Thankfully, there are lots of entry-level telescopes on the market ... His instrument is a Celestron NexStar, a Schmidt-Cassegrain reflector with a 150-mm aperture, has a motorized altitude ...

The NFO WebScope is a Web-based observatory which has been in use since 2004 December. The telescope is an 0.6 m Group 128 Cassegrain reflector with a new drive and control system. By optical ...

The Xinglong 2.16-m reflector is the first 2-m class astronomical ... and the Lijiang 2.4-m telescope were built. At present, there are three main instruments on the Cassegrain focus available: the ...

The 24-inch Boller & Chivens f/8 Cassegrain was installed in the dome of Sommers-Bausch ... For the first eight years of its life, the 24-inch was the sole telescope at SBO, and was kept busy seven ...

KAO housed a 36-inch (91.5 cm) Cassegrain reflector telescope, optimized for observing infrared radiation within the 1 to 500-micron spectral range. The telescope cavity remained open to the ...