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Stellarium / stellarium

Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
https://stellarium.org
GNU General Public License v2.0
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Penumbral lunar eclipse not visible #3661

Closed Krukarius closed 7 months ago

Krukarius commented 7 months ago

Just noticed, that the penumbral lunar eclipse isn't visible at all.

Penumbra

gzotti commented 7 months ago

It is visible, esp. in motion.

gzotti commented 7 months ago

I had expected some argument now. Just compare a penumbral 50% eclipse to uneclipsed Moon. There is a difference, even if 50% is not enough for detection with unaided eye in nature. We have discussed earlier that the umbral edge may be too sharp, however this is also one of the worst things to photograph. Either you burn out the penumbra part to see the shadow edge, or the umbra is black and penumbra has a longer gradient. It is just not a linear falloff. Probably we can play more with shadow texture and overall brightness of the Moon during the whole eclipse.

github-actions[bot] commented 7 months ago

Hello @Krukarius!

Thank you for suggesting this enhancement.

gzotti commented 7 months ago

Actually to be solved in #2782.

github-actions[bot] commented 7 months ago

This issue already exists.