A Reflective Gaussian Coronagraph for Extreme Adaptive Optics: Laboratory Performance

… telescopes (in particular, the 8.1 m Gemini North Telescope). It includes one spider vane, different mask radii (r = 1.9λ/D, 3.7λ/D, and 7.4λ/D), and two types of reflective focal plane …

POETS: Portable Occultation, Eclipse, and Transit System

… telescopes anywhere in the world, potentially on short notice. Similar considerations apply to planetary transits and solar eclipses. We have designed a camera system called POETS (Portable Occultation, Eclipse, and …

The Ten Best: Telescopes

1. EvoStar 102, £269 …

The Orion Nebula is seen in an image taken from the Hubble and

(Reuters) - The Orion Nebula is seen in an image taken from the Hubble and Spitzer space telescopes. FOR EDITORIAL USE ONLY REUTERS/NASA/Handout …