... This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... This list of references is long in part because each web-based image source is viewed as a separate reference, even though half or more come from Harvard Libraries, through their Visual Information Access (VIA) . ... History of the Harvard College Observatory During the Period 1840-1890. 1890. baker90 . ... The Harvard Crimson...

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• Word Lore
• Eyes on the Sky, Feet on the Ground: Chapter Four
• The Observatory Pinafore

The types of respirators in use at APO are half-face, full face, and mask-style filter types. ... These respirators DO NOT supply oxygen. ... The observatory does not maintain Self Contained Breathing Apparatus (SCBA) for use and, consequently, materials that require them cannot be used. ... Whenever possible chose adequate ventilation over using a respirator. ... Oxygen monitors used for confined spaces may be used to monitor oxygen levels where respirators are required. ...

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... Electronics ґ LED test source for PMT meas., scint. (= #p.e.s) and perhaps: Calibration scheme Front end electronics/signal processing/digitz'n In Principle: R D Unique to LC detector Victoria04 R. Frey 4 Fermi-NICADD Extruder Victoria04 R. Frey 5 Prototype 5 m X 2.5 m plane Layout of Scintillator Strips in one Plane MINOS MAPMT and base R. Frey 6 Victoria04 R D Goals Unique to LC Muon Sys Ї Ї Ї Ї Ї Ї Simulation studies (NIU/Fermilab) LED - pulser/calibration (WS) MAPMTs ґ learn how ...

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Twilight observations with MASS/DIMM B. Safonov Sternberg Astronomical Institute Moscow State University Comprehensive Characterization of Astronomical Sites, 2010 B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 1 / 17 Why observe in twilight with MASS/DIMM? ... ASM includes 3 devices sensitive to background: guider, DIMM and MASS. B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 2 / 17 Background in guider. ...

206. http://www.princetonastronomy.org/newsletters/06_2004sidereal.pdf

207. Archeops Main Page