... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . 32"/35.6", f/3.75 Cassegrain Schmidt. The ADH telescope was of the Baker-Schmidt C4 type, being designed by Professor James Baker of Harvard University (see Proc. Amer. ... The two- mirror and corrector system give a flat field and reduced tube length (168") compared with the classical Schmidt telescope (see H.C. King, "The History of the Telescope"). ... See also: A Short History of Armagh Observatory . ...

... 2015 June 28 . All the Colors of the Sun . ... Explanation: It is still not known why the Sun's light is missing some colors. Here are all the visible colors of the Sun , produced by passing the Sun's light through a prism -like device. The spectrum was created at the McMath-Pierce Solar Observatory and shows, first off, that although our white -appearing Sun emits light of nearly every color , it does indeed appear brightest in yellow-green light. ... About APOD | ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . Login . See many more Astronomy Listings by: Category or Alphabet . ... Listed Since August 20, 2005 . ... 541) 347-9467 or Toll Free 800-394-3307 . ... 541) 347-2611 . Web Site . http://hardin-optical.com/ . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

Daily Nightly" by Mike Nesmith Dark and rolling figures move Through prisms of no color. Hand in hand they walk the night But never know each other. Passion passed in neon lights Light up the jewelled traveler, Lost in scenes of smoke-filled dreams Find questions but no answer. ... Once again, such anxious men Find questions but no answers. ... Transcribed by bias1863@jade.saintmarys.edu [Does anyone know the questioned lyrics? ... We'd like to know!] ...

Karl Henize , the man who took the beautiful photograph of the Large Magellanic Cloud , was a NASA astronaut. Henize received his Ph.D. at the University of Michigan in 1954. In 1967 he left a full professorship at Northwestern University to join the Apollo astronaut corps. ... In 1994, when nearly 70 years old, he succumbed to hypoxia on a climb of Mount Everest and was buried on the mountain at 22,000 ft. ...

Methods of Spectral Classification of Stars by Spectrum Photos with Prism. Work with the Computer Program. Determination of Magnetizing Force in Sun Spot by Zeeman's Effect. Investigation of Telescope Optics by Hartmann Method. Investigation of Photoelectric Multiplier. Determination of Stellar Temperature by Method of Spectrophotometric Gradient. ... Investigation of Light Filters Transmission by Photoelectric and Photografic Methods. ... Investigation of Globulae. ...

... Spectroscopy for Everyone! Tom Field . Thursday, Sep 8, 2011 at 8:00 PM . ... However, until the last few years, spectroscopy has been too expensive and difficult for all but a few amateurs. Today, though, new tools make spectroscopy accessible to almost all of us. ... This will be our first web-talk, in which the speaker will be giving a live talk from a remote site (in this case, Seattle). ... Speaker Bio . ... Sep . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

ciao.par - CIAO Analysis System Preferences File #---------------------------------------------------------------------- maxinstances,i,h,3,1,10, Max number of instances of each application filtwin_init,s,h, imager ,imager|chips|prism|none,, Filtwin's prefered initialization point maxsavestates,i,h,0,0,20, Maximum number of filtwin save states to save in session save file (0 = all states) toolagent,s,h, ...

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. ...

... Information & tools for observers . ... A spectrograph is an instrument used to obtain and record an astronomical spectrum. The spectrograph splits or disperses the light from an object into its component wavelengths so that it can be recorded then analysed. ... Receivers used on radio telescopes can pick up thousands of bands in a given region of the radio band just as you could obtain by moving a radio dial through several stations and measuring the intensity of the received signal. ...

ST-ECF Instrument Science Report ACS-2006-02 Wavelength and Flux calibration of the ACS/SBC PR110L and PR130L prisms S. S. Larsen, February 2006 ABSTRACT Wavelength- and flux calibrations are presented for the ACS/SBC PR110L and PR130L slitless spectroscopy modes. ... Wavelength. ... Flux calibration Figure 5: Comparison of sensitivity functions for the SBC prisms derived from the inorbit calibration (solid curves) and the ground calibration from Bohlin et al. 2000 (dashed curves). ...

