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... ARC 3.5m | ... 2.1 Choosing and Exposure Time . 2.2 Choosing the CCD Gain . ... 3.2 Read Times and Read Noise . ... At the slow read rate of 100 KHz to be used for exposure times longer than a few seconds, we determine an average read noise of order 3.7 ? ... Table 2: Exposure time must be greater than the readout time by at least 0.03 s. The Agile CCD camera has two readout amplifiers, one of which is capable of reading at the fast readrate of 1MHz while introducing a read noise of order 7 ? ...

Astronotes Armagh Planetarium's Stellar Blog! ... Image credit: Wikipedia) . Galileo Galilei was born in Pisa , Italy on 15 February 1564.€а The eldest of six children born to Vincenzo Galilei and Giulia Ammannati, he was named after a relative called Galileo Bonaiuti who was a physician, university lecturer and politician.€а As well as acquiring the same first name as his ancestor, Galileo Galilei was destined to follow in his footsteps by studying medicine at the University of ...

. The face of King Henry VIII in a contemporary wooden figure, White Tower, Tower of London, London, England, August 8, 2013.

. Authors . Problem . Method . Advises . Contact Analysis of an accuracy of CCD asteroid observations carried out by professional and amateur astronomers . An accuracy estimation of CCD asteroid observations contained in the Minor Planet Center Database and carried out in the years 1999 - 2006 is realized. About 20 millions individual positions of the Numbered and Unnumbered Minor Planets were tested by means of calculations of (O-C) residuals to derive "mean error of a single observation" for more than 400

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... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†йs . des reportages . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil †А la une Le guide du ciel dтАЩ†йt†й 2008 . ... Le guide du ciel d'†йt†й . ... 09/11/2015 - Penser l'Univers aujourd'hui . ...