Weather Data

Astronomers are naturally interested in the weather. MPAS has installed several instruments at its Mt Martha Observatory site.

Weather Station

MPAS has an internet weather station running at our Mt Martha Observatory. The realtime & historical data can be found here in Weather Undergound.


MPAS is contributing to a worldwide study on sky brightness being run by the Astrophysics department of the Universidad Complutense de Madrid in Spain.

The initiative is a European project called Stars4All, and our site at The Briars has been chosen to be a part of a worldwide network of photometers, measuring the sky brightness evolution with time.

We have been supplied with a photometer, which has been mounted on the roof of the Mt Martha observatory. The photometer collects data at one minute intervals (24×7), and sends these data to the Spanish university’s server, for input into the Stars4All project.

The photometer measures sky brightness and cloud cover, among other data. The full data from our station can be accessed on the Stars4All dashboard.

Current Sky Brightness
Last Week’s Cloud Cover
Sun & Moon
Map of Stars4All Stations

Additional Weather & Observation Data

Cloud Free Night provides detailed cloud forecasts and skycams. You can select the Briars as a location on Meteogram page.