Clue: What pupil must be set to in practical astronomy?
We have 1 possible answer for the clue What pupil must be set to in practical astronomy? which appears 1 time in our database.
Possible Answers:
Related Clues:
- Lens
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- Part of telescope I reportedly mounted on castle, for example
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- Viewing lens of optical instrument
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- Says I have a chart for Clare and Iris perhaps?