A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...

adapted from Observe: Eclipses, published in 1979 by the Astronomical League and "Safe Solar Filters," by B. Ralph Chou, Sky and Telescope, August 1981) . ... Tape TWO pieces of film together into a sandwich, and tape this over the opening in the cardboard. ... The cardboard frame will act as a shade from the bright Sun, while you safely observe through the film sandwich. ... Undeveloped film is not safe. ... tape . ... At the end of one of the tubes, tape the aluminum foil, and make a tiny pinhole. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

OptInt PmWiki . Pm Wiki / . ... This page gives suggestions for upgrading an existing PmWiki 1.x installation to use PmWiki 2.0. In this page we assume that a site administrator already has a site running using PmWiki version 1.x or earlier in a somewhat standard configuration, and wants to upgrade to the 2.0 software. ... The approach given here allows the administrator to install, configure, and test PmWiki 2.0 on an existing set of pages without risking an existing 1.x installation. ...

... An Orion of a Different Color . ... It is a familiar object though, the grand stellar nursery known as the Orion Nebula . But the striking picture combines images taken through three separate filters, each designed to record different emission lines - light from Sulfur, Oxygen, and Hydrogen atoms glowing in the tenuous nebular gas. At such low densities , Sulfur and Hydrogen atoms emit red colors while Oxygen glows green. ... Publications with keywords: Orion Nebula . ... The Heart Of Orion . ...

Telescope Tip-Tilt Secondary Mirror The tip-tilt secondary mirror on the ANU 2.3 m telescope · Measures and adjusts image position at 30 Hz · Corrects image blur produced by turbulence in the Earth's atmosphere · Both the tip-tilt secondary mirror and the 2.3 m telescope were designed and constructed by RSAA ...

... Version: $Id: html-design.html,v 1.15 1994/11/26 19:53:43 connolly Exp $ . ... The HTML 2.0 Specification Review materials includes complete information on the HTML Working group of the IETF, the discussion of the HTML 2.0 specification, mailing list archive, and other supporting materials. ... JHU/APL's WWW HTML Developer's JumpStation - Page 1 . ... Gentle Introduction to SGML from the TEI guidelines. www-talk . ... There is also a hypertext archive. ... IETF Working group for HTML. www-html . ...

... Telescopes . ... The spectrograph is installed in the Nasmyth focus of the BTA telescope, the equivalent focal length is 186 m (F/31). ... The preslit device unit is marked by number 3. ... Fig. ... slit unit of the MSS, 4.1 ? ... The spectrograph slit unit consists of a mirror that redirects the light beam from the Z axis and from the calibration path at an angle of 65њ to the axis of the telescope focus into the slit, the order separation filter, the block of the slit and the shutter (Item 4 in...

RTT150 . ... This search system is designed for generating the necessary information on series of pointings (observations of each source consist of sets of exposures with different filters and sometimes with different exposure times) for observed sources. Search results appear at the separate page as a table with the following data: . DATE - real (not evening!) observations date (in YYYY-MM-DD format); . ... Bin - minimal CCD binning mode (may vary during the observations); . ...

... SSAU History . SSAU roadmap . ... Equipment testing began on January 4. ... The magnetometer Shtil-M No. 2 is equipped with six sensors that measure the magnetic field in different compartments of the device, fix electrical discharges and the impact of the space environment on the equipment functionality. ... The magnetometer Shtil-M No. 2 is the third unit of the series, which was created in SSAU Institute of Space Device Engineering led by Professor Nicholay Syomkin. ... e-mail: ssau@ssau.ru . ...

... LUMAM . ... ABOUT LOMO . ... MICROSCOPES . ... Home Products Microscopes Lumam . ... LUMAM™ microscopes include high-performance fluorescence filters specially developed by LOMO for fluorescence microscopy. ... It allows the attachment of all modules and components, such as the mechanical stage, condensers, objectives, filters, fluorescence cubes, mercury epi-illuminator and observation heads. ... The LUMAM Mercury Epi-Illumination is the standard light source system for research fluorescence. ...

This document discusses the conventions for combining region and table filters, especially with regards to the comma operator. Filter specifications consist of a series of boolean expressions, separated by commas. ... Region and table filters can be combined: foo.fits[circle(10,10,3),pi=1:5] or even: foo.fits[pha==1 (10,10,3),pi==2 (20,20,8,5)] In these cases, it is not obvious whether the command should utilize an or or and operator. ...

Gemini IV . S65-30431 (3 June 1965) --- Astronaut Edward H. White II, pilot of the Gemini IV four-day Earth-orbital mission, . floats in the zero gravity of space outside the Gemini IV spacecraft. ... and its white cloud cover. ... helmet is gold plated to protect him against the unfiltered rays of the sun. ... He is secured to the spacecraft by a 25-feet umbilical line . ... Astronaut James A. McDivitt, command pilot of the mission, remained inside the spacecraft. ...

... Rocket-Space Complex N1-L3 . ... launch vehicle N1 . and Lunar Complex L3 . designed under . ... Launch vehicle N1 was designed of three stages (A, B, V) connected with transfer compartments of a truss type and a core stage. ... The rocket was a package design with suspended, single-unit, spherical fuel tanks and multi-engine propulsion units on stages I, II, and III. ... Mass of payload delivered to the Earth orbit, . ... Launch mass, t . ... Official WEB-site of S.P.Korolev RSC Energia . ...

. Welcome to X-Ray WWW Server . at Sternberg Astronomical Institute . This page was designed by Sergey Nazin . Send questions and comments to leng@sai.msu.su

The design of IAO-Diploma has academic (conservative) style. ... The first row consists of three cells. ... Second cell - logo of EAAS - Galaxy, negative image. ... The second row consists of one cell, two lines. ... Second line - words 'International Astronomy Olympiad'. ... There should be a text in English with the name of the awarded student, his or her team, explanation of awarding including the degree of Diploma and the Number of the International Astronomy Olympiad like: Adam Kohl . ...

... Original Xiaomi Mi Position Activated Carbon Filter . Brand: Xiaomi . ... Package Contents: 1 x Original Xiaomi Mi Position Activated Carbon Filter . Цвет: узор черный/экрю . ... Цвет: серебристый . ... Цвет: серый . ... Пол: Женский . ... Цвет: Синий . ... Пол: Для девочки . ... Джинсовая куртка темно-синего цвета марки MAYORAL для девочек. ... Цвет: белый . ... Цвет: Черный . ... Пол: Мужской . ...

Improvement and New Results of the Laser Time Transfer on MEO satellites Meng Wendong, Zhang Haifeng, Yang Huafeng, Chen Wanzhen, Wang Jie, Ivan Prochazka , Zhang Zhongping Shanghai Observatory, CAS China Academy of Space Technology Czech Technical University Goals of Laser Time Transfer ( LTT ) · Evaluate the performance of the space rubidium clocks with respective to the ground hydrogen maser, dedicated for the Compass ...

... Main . ... The RadioAstron is an international space VLBI project led by the Astro Space Center of Lebedev Physical Institute in Moscow, Russia. ... List of organizations which were taken part in developing of the project and now support the RadioAstron mission is presented here . The RadioAstron Newsletter # 29 , July 18, 2015. RadioAstron Announcement of Opportunity - 4 for observations from July 2016 to June 2017 inclusive. ... 2.7, December 17, 2015 : English version. ... Main ASC . ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...