19 Frame (Usually do 6) Eta Carinae Nebula NGC 3372 15th and 16th May 2020

The more frames you take you don't necesarily inclrease the brightness but when combined the brighter parts of the image can be enhanced without enhancing the background noise in the image making it easier to produce a clearer and more vibrant appearance.  I have up to now mostly just taken 6 shots and combined them and carried out to reasonably heavy nois e reduction in post processing.  The nineteen frames (of 24 taken over 2 nights) required on very minimal noise reduction and the nebula required much less contrast and colour enhancement.