

Sky Observer Anthony Cook
64.3K posts

@AnthonyJCook2
Sky, space information, and more! Igor Stravinsky and J.S. Bach my fav. composers when not listening to Darius Milhaud. Griffith Observatory 1978-2021, retired.











Comet C/2026 A1 (MAPS) update: the newest updated heliocentric brightness (magnitude) vs. heliocentric distance for inbound Kreutz comets, including MAPS, has been posted by Nicolas Lefaudeux. It is evident that the comet's rate of brightening has been declining, with the comet tracking towards the "Headless" comet and possibly "Pre-perihelion breakup" range. It could be argued that the comet's rate of brightening is similar to that of Ikeya-Seki and far below that of comet Lovejoy. But that does not even take into account the apparent sudden dimming of the comet and decrease in the coma size reported by Jager yesterday. The latest data posted on COBS seems to increasingly hint at the same fading, but the data is highly heterogeneous and it will take more observation over the next few days to be more certain. However, anything other than quite rapid brightening at this point - with the comet well inside Earth's orbit and rapidly approaching the Sun - indicates something is wrong with the comet and makes its survival to perihelion, let alone a fine post-perihelion show, increasingly unlikely.






Spent this evening with fellow planetary observer and imager @tw__astro . We had a great observing and imaging session on Jupiter under some very good conditions. Here is a pic of me at the eyepiece of Tom's 60cm Dob with Jupiter above. We enjoyed some wonderful views visually - among the best of the apparition. Thanks for a great evening Tom!