The elements of astronomy; a textbook . theeye end of the instrument, a reticle of spider-lines (see Appendix,Art. 544) is so placed in the tube that on looking into the eye-piece itcan
Backyard Astronomy
A historical photograph of the meridian telescope... | Download Scientific Diagram
How to Point a German Equatorial Mount South and do a Meridian Flip - YouTube
The solar transit This account of the solar compass, and the meridian attachment for transit instruments was written for Young & sons . ngs the credit due to skillful workmanship and good
Astronomy Without a Telescope
The Airy Transit Circle telescope over the prime meridian line at the Royal Observatory, Greenwich. London Stock Photo - Alamy