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M81, dkamen

M81

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M81, dkamen

M81

Equipment

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Description

Personally I prefer leaving the stars, but the CEO says she likes it like this.

A note about the equipment: this was done with the ASI482MC. The maker says it is 12 bit but the sensor datasheet says it is 10 bit. In practice it delivers about 10.5 bit. Frames are notoriously difficult to calibrate, with a lot of residual amp glow around the edges, even with dark sub temperature matched within 1 degree of each light . I do like the image, but it does not do justice to the 20 hour exposure and 2900 subs. This was my first and last DSO project with the 482.

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M81, dkamen