DRACO
(Abbreviation:
Dra).
A long, sprawling northern constellation. In mythology it has been identified
either with the dragon killed by Cadmus before the founing of the dragon which
Bœotia, or with the dragon which guarded the golden apples in the Garden of the
Hesperides. Thuban (a) was the pole star in ancient times. There are 12 stars
above the fourth magnitude:
BRIGHTEST
STARS
|
STAR |
R.A. |
DEC |
MAG. |
ABS.MAG. |
SPEC |
DIST,PC. | ||||
|
H |
M |
S |
o |
‘ |
“ | |||||
|
HD
81817 |
09 |
37 |
05.2 |
+81 |
19 |
35 |
4.29 |
-0.2 |
K3 |
57 |
|
1 l
|
11 |
31 |
24.2 |
+69 |
19 |
52 |
3.84 |
-0.4 |
MO |
65
GIANSAR |
|
5 k |
12 |
33 |
28.9 |
+69 |
47 |
17 |
3.87 |
0.2 |
B7 |
22 |
|
10 ¡ |
13 |
51 |
25.8 |
+64 |
43 |
33 |
4.66 |
-0.5 |
gM3 |
110 |
|
11 a |
14 |
04 |
23.2 |
+64 |
22 |
33 |
3.65 |
-0.6 |
AO |
71 THUBAN |
|
12 i |
15 |
24 |
55.6 |
+58 |
57 |
58 |
3.29 |
-0.1 |
K2 |
48
EDASICH |
|
13 q |
16 |
01 |
53.2 |
+58 |
33 |
55 |
4.01 |
3.2 |
F8 |
16 |
|
14 h |
16 |
23 |
59.3 |
+61 |
30 |
50 |
2.74 |
0.3 |
G8 |
25
ALDHIBAIN |
|
22 z |
17 |
08 |
47.0 |
+65 |
42 |
53 |
3.17 |
-1.9 |
B6 |
97
ALDHIBAH |
|
23 b |
17 |
30 |
25.8 |
+52 |
18 |
05 |
2.79 |
-2.1 |
G2 |
82 ALWAID |
|
31 y |
17 |
41 |
56.1 |
+72 |
08 |
56 |
4.85 |
2.8 |
F5 |
23 DZIBAN |
|
57.7 |
09 |
24 |
5.79 |
4.0 |
FO | |||||
|
32 x |
17 |
53 |
31.5 |
+56 |
52 |
21 |
3.75 |
-0.1 |
K2 |
58 JUZA |
|
33 g |
17 |
56 |
36.2 |
+51 |
29 |
20 |
2.23 |
-0.3 |
K5 |
31 ELTAMIN LY/
100 |
|
43 f |
18 |
20 |
45.2 |
+71 |
20 |
16 |
4.22 |
-0.6 |
AOp |
33 |
|
44 c |
18 |
21 |
03.0 |
+72 |
43 |
58 |
3.57 |
4.1 |
F7 |
7.8 |
|
47 o |
18 |
51 |
12.0 |
+59 |
23 |
18 |
4.66 |
-0.9 |
KO |
67 |
|
57 d |
19 |
12 |
33.1 |
+67 |
39 |
41 |
3.07 |
0.2 |
G9 |
36 TAÏ S |
|
60 t |
19 |
15 |
32.8 |
+73 |
21 |
20 |
4.45 |
-0.2 |
K3 |
70 |
|
58 p |
19 |
20 |
39.9 |
+65 |
42 |
52 |
4.59 |
0.6 |
A2 |
63 |
|
61 s |
19 |
32 |
21.5 |
+69 |
39 |
40 |
4.68 |
5.9 |
KO |
5.7
ALRAKIS |
|
63 Î |
19 |
48 |
10.2 |
+70 |
16 |
04 |
3.83 |
0.3 |
G8 |
51 TYL |
|
67 r
|
20 |
02 |
48.9 |
+67 |
52 |
25 |
4.51 |
-0.2 |
K3 |
82 |
DOUBLES
|
STAR |
R.A. |
DEC |
MAGS. |
P.A. |
DIST.” | ||||
|
H |
M |
S |
o |
‘ |
“ | ||||
|
14
h |
16 |
23 |
59.3 |
+61 |
30 |
50 |
2.7,8.8 |
142 |
6.1 FIXED |
|
21 m |
17 |
05 |
19.5 |
+54 |
28 |
13 |
5.8,5.8 |
081 |
2.2
WIDENING |
|
24/5 n |
17 |
32 |
10.3 |
+55 |
11 |
03 |
4.9,4.9 |
312 |
62.0 WIDE PHYSICAL PAIR |
|
31 y |
17 |
14 |
56.1 |
+72 |
08 |
56 |
4.6,5.8 |
016 |
30.3 FIXED |
|
63 Î |
19 |
48 |
10.2 |
+70 |
16 |
04 |
3.8,7.1 |
012 |
3.3 SLOW
BINARY |
VARIABLES
|
STAR |
R.A. |
DEC |
RANGE |
PERIOD,D. |
SPEC |
TYPE | ||
|
H |
M |
o |
‘ | |||||
|
TW |
15 |
33.1 |
+64 |
04 |
7.7---10.0 |
2.8 |
A+K |
ALGOL |
|
T |
17 |
55.7 |
+58 |
14 |
7.2---13.5 |
422 |
N |
MIRA |
|
R |
16 |
32.5 |
+66 |
51 |
6.9---13.0 |
246 |
M |
MIRA |
|
S |
16 |
41.9 |
+55 |
00 |
8.2---9.4 |
136 |
M |
SEMI-REGULAR |
CLUSTERS AND
NEBULÆ
|
OBJECT |
R.A. |
DEC |
TYPE |
NOTES | ||
|
H |
M |
o |
‘ | |||
|
NGC 4125 |
12 |
05.7 |
+65 |
27 |
GALAXY |
MAG.10.TYPE
E5 |
|
NGC 5907 |
15 |
14.6 |
+56 |
31 |
GALAXY |
MAG.11. TYPE
Sb |
|
NGC 5985 |
15 |
38.6 |
+59 |
30 |
GALAXY |
MAG.11.4. TYPE
Sb |
|
NGC 6503 |
17 |
49.9 |
+70 |
10 |
GALAXY |
MAG.9.6. TYPE
Sb |
|
NGC 6543 H.IV.37 |
17 |
58.6 |
+66 |
38 |
PLANETARY |
MAG.9. CENTER STAR
MAG.9.6 |
|
NGC 6643 |
18 |
21.2 |
+74 |
33 |
GALAXY |
MAG.11.3. TYPE
Sc |
