PeterLeMesnil Profile Topics Started Replies Created Engagements Favourites Search replies: Forum Replies Created Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 10 April 2023 at 1:24 pm in reply to: Using ASTAP for comet measurements #616718 PeterLeMesnilParticipant re to Grant, If light is spread on many pixels you can adjust the aperture circle see documentation p76; step 4 adjust the aperture Should answer extended sources? Regards Peter 9 April 2023 at 10:31 pm in reply to: Using ASTAP for comet measurements #616710 PeterLeMesnilParticipant Mark, If you want an efficient and quick tool for comet try TYCHO TRACKER Peter Author Posts Viewing 2 posts - 1 through 2 (of 2 total)