DELPHINUS
(Abbreviation:
Del).
A small but compact constellation; one of Ptolemy’s originals. It honours the dolphin, which carried the great singer Arion to safety, after he had been thrown overboard by the crew of the ship carrying him home after winning all the prizes in a competition. The curious name of a andb were allotted by one Nicolaus Venator, for reasons which are obvious! There are 3 stars above the fourth magnitude.
BRIGHTEST
STARS
|
STAR |
R.A.
|
DEC |
MAG. |
ABS.MAG. |
SPEC |
DIST.PC | ||||
|
H |
M |
S |
o |
‘ |
“ | |||||
|
2 Î
|
20 |
33 |
12.6 |
+11 |
18 |
12 |
4.03 |
-1.9 |
B6 |
150 |
|
4 z |
20 |
35 |
18.4 |
+14 |
40 |
27 |
4.68 |
1.7 |
A3 |
38 |
|
6 b |
20 |
37 |
32.8 |
+14 |
35 |
43 |
3.54 |
0.7 |
F5 |
33
ROTANEV |
|
9 a |
20 |
39 |
38.1 |
+15 |
54 |
43 |
3.77 |
0.2 |
B9 |
52
SVALOCIN |
|
11 d |
20 |
43 |
27.3 |
+15 |
04 |
28 |
4.43 |
0.5 |
A7 |
56 |
|
12 g |
20 |
46 |
39.3 |
+16 |
07 |
27 |
3.9 |
3.2 |
G5 |
23 |
DOUBLE
|
STAR |
R.A. |
DEC |
MAGS. |
P.A. |
DIST | ||||
|
H |
M |
S |
o |
‘ |
“ | ||||
|
12 g |
20 |
46 |
38.6 |
+16 |
07 |
27 |
5.22 |
269 |
10.4 FIXED. LOVELY
PAIR |
|
39.3 |
4.27 | ||||||||
VARIABLES
|
STAR |
R.A. |
DEC |
RANGE |
PEROID,D. |
SPEC |
TYPE | ||
|
H |
M |
o |
‘ | |||||
|
R |
20 |
12.5 |
+08 |
56 |
7.6---13.7 |
285 |
M |
MIRA |
|
EU |
20 |
35.6 |
+18 |
06 |
6.0---6.9 |
±60 |
M |
SEMI-REGULAR |
|
HR |
20 |
40.0 |
+18 |
59 |
3.7---12.8 |
- |
Q |
NOVA |
|
S |
20 |
40.8 |
+16 |
54 |
8.3---13.2 |
277 |
M |
MIRA |
|
U |
20 |
43.2 |
+17 |
54 |
5.6---7.5 |
- |
M |
IRREGULAR |
|
V |
20 |
45.5 |
+19 |
09 |
8.1---15.5 |
534 |
M |
MIRA |
The exceptional slow nova hr
delphimi (1967) is included here because its preoutburst magnitude was little
below 12, and it is unlikely to decline much further.
CLUSTERS AND NEBULÆ
|
OBJECT |
R.A. |
DEC |
TYPE |
NOTES | ||
|
H |
M |
O |
‘ | |||
|
NGC
6905 |
20 |
20.2 |
+19 |
57 |
PLANETARY |
MAG.12; CENTER STAR
MAG.14 |
|
NGC
7006 |
20 |
59.1 |
+16 |
00 |
GLOBULAR |
MAG.10 |
