A question from a beginnerPosted By Jim Thommes |
Floyd,
Well, it probably depends on several other factors - focal ratio, exposure time, and target brightness. But yes, in general high haze, full moon, large reflecting object nearby (tree) - all would contribute to raise the background level in the image. And unfortunately, likely not evenly across the frame.
Depending on the object, what can possibly help lower the general background level is narrowband filters. Many on this forum will use a H-alpha filter on emission nebula targets for these conditions.
Well, it probably depends on several other factors - focal ratio, exposure time, and target brightness. But yes, in general high haze, full moon, large reflecting object nearby (tree) - all would contribute to raise the background level in the image. And unfortunately, likely not evenly across the frame.
Depending on the object, what can possibly help lower the general background level is narrowband filters. Many on this forum will use a H-alpha filter on emission nebula targets for these conditions.
