Some images with a MX7C CCD-camera.
The advantages of a cooled CCD camera are obvious. The sensitivity of light is outstanding. Also you can decide immediately if the image isn't good enough and change the exposure parameters accordingly. The drawback is still the prizetag (compared with the SLR-camera approach). And the laptop computer that goes with it, to make this concept work in the field.
At a dark site, a Ha-filter discloses a lot of intriguing glowing areas in the sky. OK, the exposuretime increases some 30 times compared with the full spectrum, but this gives you ample time to study the sky with your eyes. All images shown here, execpt # 1 and 1.1, are exposed with a Ha-filter attached in front of the CCD-camera.
This is the simple equipment which enabled the pictures to be taken. It is based on the Starlight Express MX7C colour CCD. |
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# 1 |
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# 1.1
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# 1.2 |
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# 2 |
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# 3 |
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# 4 |
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# 5 |
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# 6 The HII complex surrounding Deneb, with |
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# 7 |
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# 8
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The huge nebulosity north of Betelgeuse and Bellatrix in Orion. 25 mm lens, F1,5 @ 8 min. The site was a very dark rural one. |
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# 10 The nebulosity north of Sirius in Canis Major. 25 mm lens, F1,5 @ 8 min.
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