Help needed
I'm in the process of comissioning a new camera on my RCOS and I'm getting some weird flares on bright stars. These did not appear with my old camera (ST8XME) however the new camera a PL16803 has a much larger chip size. Although the flats for this image werent perfect, I dont believe they have anything to do with the flares. Notice that they are basically concentric with the centre of the FOV.
One theory is that it may be due to reflections within the baffles? I'm not sure. If anyone has experienced (and diagnosed) a similar problem I would be grateful for some advice.
The image is 10 * 20mins @ -30c dark, bias and flat callibrated. Stacked by CCDStack.
Thanks in advance
|