... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . This telescope by George Calver , which was extensively modified in the mid 20th century to a Schmidt design was returned to its original Newtonian configuration, fitted with a new drive, and rehoused in a new dome. ... Tupman spent бе800 on the telescope, and a further sum on a suitable dome. ... Colonel Tupman was so disgusted that he dismantled the telescope and pulled down the dome. ... Schmidt Configuration . ...

. Shown here is my first self made instrument, which I designed and built from 1995 to 2001. It is the 110-mm f / 7,3 Newtonian reflector on the German equatorial mounting. Your can see two versions of the mounting and some fotos of details.

. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

... The collecting area is increased by nesting concentric mirror pairs, all having the same focal length. ... Figure shows the largest optical element being ground at HDOS. ... X-ray testing demonstrated that the CXO mirrors are indeed the largest high-resolution X-ray optics ever made; the nominal effective area (based on the ground calibrations) is shown as a function of energy in the left panel of Figure , along with those of their Einstein and ROSAT predecessors. ...

Next: Sample instrument files Up: Instrument configuration and Previous: Other detectors: DET= . ... Possible values are 'CLEAN' , if the mirrors have been re-coated or cleaned within two weeks of the observing run, and/or a flashlight beam is barely visible on optical surfaces; 'AVERAGE' , if a flashlight beam is plainly visible on the optical surface, but the dirt is not very bad; and 'DIRTY' , if shining a flashlight beam on the primary produces a sensation of revulsion in a trained observer. ...

... Tonight's Sky . ... Sky this Month . ... Product Reviews . ... Observing springtime deep-sky objects with a large telescope . ... Webb telescope passes key mission design review milestone . ... Artist's rendition of the James Webb Space Telescope. ... NASA's James Webb Space Telescope has passed its most significant mission milestone to date, the Mission Critical Design Review (MCDR). ... The spacecraft design, which passed a preliminary review in 2009, will continue toward final approval next year....

... Instruments . ... last 10 years in ADS) . in SAO press releases . ... Back to SAO homepage . Last update: . ... moisav sao.ru . Laboratory of Spectroscopy and Photometry of . ... SCORPIO Multimode focal reducer. SCORPIO-2 Multimode focal reducer (the project) . ... Longs-slit spectroscopy . Multi-slit spectroscopy . ... MPFS Multi Pupil Fiber Spectrograph (integral field) . MOFS Multi Object Fiber Spectrograph . ...

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Projects . ... 2/3-m Telescope . ... Site . ... Donations . ... In 1995, Hughes Danbury Optical Systems (now Goodrich Optical and Space Systems Division, Electro-Optical Systems) donated to Winer a 2/3-m (26.5-inch) Corning Ultra Low Expansion ULE lightweighted mirror. Using this donation as a basis, we entered into a project with a private, non-sectarian school to design and build a telescope for the school and one for us. ...

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

Astronomy Picture of the Day . ... 26.12.1996 . ... To peer into our cosmos' unknown depths, astronomers must deploy new tools - and the classic new tool is a larger telescope. Pictured above is the new Hobby-Eberly Telescope (HET) which recently declared "first light" in western Texas. HET currently has the largest single mirror of any optical telescope -- 11 meters in diameter. ... HET 's huge size, on the other hand, allows it to see very dim objects and determine their spectrum. ...

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