| 1. | The observatory received a new meridian circle during his tenure.
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| 2. | Meridian circles are often called by these names, although they are less specific.
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| 3. | The first automated instrument was the Carlsberg Automatic Meridian Circle, which came online in 1984.
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| 4. | There he repaired the meridian circle and used it to do a determination of the constant of aberration.
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| 5. | The move was supervised by the precision engineering company, who also manufactured an astrograph and a meridian circle.
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| 6. | He remained at Lick until 1908, operating the Meridian Circle program to make precise measurements of star positions.
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| 7. | New instruments were ordered and installed at NOA, a 16 cm meridian circle and a 40 cm refractor.
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| 8. | Meridian circle at the Kuffner observatory, Vienna, Austria, built by Repsold & Sons, Hamburg, 1886.
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| 9. | The observing building housing the meridian circle did not have a rotating dome, as is often seen at observatories.
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| 10. | Much of his astronomical work included measurements with the meridian circle, a catalogue of double stars and stellar photometry investigations.
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