Imaged C/2021 A10 last night on the recommendation of Nick James . Got 2 hours of 610 longpass (R+IR) images. Subtracting a typical star image from the comet image leaves a ring of residual light, suggesting a slightly diffuse appearance. Subtracting two stars from each other cancels perfectly. Residual light is roughly 6 pixels across, or 3.9". Images are south up. |
Page last updated: Sun 2 Apr 08:19:00 BST 2023