Greetings to All.
I am imaging the Andromeda Galaxy over a number of nights, hoping to get 10-12 hours of data.
I have taken darks, flats and bias calibration frames on the first night.
Do I have to retake all these calibration frames on the subsequent nights, or need I only take the darks and use the same flats and bias frames from the first night, when processing the complete data?
I will be using Pixinsight for the post-processing.
Thanks in advance for any assistance/advise.
Regards and clear nights!!