I have worked on “Frosty Leo” for two nights using my 25” f 4 Dobsonian. In the first night (with good seeing at 700m) I could clearly separate the two bright lobes at 350x and 500x. The southern half appeared a little brighter and larger than the northern half. But I was unable to see the halo and ansae. In the second night (with good transparency but mediocre seeing, at 950m) I used higher magnifications (720x and 1000x), which made the dark channel between the lobes blur out completely. But the northern wing, especially the ansa, showed up momentarily now, if extremely weak. The southern wing remained invisible. Although I cecked for it, I could not perceive any color in “Frosty Leo”.

Johannes