High Top Observatory Open Day

Name: High Top Observatory Open Day
Start: 2022-09-24T14:00:00+00:00
End: 2022-09-24T17:00:00+00:00
Location: High Top Observatory

Saturday 24th September 2022 from 15:00pm to 18:00pm

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High Top Observatory
Flaunden, Hemel Hempstead, Buckinghamshire, HP5 1FF

The South West Herts Astronomical Society will be opening their High Top Observatory for interested public members to visit.

Come and see what our society offers, and speak to the experts! There will be refreshments and snacks too!

If the weather is good, the event will likely go on into the evening for observing.

Note: There is now a compost toilet facility on site. Please wear sensible footwear.

This observatory open day is a small event which requires booking. Please email: [email protected] to register your interest.

Please note that this has already taken place on 24/09/2022

Event organiser

South West Herts Astronomical Society is organising this event

Please contact South West Herts Astronomical Society directly for more details regarding this event or, if appropriate, contact the event venue.

Email: [email protected]
Website: South West Herts Astronomical Society

Event booking

Please email [email protected] to register your interest in attending this event.

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Event darkness

The Moon has a big impact on the visibility of celestial bodies in the night sky. Try to plan your stargazing when there is no bright Moon at night as this is when the skies will be at their darkest.

The below chart shows if and when the skies will be at their darkest during this event. Moonlight is shown in light yellow and the Sun's twilight in light blue. Midnight on the date shown is shown as a white line with sunset to the left and sunrise the next morning to the right. A black background with stars shows the best times for stargazing.

Sat 24th Sep

Waning Crescent

4 % illuminated

Dark from 19:09 to 04:40

Dark for 9h 30m

Local light pollution

High Top Observatory is estimated to have light pollution levels similar to asemi-rural semi-rural location based on the latest data from the VIIRS satellite.