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Letchworth Observatory

Letchworth Observatory

Standalone Farm, Letchworth Garden City, Hertfordshire, SG6 4JN

Best time to visit

Run by the Letchworth & District Astronomical Society the observatory is located on the edge of Letchworth Garden City away from the worst of the light pollution. The observatory hosts frequent public stargazing events throughout the year.

Location events organiser

Letchworth & District Astronomical Society

Letchworth & District Astronomical Society organises events at this location

Please contact Letchworth & District Astronomical Society directly with any enquiries relating to visiting this location

Email: [email protected]
Website: Letchworth & District Astronomical Society
Twitter: @LetchworthAstro
Facebook: Letchworth & District Astronomical Society

Weather forecast

  • 01/05/24

    17° 8%

  • 01/05/24

    13° 6%

  • 02/05/24

    10° 15%

  • 02/05/24

    9° 33%

Weather forecast for Letchworth Garden City (1.0 miles away) updated 01/05/24 at 16:01.

Local light pollution

Letchworth Observatory is estimated to have light pollution levels similar to an urban location based on the latest data from the VIIRS satellite.

The above demonstrates the estimated effect of light pollution - graphics created using Stellarium.

Light pollution map of Letchworth Observatory

Best time to visit

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 when the skies will be at their darkest at this location and therefore the best time to visit. 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. See our dark sky calendar for more details.

Moon phase on Wed 1st May

Wed 1st May

Third Quarter
55 % illuminated
Dark from 20:55 to 02:40
Dark for 5h 44m
Moon phase on Thu 2nd May

Thu 2nd May

Third Quarter
44 % illuminated
Dark from 20:58 to 02:55
Dark for 5h 56m
Moon phase on Fri 3rd May

Fri 3rd May

Third Quarter
33 % illuminated
Dark from 21:00 to 02:52
Dark for 5h 51m
Moon phase on Sat 4th May

Sat 4th May

Waning Crescent
23 % illuminated
Dark from 21:02 to 02:49
Dark for 5h 46m
Moon phase on Sun 5th May

Sun 5th May

Waning Crescent
14 % illuminated
Dark from 21:05 to 02:47
Dark for 5h 41m
Moon phase on Mon 6th May

Mon 6th May

Waning Crescent
6 % illuminated
Dark from 21:07 to 02:44
Dark for 5h 36m
Moon phase on Tue 7th May

Tue 7th May

New Moon
2 % illuminated
Dark from 21:10 to 02:42
Dark for 5h 31m

Find more dates

If you are planning to visit this location check our dark sky calendar to find out when is best!

Calendar

Forthcoming events

Below is a list of events at Letchworth Observatory. View these events on our calendar, add them to your calendar or Google Calendar.

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