29 Aug
2022
29 Aug
'22
1:23 p.m.
Hi Folks, If you have an H-a scope or etalon/filter attachment, there's an amazing prominence today. If not, you can see part of it here (it's taller than the field of view of these scopes): https://gong2.nso.edu/products/tableView/table.php?configFile=configs/hAlpha... John