That photo from Twitter shows some of the silky pink that stretched across the sky after tonight’s final sunset of summer; tomorrow night, fall arrives, and you can greet its arrival with Alice Enevoldsen, who you may remember as the heroic volunteer WSB mapmaker during Snowpocalypse last winter. Alice is among many other things, author of alicesastroinfo.com, and is welcoming you to join her at Solstice Park (over the tennis courts northeast of Lincoln Park; map) tomorrow night to greet the arrival of fall at 7:06 pm our time. Could be some stargazing involved if the weather holds; read Alice’s full invite here.