adjusting telescope

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• Adjusting — Adjust Ad*just , v. t. [imp. & p. p. {Adjusted}; p. pr. & vb. n. {Adjusting}.] [OF. ajuster, ajoster (whence F. ajouter to add), LL. adjuxtare to fit; fr. L. ad + juxta near; confused later with L. ad and justus just, right, whence F. ajuster to… …   The Collaborative International Dictionary of English

• Space Telescope Science Institute — The Space Telescope Science Institute (STScI) is the science operations center for the Hubble Space Telescope (HST; in orbit since 1990) and for the James Webb Space Telescope (JWST; scheduled to be launched in 2013). STScI is located on the… …   Wikipedia

• Mills Cross Telescope — Bernard Mills built the two dimensional Mills Cross Telescope in 1954 at the Fleurs field station of the Australian Commonwealth Scientific and Industrial Research Organisation in the area known now as Badgerys Creek, about 40km west of Sydney,… …   Wikipedia

• Gregorian telescope — Gregorian Gre*go ri*an, a. [NL. Gregorianus, fr. Gregorius Gregory, Gr. ?: cf. F. gr[ e]gorien.] Pertaining to, or originated by, some person named Gregory, especially one of the popes of that name. [1913 Webster] {Gregorian calendar}, the… …   The Collaborative International Dictionary of English

• Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution …   Wikipedia

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• Binoculars — Binocular telescopes, or binoculars (also known as field glasses), are two identical or mirror symmetrical telescopes mounted side by side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular… …   Wikipedia

• Iron sight — Sight picture through iron sights of an H K MP5 submachine gun. The annular shroud around the front post sight is aligned with the rear peep sight to ensure the weapon is properly trained. Iron sights are a system of shaped alignment markers… …   Wikipedia

• STS-61 — Infobox Space mission mission name = STS 61 insignia = Sts 61 patch.png shuttle = Endeavour launch pad = 39 B launch = 2 December, 1993, 4:26 a.m. landing = 13 December, 1993, 12:26.25 a.m. EST, Runway 33, KSC duration = 10 d 19 h 58 min 37 s… …   Wikipedia

• Indirect fire — means aiming and firing a projectile in a high trajectory without relying on a direct line of sight between the gun and its target, as in the case of direct fire. Aiming is performed by calculating azimuth and elevation angles, and may include… …   Wikipedia

• Active optics — is a relatively new technology for reflecting telescopes developed in the 1980s, which has more recently enabled the construction of a generation of telescopes with 8 metre primary mirrors. Active optics works by actively adjusting the telescope… …   Wikipedia