astrophotography by bill w

 unusual spiked sun spots saturday morning ;) spiked sunspots 2/5/2022 15:55 UTC according to google they are spiked seed capsules from the ...

a long straight trough on the moon is called a rille (german for groove). just to confuse, "rima" the latin term for crack or fiss...

also seen in the wider image in the previous post is this trio of craters: Theophilus, Cyrillus and Catharina craters  9/13/2021 02:54 UTC  ...

here's the feature that helped me identify the crater in the previous post: rupes altai  9/13/2021 02:54 UTC  the distinctive curved whi...

 i know very little about the moon, but once in a while i'll turn my planetary rig to the really bright thing in the night sky.  my usua...

Here are several images of venus captured with infrared and ultraviolet filters.  UV  light shows cloud structure which cannot be seen in th...

Solar Prominence Ha  8/15/21 18:20 UTC   Solar Prominence Ha  8/15/21 18:20 UTC Exclusion Solar Prominence Ha  8/15/21 18:32 UTC smaller pro...