Capricornus (abbr. Cap, gen. Capricorni)
The Sea Goat; an extensive but dull southern constellation
and the tenth sign of the zodiac. It lies to the north of Microscopium
and Pisces Austrinus, to the west and south
of Aquarius, and to the southeast of Aquila.
In ancient times the Sun was in Capricorn at the winter solstice
but, because of precession, is now in neighboring Sagittarius at this time
of the year. The latitude on Earth on which Capricorn appears overhead of
an observer is still known as the Tropic
of Capricorn. Among the constellation's deep-sky objects are the globular
cluster M30 (NGC 7099), which is easily seen with a small telescope
but difficult to resolve into individual stars (magnitude 7.7; diameter
11'; distance 41,000 light-years; R.A. 21h 40.4m, Dec. 23° 11') and
the Capricornus Dwarf. See below for
details of the constellation's brightest stars.
 |
Capricornus. © 2003 Torsten
Bronger.
Copied here under the terms of the GNU Free Documentation License
|
| Stars brighter than magnitude 4.0 |
| Star |
Visual
mag. |
Abs.
mag. |
Spectral
type |
Distance
(lt-yr) |
R.A. (h m s) |
Dec. ( ° ' '' ) |
| Delta (Deneb Algedi) |
2.85 |
2.48 |
A5IVmv |
39 |
21 47 02 |
-16 07 38 |
| Beta (Dabih) |
3.05 |
-1.87 |
F8V+A0V |
314 |
20 21 01 |
-14 46 53 |
| Alpha-2 (Algedi, Giedi) |
3.58 |
0.96 |
G8IIIB |
109 |
20 18 03 |
-12 32 42 |
| Gamma (Nashira) |
3.69 |
0.54 |
A7IIIp |
139 |
21 40 05 |
-16 39 45 |
| Zeta (Yen) |
3.77 |
-1.67 |
G4Ib |
398 |
21 26 40 |
-22 24 41 |
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