CAPRICORNUS

CAPRICORNUS

(Abbreviation: Cap).

A Zodiacal constellation, though by no means brilliant. It has been identified with the demigod Pan, but there seems to be no well-defined mythological associations. There are five stars above magnitude 4:

STAR	R.A.			DEC			MAG.	ABS.MAG.	SPEC	DIST.PC
STAR	H	M	S	o	‘	“	MAG.	ABS.MAG.	SPEC	DIST.PC
5 a¹	20	17	38.6	-12	30	30	4.25	-4.5	G3	490	AL GIEDI
6 a²	20	18	03.1	-12	32	42	3.57	0.2	G9	36	AL GIEDI
9 b	20	21	00.5	-14	46	53	3.08	4.0	F8	32 DABIH
16 y	20	46	05.5	-25	16	16	4.14	3.4	F5	12
18 w	20	51	49.1	-26	55	09	4.11	-0.3	K5	64
23 q	21	05	56.6	-17	13	58	4.07	0.6	AO	49
24 A	21	07	07.5	-25	00	21	4.50	-0.5	M1	95
32 t	21	22	14.6	-16	50	05	4.28	0.3	G8	63
34 z	21	26	39.9	-22	24	41	3.74	-4.5	G4	450
36 b	21	28	43.2	-21	48	26	4.51	0.3	gG5	67
39 e	21	37	04.7	-19	27	58	4.68	-2.3	B3	250
40 g	21	40	05.2	-16	3	45	3.68	1.2	FOp	18 NASHIRA
43 k	21	42	39.3	-18	51	59	4.73	0.3	G8	77
49 d	21	47	02.3	-16	07	38	2.87v	2.0	A5	15 DENEB AL GIADI

a¹ and a² make up a naked-eye pair, separated by 376” (position angle 291º), but the two components are not genuinely associated, and each is itself double; the fainter component og a² is also double!

DOUBLES

STAR	R.A.		DEC		MAGS.	P.A.	DIST.
STAR	H	M	o	‘	MAGS.	P.A.	DIST.
a¹	20	16.4	-12	35	4.5,9.0	221	45.5 OPTICAL
a²	20	16.8	-12	37	3.7,10.6	158	7.1 B IS AGAIN DOUBLE; 1”.2

VARIABLES

STAR	R.A.		DEC		RANGE	PERIOD,D.	SPEC	TYPE
STAR	H	M	o	‘	RANGE	PERIOD,D.	SPEC	TYPE
RS	21	04.5	-16	37	7.0---9.0	340	M	SEMI-REGULAR
RT	20	14.1	-21	29	6.5---8.1	395	N	SEMI-REGULAR
RR	20	59.4	-27	17	7.8---14.6	277	M	MIRA

.CLUSTERS AND NEBULÆ

OBJECT	R.A.		DEC		TYPE	NOTES
OBJECT	H	M	o	‘	TYPE	NOTES
NGC. 6907	20	22.1	-24	58	SPIRAL GALAXY	MAG. 12. TYPE SBb
NGC. 7099 M.30	21	37.5	-23	25	GLOBULAR CLUSTER	MAG. 8.4