Observations of the Apparent Distances and Positions of 380 Double and Triple Stars, Made in the Years 1821, 1822, and 1823, and Compared with Those of Other Astronomers : Together with an Account of Such Changes as Appear to Have Taken Place in Them Since Their First Discovery. Also a Description of a Five-Feet Equatorial Instrument Employed in the Observations /
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| Typ dokumentu: | Kniha |
| Jazyk: |
angličtina |
| Vydavatel: |
London :
W. Nicol,
1825.
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| Předmět: | |