Figure: A proof for the northern hemisphere that the NCP altitude equals observer latitude

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Credit/Permission: © David Jeffery, 2013 / Own work.
Image link: Itself.
Credit/Permission: © David Jeffery, 2019 / Own work.
Image link: Itself.

Local file: local link: declination_altitude.html.
Extended file: Celestial sphere file: declination_altitude_4.html.
File: Celestial sphere file: declination_altitude.html.