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Last modification on 01.01.2010 14:34:59 English

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Table of Content


General Calculations

In this section you will find an Excel-file, with general calculations for:

  • Cameras, angle of field of view and of a single pixel with different sensor chips and different lenses
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Light Pollution - Night Sky Brightness Measurement

Light pollution is an increasing problem, no only for astronomers, see http://www.darksky.org/.

Astronomers prefer a really dark sky where you can see many stars like the milky way and faint deep sky objects, e.g. galaxies and nebula. Finding of good observing locations and conditions is facilitated by night sky brightness measurements.

In the German speaking forum www.astronomicum.de Thomas Walt explains a method to measure the night sky brightness with a DSLR-camera. Any star with known brightness could be used as reference.

This Excel-file contains the formula for quick calculation.

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Links

Volkssternwarte Ennepetal e.V.

www.lichtverschmutzung.de = VdS Fachgruppe Darksky - German Initiative Light Pollution

www.darksky.org/

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