Ridgeway Observatory

Seventy years of clear nights.

Six entries from the log of a volunteer observatory above Carrow. Each one steps further across the page than the one before it, so how far right an entry has walked is how far through the history you have read.

1948

The dome on the ridge

A retired schoolmaster left the parish his fifteen-inch refractor and the field it stood in. Four volunteers built the first dome over it in a single summer, out of marine plywood.

1961

Thursday nights, open to all

The observatory began opening one evening a week to anyone who walked up the track. The Thursday queue is still how most of our members first arrived.

1974

The plate archive begins

Every clear night went onto glass. The cabinet in the west wing holds eleven thousand plates, and half of them record a sky that is no longer that dark.

1989

The lighting ordinance

The parish agreed to hood every street lamp within two miles. It cost two years of letters and gave the ridge back a full magnitude of sky.

2004

Glass onto disc

Volunteers scanned the archive plate by plate across nine winters. Three of the images held a variable star that nobody had catalogued.

2019

A second dome, and the dark-sky mark

The ridge was designated a dark-sky site and the second dome opened under it, with a roof a fourteen-year-old can drive from a phone.