Clear Sky at Sunset
Observation Opportunity
Sunday May 25, 2025
Sunset 8:22 PM
Civil Dusk-8:54 / Nautical Dusk- 9:33 / Astronomical Dusk- 10:17
Nightfall 10:18 PM
This event is provided if clear skies are prevalent at sunset. Rittenhouse Members, (includes Observatory Volunteers) and those interested in membership or volunteering are welcome. Membership can be renewed or initiated on site with personal check, PayPal, or credit card.
This is an opportunity for you to bring you personal gear to observe from the dark skies at the observatory. Binoculars are considered observing gear. There is no presentation, just fellow amateurs enjoying the view.
Observatory parking areas and visitor center are closed, alternate parking provided at upper parking lot North of the Observatory. You may set up your personal gear to observe from the upper lot, campground bathroom is available at West end of lot.
If you are up to a walk, you may also bring your observing gear down to the amphitheater. Members are available to assist.