Planet 9

Follow Mike Brown and his team at CalTech as they uncover dwarf worlds like the remarkably bright Eris; Haumea, an egg-shaped object rotating incredibly fast; and Sedna, whose orbit takes it deep into the far reaches of the Solar System. Is there a new planet beyond these distant objects? Join us on the hunt!

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Events > Planet 9
Southworth Planetarium
96 Falmouth Street
Portland, Maine 04103 United States
About the Event
Presented by
Southworth Planetarium
(207) 780-4249
October 16, 2026 through October 17, 2026

Each show is followed by a tour of the night sky, using our star projector. Tickets are $9.50 for adults and $9.00 for kids and seniors. Purchase at https://www.ticketleap.events/events/southworth or at the door. Shows: October 16th, @1pm October 16th, @7pm October 17th, @1pm

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