Planning Your Eclipse-day Party
First, determine in advance if there is a safe, comfortable place on or near the library grounds where the Sun will not be behind a hill, a building, a grove of trees, etc. during the time of the August 21 eclipse. A local astronomer or science educator can help you determine where the Sun will be in the sky and whether it will be visible from the library. (Informative maps with the eclipse circumstances can be found at: https://www.greatamericaneclipse.com/nation/)
If there is a good viewing site at the library, invite the public (and the local media) to watch the eclipse from there. Have glasses available and other methods for safe viewing (See safe viewing strategies in section 2 earlier.) If your library does not have a good viewing site, you might partner with others in city government, schools, community centers, nature centers, science centers or local business to arrange for a place where the community can gather to watch the eclipse and have access to vetted information and options for safe viewing.
Have someone ready to explain what is happening, and provide some running narration, since the partial phases of the eclipse take a long time (roughly 2.5 hours, with maximum coverage about halfway through this time). Perhaps someone else can distribute and collect viewing materials, since people may come and go during this long period. (Make sure bathrooms are ready for a larger than usual crowd if the library or other site has limited facilities. Maybe another institution nearby can take bathroom overflow – if you pardon the expression.)