You don’t need long exposure now that we have digital cameras, it’s better to stack many short exposures. It’s trivial to throw out the outlier values which rem

You don’t need long exposure now that we have digital cameras, it’s better to stack many short exposures. It’s trivial to throw out the outlier values which removes the satellite trails, and other sensor noise. Images with prominent streaks are being deliberately processed to only keep the bright outliers and delete the clean frames.