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NGC 253 (Sculptor's Galaxy) is one of the most prominent edge-on galaxies, unfortunately the northern hemisphere observers are penalized because of the low altitude on the horizon (this image was captured with the galaxy only 18° above the horizon). At less than 2°, to the south-east, is present another interesting object, the open cluster NGC 288.
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Optics | Pentax 75 apochromatic refractor |
Focal Lenght | 500 mm |
Focal Ratio | f/6,7 |
Exposure Time | 25 min |
Film | Kodak E200 |
Developement sensibility | 320 ISO |
Location | Colle del Nivolet (AO, on the Alps, Italy) at 2600m |
Date and time of exposure start | 5 october 2002, 22.39 UT |
Mount | Gemini G41 |
Tracking | ST4 |
Temperature and humidity | T=-1°C, RH=65% |
Notes | - |
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