Grand Banks - .C22 V.6 1896 - Solar Parallax from Heliometer Observations of Minor Planets. (Annals of the Cape Observatory.)

Треки

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.C22 V.6 1896 - Solar Parallax from Heliometer Observations of Minor Planets. (Annals of the Cape Observatory.)

15:36

cover

.C57 No.3 1877 - Micrometrical Measurements of 166 Double and Triple Stars. (Publications of the Cincinnati Observatory)

17:10