photoheliometer

Questions

What does photoheliometer mean?

A double-lens instrument for measuring slight variations of the Sun's diameter by photography, based on the common chord of two overlapping images.

Where does photoheliometer come from?

From photo- + helio- + meter.

How to pronounce photoheliometer

1. Open the pronunciation page — Open the Speakur entry for “photoheliometer”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “photoheliometer”.
4. Repeat and practice — Say “photoheliometer” aloud, matching stress and vowels until it feels natural.