... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

... This plug-in enables you to add various types of lighting effects to your (RGB) image. ... Directional light . ... Well, you get the idea :) The default settings for this light-type is [-0.5,-0.5,-1.0]. ... Higher values makes your image reflect a lot of light (appear lighter or more intense), while smaller values makes it appear more dull or matte. ... A value of 1.0 makes your image very shiny (bright high-lights) while smaller values makes you image less shiny, making the high-lights dimmer. ...

... The concerns here are similar to those for observing bright targets; saturation and blooming of the bright companion PSF must not impact the faint target. Also, one may need to consider subtracting the PSF of the bright object, and effects which limit the accuracy of that subtraction. If the bright companion will saturate and bloom, it will be necessary to rotate the CCD so that blooming along the CCD columns does not obliterate the faint target. ...

... For high spectral resolution observations the devices permanently located at the N2 focus of the BTA are used (Klochkova, 1995, Panchuk, 1995). However for a number of tasks to be performed, it is needed to rule out the influence of the second and third mirrors, i.e. to realize the high spectral resolution ( ) directly at the prime focus. ... Examine the principal parameters of the PF echelle spectrometer, which is equivalent in spectral resolution to the CCD-equipped MSS (Panchuk, 1995). ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : "We're light years more advanced than our competition!" ... Even the closest astronomical object, the Moon, is 400,000 kilometers away! ... A beam of light will travel 9,500,000,000,000 kilometers in one year. This distance is defined as a light year ; the distance light travels in a year. ... This is another example of Bad Astronomy; like a light year, a parsec is a unit of distance, not time (to be specific, it equals 3.26 light years) . ...

SAS home . SAS Watchout items . ... This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, subtracting the background and correcting for exposure loses. ... The SAS task barycen performs this correction. ... If the following files are available: a) RGS event list; b) RGS source list, a call to the task performing light curve extraction, correction and background subtraction rgslccorr allows a user to create the light curve. ...

A satellite view of the COAST telescope . ... How the COAST telescope works . ... Four telescopes are focused on the object of interest and the image from each telescope passes through aluminium tubes into the beam combining building . ... The incoming light is reflected from the siderostat mirror onto the primary mirror, which focuses the light on a small mirror. ... Part of each light beam is used in the guiding system which makes sure the telescopes are kept pointing at the object of interest. ...

... Monitoring M2-9 . ... About 2,100 light-years away and over one light-year across, M2-9 is known as a twin jet or butterfly nebula in reference to its striking bipolar symmetry. ... Of course M96 is a spiral galaxy, and counting the faint arms extending beyond the brighter central region it spans 100 thousand light-years or so, about the size of our own Milky Way. vdB 152: Reflection Nebula in Cepheus . ... Reflection nebulas reflect light from a nearby star. ... Looking Back at an Eclipsed Earth . ...

Direct Electron Imaging Using Back Thinned CCDs . ... A proximity focused Gen III image intensifier has been built using a back illuminated 512 x 512 CCD in place of the phosphor screen. Signal to noise, spatial resolution, minimum resolvable signal and life are discussed. ... Very low light level imaging is driven by the need for high quantum efficiency detection of single photons at the highest possible speed and the highest spatial resolution. ...

... Following the Observatory's initiative in 2002, drawing attention locally to the issue of light pollution and the problems it produces both for astronomy and awareness of the night sky, and for saving energy and improving the natural environment, Mark Bailey made a presentation on light pollution, on 7 May 2003, to the Armagh City and District Council Environment, Health and Recreation Committee. This focused specifically on the growing problem of light pollution in the City of Armagh. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Power Supplies and Adapters . ... Meade #607 DC Power Cord w/Cigarette Lighter Adapter . ... Meade #607 DC Power Cord w/Cigarette Lighter Adapter #07043. Lets you power most Meade models from a car cigarette lighter style power socket. ...

... OF NICS . ... NICS FIRST LIGHT . ... The Near Infrared Camera Spectrometer ( NICS ) has been installed in the week 11-17 September 2000 at the TNG Nasmyth A focus. ... NICS is a DRO camera for infrared imaging and spectroscopy operating in wavelength range between 0.9 and 2.6 microns and is equipped with an Hawaii 1024x1024 detector. In imaging mode the platescale can range from 0.25"/pixel to 0.04"/pixel (with Adopt@TNG) correspondig to a field of view ranging from 4.2'x4.2' to 0.7'x0.7'. ...

. Album : asv-album :: Technical photos :: a80tests ::Manual and automatic focusing . Up . IMG 0926 . IMG 0927 . IMG 0928 . IMG 3036 . IMG 3037 . IMG 3038 . IMG 3039 . IMG 3040 . IMG 3041 . IMG 3042 . IMG 3043 . Created with the tool album generator a Marginal Hack by Dave on Mon Jan 19 20:23:20 2015 .

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... Тип: бра, . ... Настенные светильники и бра . ... title='Комбинезон Merri Merini 3-6 месяцев Blue Strip MM-02B' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . ...

... Plate bending . ... The plug-plates of SDSS project are responsible for locating the optical-fiber plugs spatially and for defining the plug tilt with respect to the surface of best focus. ... It can be seen from the graphs that after bending the plate and adding a central suport, the curvature of the plate was quite near that of the desired Kent005 curve. ... Upon adding a central support, however, the slope of the plate decreases to a value slightly less than that of the Kent005 curve. ...

Figure 2 Microcalorimeter resolution example. The two pannels in the plot show histograms of the filtered pulse heights that result from left: random samples of the microcalorimeter voltage (a measure of the intrinsic detector resolution) and right: pulses from the absorption of Mn K-alpha x-rays. The smooth curves are gaussian profiles with the FWHM as labeled; in the right pannel the gaussian profile has been convolved with the shape of the Mn K-alpha x-ray line doublet. ... 617) 495-7062 . ...

... 1999: . A new fiber multiobject spectrograph of the prime focus of the BTA was manufactured, designed for the spectroscopy of low and moderate spectral resolution of up to 70 objects at once, visible in the telescope's field of view sized 12'. ... The new spectrograph brought an opportunity to explore the objects with absolute magnitudes m=22-23 in the R-band. In 1999 the spectrograph was used for the BTA observations within two programs. ... Archive . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

The McDonald 30-inch Prime Focus camera (f/2.98) uses a thick, front-side illuminated Loral-Fairchild 2048x2048 CCD with a Metachrome II coating. ... Hence, placing a 2048x2048 CCD at the Prime Focus would result in an angular field of view of approximately 1 square degree. ... These kinds of galaxies, previously unknown, represent a new population of objects that has recently been discovered by members of our team (see May 1994 issue of Discover magazine) using wide field CCD imaging techniques. ...