COMA BERENICES
At first glance, this constellation gives the impression of
being vast, dim cluster. This is not
case; Coma has no star above magnitude 4.3, but it abounds in faint ones, and
there are many telescope galaxies.
Though the constellation is not ‘original’, there is a legend attached
to it. When Ptolemy Euergetes,
King of Egypt, set out in an expedition against the Assyrians, his wife Berenice vowed that if he returned safely she would cut of
her lovely hair and place it in the
(Abbreviation: Com.)
BRIGHTEST STARS
|
STAR |
MAG. |
ABS. MAG |
SPEC |
DIST. PC |
||||||
|
15 g |
12 |
26 |
56.2 |
+28 |
16 |
06 |
4.35 |
-0.2 |
K1 |
31 |
|
42 a |
13 |
09 |
59.2 |
+17 |
31 |
45 |
4.32 |
3.4 |
F5 |
18 DIADEM |
|
43 b |
13 |
11 |
52.3 |
+27 |
52 |
41 |
4.26 |
4.7 |
G0 |
8.3 |
a Is a very close binary, with a period of 26 years; the separation is never more then 0”.3. The components are approximately equal.
VARIABLES
|
STAR |
R.A |
DEC |
RANGE |
PERIOD, D. |
SPEC |
TYPE |
||
|
H |
M |
° |
‘ |
|||||
|
R |
12 |
01.7 |
+19 |
04 |
7.3 – 14.6 |
362 |
M |
MIRA |
CLUSTERS AND NEBULÆ
|
OBJECT |
R.A |
DEC |
TYPE |
NOTES |
||
|
H |
M |
° |
‘ |
|||
|
NGC
4192 M.98 |
12 |
11.3 |
+15 |
11 |
GALAXY |
MAG. 10.7. TYPE SB |
|
NGC
4212 |
12 |
13.1 |
+14 |
11 |
GALAXY |
MAG. 12. TYPE Sc |
|
NGC
4251 |
12 |
15.7 |
+28 |
27 |
GALAXY |
MAG. 10.2. TYPE Sa |
|
NGC
4254 M.99 |
12 |
16.3 |
+14 |
42 |
GALAXY |
MAG. 10. TYPE Sc |
|
NGC
4274 |
12 |
17.4 |
+29 |
53 |
GALAXY |
MAG. 11. TYPE Sb |
|
NGC
4278 |
12 |
17.7 |
+29 |
34 |
GALAXY |
MAG. 10. TYPE E1 |
|
NGC
4321 M.100 |
12 |
20.4 |
+16 |
06 |
GALAXY |
MAG. 10.6. TYPE Sc |
|
NGC
4350 |
12 |
21.4 |
+16 |
58 |
GALAXY |
MAG. 12. TYPE E7 |
|
NGC
4382 M.85 |
12 |
22.8 |
+18 |
28 |
GALAXY |
MAG. 9. TYPE Ep |
|
NGC
4394 |
12 |
23.4 |
+18 |
29 |
GALAXY |
MAG. 11. TYPE SBb |
|
NGC
4414 |
12 |
24.0 |
+31 |
30 |
GALAXY |
MAG. 10. TYPE Sc |
|
NGC
4448 |
12 |
25.8 |
+28 |
54 |
GALAXY |
MAG. 11.4. TYPE Sb |
|
NGC
4459 |
12 |
26.5 |
+14 |
15 |
GALAXY |
MAG. 11. TYPE E2 |
|
NGC
4494 |
12 |
28.9 |
+26 |
03 |
GALAXY |
MAG. 10. TYPE E1 |
|
NGC
4501 M.88 |
12 |
29.5 |
+14 |
42 |
GALAXY |
MAG. 10. TYPE Sb |
|
NGC
4548 |
12 |
32.9 |
+14 |
46 |
GALAXY |
MAG. 11. TYPE SBb |
|
NGC
4559 |
12 |
33.5 |
+28 |
14 |
GALAXY |
MAG. 11. TYPE Sc |
|
NGC
4565 H.V.24 |
12 |
33.9 |
+26 |
16 |
GALAXY |
MAG. 10. TYPE Sb |
|
NGC
4571 M.91? |
12 |
34.3 |
+14 |
28 |
GALAXY |
MAG. 12. IDENTIFICATION UNCERTAIN |
|
NGC
4689 |
12 |
45.2 |
+14 |
01 |
GALAXY |
MAG. 11.5. TYPE Sb |
|
NGC
4793 |
12 |
52.3 |
+29 |
13 |
GALAXY |
MAG. 12. TYPE Sc |
|
NGC
4826 M.64 |
12 |
54.3 |
+21 |
57 |
GALAXY |
MAG. 9. TYPE Sb.
‘BLACK-EYE GALAXY’ |
|
NGC
5012 |
13 |
09.3 |
+23 |
11 |
GALAXY |
MAG. 11. TYPE Sb |
|
NGC
5024 M.53 |
13 |
10.5 |
+18 |
26 |
GLOBULAR |
MAG.
7.6 |
|
NGC
5053 |
13 |
13.9 |
+11 |
57 |
GLOBULAR |
MAG.
10.5 |
M.91 IS ONE OF THE ‘MISSING’ MESSIER OBJECTS. IT MAY HAVE BEEN A PASSING COMET,BUT THERE IS AT LEAST A CHANCE THAT IT IS IDENTICAL WITH NGC 4571.
