Alpha Scorpii have name related to his
colour: his name is composed of anti-Ares and mean "antagonist of Mars",
another object with a very deep red colour. The region around Antares is
very rich of objects, the brightest is the globular cluster M4. North-est
of Antares there is also the globular NGC6144. All the region lies in some
nebulas, the brighest is on the right, near Sigma Scorpii, and is catalogued
as Sh2-9.
|
Technical Data
|
| Optics |
Pentax 75 apochromatic
refractor |
| Focal Lenght |
500 mm |
| Focal Ratio |
f/6,7 |
| Exposure Time |
25 min exposure |
| Film |
Kodak E200 |
| Developement sensibility |
320 ISO |
| Location |
Capanne di Cosola (AL,
on the Appenninus, Italy) at 1500m |
| Date and time of exposure
start |
15 may 2002, 0.19 UT |
| Mount |
Gemini G41 |
| Tracking |
ST4 |
| Temperature and humidity |
T=+8°C, RH=48% |
| Notes |
- |
