Useful Projects for a Lunar Eclipse
Here’s all you need to know to help us measure the size of Earth’s shadow during the total lunar eclipse on Jan. 20–21, 2019.
The post Useful Projects for a Lunar Eclipse appeared first on Sky & Telescope.
Here’s all you need to know to help us measure the size of Earth’s shadow during the total lunar eclipse on Jan. 20–21, 2019.
The post Useful Projects for a Lunar Eclipse appeared first on Sky & Telescope.