... Polarization spectrograms were obtained by two spectrographs (prism and echelle types) during the solar eclipse in Mexico on 7 March, 1970 near the region of the second contact at the heights 0.06 to 0.12 R| above the limb. ... A negative reproduction of the coronal spectra. (a) Spectrum obtained by two-prism spectrograph; exposure time 20 see; (b) Two parts of the first 7 sec spectrum near the green and red lines obtained by echelle spectrograph. ... ET height 1.08 R o was equal to 30_ 5%. ...

RECREATIONAL TELESCOPES . ... TELESCOPE ACCESSORIES . ... Astele™ 60, 70, 95, 133.5 . ... German Equatorial Mount for Astele™ 133.5, 150, 102MN . Astele™ 102MN, 133.5, 150 . ... German Equatorial Mount for Astele™ 180, 203,152MN, 203MN . ... Astele™ 95, 102MN, 133.5, 150, 152MN, 203MN . ... Photo Adapter for Astele™ 133.5,150,180, and 203 . Astele™ 133.5, 150, 180, 203 . ... Astele™ 60, 70, 95, 102MN, 133.5, 150, 152MN, 180, 203, 203MN . ... Eyepiece Adapter, 2" – 1.25", Astele™ 152MN, 203MN . ...

... Home Articles Choosing and Using Binoculars . ... Beyond New York City . ... Choosing and Using Binoculars . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... For instance, if you observe with a 7 x 50 pair of binoculars under a city sky, this is like observing with a pair of 7 x 35 binoculars. ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Сегодня: 10 апреля 2016 г. На этой неделе 24 января в Японии состоялся запуск ракеты H-2A, на борту которой находился спутник ALOS. ... Спутник ALOS (Advanced Land Observing Satellite), как следует из его полного названия, будет заниматься наблюдением поверхности Земли. ... Это один из самых крупных спутников с такой специализацией. ... Он может вести наблюдения поверхности земли днем и ночью при любых погодных условиях. ... Самый большой радиотелескоп займется крупномасштабной структурой Вселенной ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The sky is blue because it reflects light from the oceans. Good astronomy : The sky is blue because it is scattering blue light from the sun. ... So everywhere you look you see blue photons, except directly from the Sun, where you'll see all colors. ... The sky does not look blue near the horizon because more yellow photons (and even orange ones right at sunset) are coming from that direction as they get scattered away from the Sun. ...

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... arxiv/1310.0815 . Меню для черных дыр . ... Comments: Accepted to appear in Reviews of Modern Physics, 47 pages, 12 figures . ... Comments: 6 pages, 3 figures, to appear in the proceedings of the Societe Francaise d'Astronomie et d'Astrophysique (SF2A) 2013 (eds. L. Cambresy, F. Martins, E. Nuss and A. Palacios) . ... Comments: 9 pages, 12 figures, talk given at the 33rd International Cosmic Ray Conference, Rio de Janeiro 2013 . ...

... Pulsars offer a variety of observables for study of interstellar scattering. Observations of scattering of nearby pulsars and intra-day variable quasars point to the existence of a component of the interstellar medium (ISM) which has properties quite different from the more distant, diffuse ISM. ... The time series of electric field emitted by the pulsar is convolved with an impulse-response function due to scattering, when sampled at the observer plane [1]. ... Nearby interstellar scattering. ...

... We present software and hardware approach used to integrate a new CCD controller with the COAST as well as results from lab tests of the detector and controller. ... By using an EMCCD as the detector, it is simple to introduce spectroscopic capability to the COAST, dispersing a spectrum of interfered light across a single row of the detector, and reading the row out every 0.2 ms (5 kHz), as shown in Fig. ... We report on progress made on a GDFT for the COAST which uses the new EMCCD spectrometer. ...