Essential Information
| Type | Planetarium shows |
|---|---|
| Location |
Royal Observatory
|
| Date and Times | Weekends in September | 2.30pm |
| Prices | Adult £12 | Child £6 | Student & Under 25: £8 |
| Free for members. Not a member? Join now |
From the Earth’s closest neighbour in space, our Moon, to the moons of the distant gas giants, this show explores our Solar System’s many natural satellites.
Presented live by Royal Observatory astronomers, you will discover more about the wide range of shapes and sizes that these moons have, as well as features such as enormous craters, active volcanos and even underground oceans.
Recommended ages 7+. Under-5s will not be admitted – Ted's Space Adventure is suitable for younger children.
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About the Peter Harrison Planetarium
The Royal Observatory is home to London’s only Planetarium.
Lie back in reclining seats and watch as the dome above you fills with stunning simulations of the night sky. Astronomers can show you the sky as it appears on the date you visit, travel deep into the Universe and display amazing astronomy photography and video.
During live shows there’s often a chance to ask questions after the show: don’t miss your chance to speak to a real space expert!
Check out the full list of upcoming planetarium shows and events here.
Plan your visit
All planetarium shows including Moons Beyond Counting are available to book online and by phone. Shows are very popular and often sell out: to prevent disappointment, we recommend booking tickets in advance.
Click here to book online or contact the Bookings team on 0208 312 6608. The office is open Monday-Sunday, 9am-5pm.
Show times
Moons Beyond Counting runs on Saturdays and Sundays throughout September. The shows start at 2.30pm.
Frequently asked questions
Where is the Peter Harrison Planetarium?
The Peter Harrison Planetarium is part of Royal Observatory Greenwich, a quick, easy journey from central London via train, DLR and bus.
The Planetarium itself is located on the lower floor of the Modern Astronomy Centre (sometimes referred to as the ‘South Building'). If you come to any part of the Royal Observatory site, staff can guide you to the Planetarium.
Please note that the Observatory is at the top of a steep hill within Greenwich Park, around a 15-minute walk from the National Maritime Museum and the Queen’s House. Latecomers cannot be admitted once a show has started, so please check your route beforehand.
When should I arrive?
Please allow enough time to get to us and aim to arrive at least 15 minutes before the show’s start time on your ticket, as latecomers cannot be admitted.
Can children attend?
Yes! This show is suitable for ages 7+. Children under 5 will not be admitted. All children must be accompanied by an adult.
How long will the show last?
Planetarium shows last up to 30 minutes.
Can I bring a pushchair?
Pushchairs are not allowed into the planetarium itself but there is a designated buggy park in the foyer.
Can I visit the Observatory too?
You do not need a Royal Observatory ticket to visit the Planetarium. However, if you would also like to visit the historic observatory then you can book a separate ticket here.
What provisions are in place to support those with additional needs?
From choosing the best show and ticket type to being inside the planetarium, check out our full accessibility information here.
I have another question.
Check our frequently asked questions here. If you're still not sure, call or email the Bookings team.
Call: +44 (0)20 8312 6608
Email: bookings@rmg.co.uk
What’s On
See more Royal Observatory events and planetarium shows.
Choose your tickets
Please book your planetarium show tickets at least 24 hours in advance. Planetarium tickets do not include entry to the Royal Observatory.
Planetarium show
Moons Beyond Counting
- Weekends & holiday weekdays in September
- Suitable for ages 7+
- Not available for under 5s
| Adult | £12.00 |
|---|---|
| Child | £6.00 |
| Student & Under 25 | £8.00 |
Planetarium shows
Planetarium tickets for members
- Free tickets for members
- Pick your preferred show
- Membership card number required
Advance booking recommended
Become a Member
- Unlimited entry all year
- Royal Observatory
- Cutty Sark
- Planetarium Shows
- Special exhibitions
| Direct Debit | One-off |
|---|---|
| Individual: £50 | Individual: £60 |
| Family: from £60 | Family: from £70 |