14	15	39.6	+19	10	57	-0.04	-0.2	K2	11 ARCTURUS
21 i	14	16	09.8	+51	22	02	4.75	2.4	A7	28
19 l	14	16	22.9	+46	05	18	4.18	1.8	AOp	29
23 q	14	25	11.7	+51	51	02	4.05	3.8	F7	13
25 r	14	31	49.7	+30	22	17	3.58	-0.2	K3	56
27 g	14	32	04.6	+38	13	30	3.03	0.5	A7	32 SEGINUS
28 s	14	34	40.7	+29	44	42	4.46	3.0	F2	17
30 z	14	41	08.8	+13	43	42	3.78	-0.2	A2	63
36 e	14	44	59.1	+27	04	27	2.37	-0.9	KO	46 IZAR
35 o	14	45	14.4	+16	57	51	4.60	0.2	KO	29
37 x	14	51	23.2	+19	06	04	4.55	5.5	G8	6.8
42 b	15	01	56.6	+40	23	26	3.50	0.3	G8	42 NEKKAR
43 y	15	04	26.6	+26	56	51	4.54	-0.1	K2	75
49 d	15	15	30.1	+33	18	53	3.47	0.3	G8	43
51 m¹	15	24	29.3	+39	22	38	4.31	2.6	FO	18 ALKALUROPS

DOUBLES

STAR	R.A.			DEC			MAGS.	P.A.	DIST.”
STAR	H	M	S	o	‘	“	MAGS.	P.A.	DIST.”
17 k	14	13	27.6	+51	47	15	4.6, 6.6	236	13.2 FIXED
21 i	14	16	09.8	+51	22	02	4.8. 8.3	033	38.4 FIXED
29 p	14	40	43.5	+16	25	05	4.9, 5.8	108	5.6 P.A. INCREASING
30 z	14	41	08.8	+13	43	42	4.6, 4.6	313	1.2 BINARY; 130 YEARS
36 e	14	44	59.1	+27	04	27	2.7, 5.1	338	2.9 YELLOWISH, BLUISH
37 x	14	51	23.2	+19	06	04	4.8, 6.9	350	6.7 BINARY; 152 YEARS
51 m	15	24	29.3	+39	22	38	4.5, 6.7	171	108.8 FIXED. m² IS DOUBLE (2”)

VARIABLE

STAR	R.A.		DEC		RANGE	PERIOD, D	SPEC	TYPE
STAR	H	M	o	‘	RANGE	PERIOD, D	SPEC	TYPE
S	14	21.2	+54	02	8.0---13.8	271	M	MIRA
V	14	27.7	+39	05	7.0---11.3	258	M	SEMI-REGULAR
R	14	35.0	+26	57	6.7---12.8	223	M	MIRA

CLUSTERS AND NEBULÆ

OBJECT	R.A.		DEC		TYPE	NOTES
OBJECT	H	M	o	‘	TYPE	NOTES
NGC 2548	13	35.1	+09	08	SPIRAL GALAXY	MAG. 11.3 LOOSE (Sc)
NGA 5466	14	03.2	+28	46	GLOBULAR CLUSTER	MAG. 8.5
NGC 5557	14	16.4	+36	43	ELLIPICAL GALAXY	MAG. 11.6
NGC 5676	14	31.0	+49	41	SPIRAL GALAXY	MAG. 11.2 LOOSE (Sc)
NGC 5689	14	33.7	+48	57	SPIRAL GALAXY	MAG. 11.4