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His mother bought him a 6-inch reflecting telescope, and he soon was involved in the school astronomy club.
Reflecting telescopes have big curved mirrors instead of smaller, pricier lenses.
Astronomers quit building big refracting telescopes when they found they could more easily and cheaply build even bigger, more powerful reflecting telescopes using mirrors.
I have been unable to find the spiral galaxy with my binoculars, though it is clear enough in a 15-cm reflecting telescope.
It has been used as stiff lightweight structural material, specifically for support of reflecting telescope mirrors.
The design comprises a reflecting telescope with a 39.3 metre diameter segmented primary mirror, a 4.2 metre diameter secondary mirror, and will be supported by adaptive optics and multiple instruments.
Gregory pointed out that a reflecting telescope with a parabolic mirror would correct spherical aberration as well as the chromatic aberration seen in refracting telescopes.
One was the reflecting telescope.
The observatorys roof was designed to part in the middle on two sets of tracks to expose the reflecting telescope inside to the night sky.
In late 1668 he was able to produce this first "reflecting telescope".
In 1872, he purchased an 8.5 inch reflecting telescope to further his interest in astronomy.
The most common tool is the reflecting telescope but with a detector sensitive to infrared wavelengths.
Within a few decades, the reflecting telescope was invented, which used mirrors.
He also measured temperatures of stars using a 36-inch diameter reflecting telescope.
One simple layout of an astronomical interferometer is a parabolic arrangement of mirrors, giving a partially complete reflecting telescope (with a sparse or dilute aperture).
It is notable in having its own astronomy department complete with its own reflecting telescope mounted within a free-standing observatory on the school grounds.
The 1908 addition included a second dome and space for a new 37 1/2-inch reflecting telescope.
It is used primarily to make different kinds of mirrors including early reflecting telescope optical mirrors.
This reflecting telescope which had a 60 cm mirror, operated for nine months until its supply of coolant (liquid helium) ran out.
