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The Dominion Astrophysical Observatory - from the south

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The Dominion Astrophysical Observatory - from the south.jpg Course of light in telescope from star to focusThumbnailsWire Railway at the Harwood Coal mines, British ColombiaCourse of light in telescope from star to focusThumbnailsWire Railway at the Harwood Coal mines, British ColombiaCourse of light in telescope from star to focusThumbnailsWire Railway at the Harwood Coal mines, British ColombiaCourse of light in telescope from star to focusThumbnailsWire Railway at the Harwood Coal mines, British Colombia