ANDROMEDA

(Abbreviation: And)

A large and important northern constellation; one of Ptolemy, s ‘originals’. It contains the Great spiral , M31. One of leading stars in the constellation – Alpherats or a Andromedæ - is actually a member of the square of Pegasus, and was formally known, more logically, as d Pegasi.

In mythology, Andromeda was the beautiful daughter of King Cepheus and Queen Cassiopeia. Cassiopeia offended the sea-god Neptune by her boasting about Andromed’s beauty, which, she claimed, was greater than that of any sea-nymph. Neptune there upon sent the sea-monster to ravage the kingdom, and the Oracle stated that the only solution was to chain Andromeda to a rock by the shore where she would be devoured by the monster. This was duly done, but the situation was redeemed by the hero Perseus, who was on his way home after killing the Gorgon, Medusa. Mounted upon his winged sandals, Perseus arrived in the nick of time, turned the monster to stone by the simple expedient of showing it Medusa’s head, and then, in the best storybook tradition, married Andromeda. Cepheus, Cassiopeia and of course Perseus are to found in the sky; the Gorgon, s head is marked by the ‘Demon Star’ Algol, and the sea-monster has sometimes been identified with the constellation Cetus.

BRIGHTEST STARS

STAR	R.A.			DEC			MAG	ABS.MAG.	SPEC	DIST.PC
STAR	H	M	S	o	‘	“	MAG	ABS.MAG.	SPEC	DIST.PC
1 o	23	01	55.1	+42	19	34	3.6v	1.4	B6+A2	35
7	23	12	32.9	+49	24	33	4.52	2.6	FO	23
16 l	23	37	33.7	+46	27	30	3.82v	1.8	G8	24
17 i	23	38	08.0	+43	16	05	4.29	-0.2	B8	79
19 k	23	40	24.4	+44	20	02	4.14	-0.2	B8	60
21 a	00	08	23.2	+29	05	26	2.06	-0.1	AOp	22 ALPHERATZ
24 q	00	17	05.4	+38	40	54	4.61	1.4	A2	44
25 s	00	18	19.6	+36	47	07	4.52	1.4	A2	42
29 p	00	36	52.8	+33	43	09	4.36	-1.1	B5	120
30 e	00	38	33.3	+29	18	42	4.37	0.3	G8	41
31 d	00	39	19.6	+30	51	40	3.27	-0.2	K3	49
34 x	00	47	20.3	+24	16	02	4.06v	-2.2	K1	48
35 n	00	49	48.8	+41	04	44	4.53	-1.1	B5	130
37 m	00	56	45.1	+38	29	58	3.87	2.1	A5	25
38 h	00	57	12.4	+23	25	04	4.42	1.8	G8	35
42 f	01	09	30.1	+47	14	31	4.25	-1.2	B8	120
43 b	01	09	43.8	+35	37	14	2.06	-0.4	MO	27 MIRACH
50 u	01	36	47.8	+41	24	20	4.09	4.0	F8	13
51	01	37	59.5	+48	37	42	3.57	-0.2	K3	57
57 g	02	03	53.9	+42	19	47	2.18	-0.1	K2	37 ALMAAK
57 g	02	03	54.7	+42	19	51	5.03	-0.1	AO	37 ALMAAK
65	02	25	37.3	+50	16	43	4.71	-0.3	K4	82

DOUBLES

STAR	R.A.			DEC			MAGS.	P.A.	DIST.”
STAR	H	M	S	o	‘	“	MAGS.	P.A.	DIST.”
29 p	00	36	52.8	+33	43	09	4.4,8.7	174	36.1 FIXED
57 g	02	03	53.9	+42	19	47	2.2,5.0	063	10.0 ORANGE, BLUE.
g²	02	03	54.7	+42	19	51	5.5,6.3	BINARY, 61Y; MAX.SEP.0”.6

VARIABLES

STAR	R.A.		DEC		RANGE	PERIOD, D.	SPEC	TYPE
STAR	H	M	o	‘	RANGE	PERIOD, D.	SPEC	TYPE
SV	00	01.8	+39	49	7.7-14.3	316	M	MIRA
T	00	19.8	+26	43	7.7-14.3	280	M	MIRA
R	00	21.4	+38	18	5.9-14.9	4.09	S	MIRA
W	02	14.3	+44	04	6.7-14.5	397	M	MIRA
RW	00	44.6	+32	24	7.9-15.4	429	M	MIRA

CLUSTERS AND NEBULÆ

OBJECT	R.A.		DEC		TYPE	NOTES
OBJECT	H	M	o	‘	TYPE	NOTES
NGC 7662 H.IV.18	23	23.4	+42	12	PLANETARY	STARLIKE; MAGNITUDE 14
I 7662	23	23.5	+42	14	PLANETARY	MAG.8.9; CENTRAL STAR MAG. 12.5
NGC 7686	23	27.8	+48	51	OPEN CLUSTER	MAG.8.0
NGC 205	00	37.6	+41	25	GALAXY	MAG.9. TYPE E6 COMPANION TO M.31
NGC 224 M.31	00	40.0	+41	00	GALAXY	GREAT SPIRAL (TYPE sb). NAKED- EYE
NGC 221 M.32	00	40.0	+40	36	GALAXY	MAG.8.7. TYPE E2 COMPANION TO M31
NGC 752	01	54.7	+37	25	OPEN CLUSTER	MAG 7.0. ABOUT 70 STARS