Horsing Around Again

The following image is composed of 24×600 second subs, Ha filtered, taken on March 9th and 10th. It has much less noise than the previous image. It will be interesting to see what happens with another couple of evenings worth of subs added.

Horsehead Nebula (B33, IC434)

Horsehead Nebula (B33, IC434) – Ha filtered

Part of the noise in the previous image was due to a shortage of darks – increasing the number of dark frames did reduce the noise greatly.

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