A star diagonal, erecting lens or diagonal mirror is an angled mirror or prism used in telescopes that allows viewing from a direction that is perpendicular...
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Decan (redirect from Diagonal Star Clocks)
surrounding the observation methods used to develop and populate the diagonal star tables, and the criteria used to select decans (brightness, position...
24 KB (1,527 words) - 21:05, 16 October 2024
Newtonian telescope The tertiary mirror used in a Nasmyth telescope A star diagonal right-angled telescope eyepiece mount An optical Edwardian parlour entertainment...
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A star is a luminous spheroid of plasma held together by self-gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked...
147 KB (16,412 words) - 12:11, 7 September 2024
Pentagram (redirect from Unicursal star)
known as a pentalpha, pentangle, or star pentagon) is a regular five-pointed star polygon, formed from the diagonal line segments of a convex (or simple...
35 KB (4,072 words) - 05:28, 2 October 2024
Flag of Pakistan (redirect from Flag of the Crescent and Star)
points of the heraldic star and the star lies with one point on the diagonal L3 at point P3 where circle C1 intersects the diagonal L3. The flag is coloured...
26 KB (2,528 words) - 12:22, 2 October 2024
telescopes historically List of telescope types Reflecting telescope Star diagonal Heliometer "Telescope Calculations". Northern Stars. Retrieved 20 December...
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lens. Star Diagonal: Used to change the angle of the light coming out of a telescope, for easier viewing. Herschel Wedge: Similar to a star diagonal with...
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reducing the overall length for a given primary focal length. A prismatic star diagonal for an astronomical telescope may consist of a single Porro prism (configured...
109 KB (13,482 words) - 23:31, 2 May 2024
in 1965.: 3275 Prism (e.g. Porro or roof prism) Catadioptric system Star diagonal Lautemann, Kerstin; Leonhard, Martin; Stern, Regina; Heda, Jennifer...
4 KB (480 words) - 08:26, 16 October 2024