The image shows the
spectral perspective of Orion.
The emission nebula M42 has a prominent emission in Ha as well as in the green (oxygen)
part of the spectrum. |
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| The equipment
is a SLR camera fitted with a 85/1,7 objective and in front, a reflexion grating. |
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| The main part
of the system: The BIG reflexion grating! |
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