... 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 Unit Telescopes Overview - This page is outdated, an update is in process.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 Secondary mirror (M2 Unit) - This page is outdated, an update is in process.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 Coating Unit - This page is outdated, an update is in process. ...

... Дни открытых дверей к юбилею САО РАН (12-14 апреля 2016 г.) . Международная конференция "Dark Ages and White Nights (Spectroscopy of the CMB)" (20-24 июня 2016 г.) . ... Международная конференция MULTI-SPIN GALAXIES - 2016 (26-30 сентября 2016 г.) . Международная астрономическая конференция "Физика звезд: от коллапса до коллапса" (3-7 октября 2016 г.) Архив . ... Подробнее.. ... 10.02.16 . ... БТА в реальном времени . ... Цейсс-1000 в реальном времени . ... Последнее обновление: 22/03/2016 ...

Astronomy Picture of the Day . ... Credit: HIROC-LPL , MRO, JPL-Caltech , NASA Explanation: HiRISE - the High Resolution Imaging Science Experiment - rides on the Mars Reconnaissance Orbiter ( MRO )spacecraft just arrived in Mars orbit on March 10. This sharp view of the martian surface from the HiRISE camera includes image data with a full resolution of about 2.5 meters per pixel - recorded from a range of 2,500 kilometers. ... Victoria Crater on Mars . ... Inside Victoria Crater on Mars . ...

. S ayan s pectrographic . c osmic r ay c omplex . пСЯ . Eng . Irkutsk (475 meters) . Irkutsk (2000 meters) . Irkutsk (3000 meters) . Cosmic rays variation . Atmospheric pressure . Year . Month . Day . Hour . Minute . From . To . Resolution . Type of Data . 1 year 1 month 27 days 1 day 12 hours 6 hours 1 hour 15 min 10 min 5 min 1 min . Corrected for Pressure Atmospheric Pressure Uncorrected for Pressure . Old version . Links

... We can help students grasp the significance of Hubble's extremely keen eye, and learn a bit about angles and math in the process, with the following in-class activity. ... Looking through binoculars or telescopes allows us to magnify a small section of the sky. To measure sizes or distances in that small section, astronomers divide a degree into 60 smaller pieces called arcminutes, and further subdivide minutes into 60 smaller sections called arcseconds. ... 30 feet = . ... 36 seconds . ...

... Wide Field Imaging . ... Student Research . ... Imaging/Photometry . ... Fast Imaging . ... 0.4 meter . ... Grating blazed for 1 micron . ... Sky: 4.2"/fiber . Spectrum: 0.069?/pixel . Sky: 8.06 '/mm . Spectrum: 163 ?/mm . ... 1024 x 1024 . ... 6.09 microns . ... Class 1 . ... Research use . ... Research . ... Space Technology Research . ... Wide field color imaging . Imaging and photometry . ... Imaging . ... Spectrum: 96,000 (0.069 ?/pixel) . ... 25,000,000 e- . ... 10 seconds . ...

Astrophotography Forum Message . ... The resolution of a CCD camera does not depend on the number of pixels in the camera, rather it depends on the size of the pixels making up the chip and the focal length of the lens forming the image. ... A larger chip made from the same substrate will have identical pixel sizes, just more of them. ... With a fixed focal length telescope we don't have that luxury, in which case smaller pixel size rather than larger chip size is the only way to increase resolution. ...

Galileo clear filter image of asteroid 951 Gaspra taken 10.5 minutes before closest approach. ... Galileo, 0107318.26) . ... Central Latitude/Longitude (deg): N/A . ... Instrument: Solid State Imaging CCD Camera . ... Instrument Field of View (deg): .46 x .46 . ... Illumination Incidence Angle (deg): N/A . Phase Angle (deg): N/A . ... NASA Image ID number: N/A . ... Code 633, NASA Goddard Space Flight Center . Greenbelt, MD 20771, USA . ... Code 630, NASA Goddard Space Flight Center . ...

. These low-resolution radar images of asteroid 2007 TU24 were taken over a few hours by the Goldstone Solar System Radar Telescope in California's Mojave Desert. Image resolution is approximately 20-meters per pixel. Next week, the plan is to have a combination of several telescopes provide higher resolution images. NASA/JPL-Caltech

... CorMASS (Cornell Massachusetts Slit Spectrograph) is a low-resolution (R~300) prism cross-dispersed NIR Spectrograph. It has been used on the Palomar Observatory 60-inch telescope, the Vatican Observatory 1.8-meter telescope, and the Magellan 6.5-meter telescope but resides at APO until further notice. ... A remotely operated flip mirror allows the use of a slit viewing mode for object placement on the 5.5 x 0.75 arcsecond slit. ... Field of View: 0.75" x 5.7" in slit mode, 10" in slit view mode . ...

... In combining the data, it is assumed that the low resolution image better represents the short spacing data, whereas the high resolution best represents the fine structure. ... Key: out The output image. ... Key: factor The flux calibration factor. ... In practise, the calibration may not be perfect, and an extra calibration factor will be required to align the flux scales. "factor" gives the factor to scale the low resolution image to put it on the same flux scale as the high resolution image. ...

... Five Lunar Orbiter missions were launched in 1966 through 1967 with the purpose of mapping the lunar surface before the Apollo landings. ... The first three missions were dedicated to imaging 20 potential lunar landing sites, selected based on Earth-based observations. ... The Lunar Orbiters had an ingenious imaging system, which consisted of a dual-lens camera, a film processing unit, a readout scanner, and a film handling apparatus. ... Launched: 04 May 1967 . ... Objective: Lunar mapping mission ...

... The MROI makes use of optical interferometry, much like COAST . ... As a major collaborator, the Cambridge Astrophysics Group is currently developing some of the mechanisms below, specifically the delay line and the fast tip-tilt system. ... Fringe tracking is used to control the positions of the delay line trolleys to make sure the light beams from the different telescopes in the MROI arrive at the science camera beam combiners in phase so that an interference pattern can be produced. ...

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

... The calibration of astrophysical spectra in wavelength based on calibration lamp data suffers from different kinds of uncertainties. Besides inaccuracies in the observational phase, common data reduction practice adds ``pixelation'' errors, due to the fact that the centering method does not use the correct PSF. These model mismatch errors depend, for a given feature, on the sub-pixel location of the line center (David & Verschueren, private communication). ...

. This diagram illustrates the relationship between the reference pixel and device pixels (called "dots" below). The image depicts a high resolution (large dot density) laser printer output on the left and a low resolution monitor screen on the right. For the laser printer, one square reference pixel is implemented by 16 dots. For the monitor screen, one square reference pixel is implemented by a single dot. Return to image.

... 8, ``Celestial Mechanics'', 2002 High orbit for the RadioAstron project N. S. Kardashev, B. B. Kreisman, Yu. N. Ponomarev Astro Space Center of the Lebedev Physical Institute, Moscow, Russia RadioAstron project is an international collaborative mission to launch a free flying satellite carrying a 10­meter radio telescope in elliptic orbit around the Earth [1,2]. ... For RadioAstron mission it is proposed to use one K­band circular polarized chan­ nel at fixed frequency 22.232 GHz. ...

... Resolution to be issued: . For reports, received before June 11: not later than 15 days after receiving . For reports, received on June 12-21: not later June 27 . For reports, received on June 22 - June 27: not later July 27 . For reports, received on June 28 - July 16: during the week July 26-30 . For reports, received on July 17-31: not later 4 weeks after receiving . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the International Astronomy Olympiad (IAO) . ...

HIGH RESOLUTION IONOSPHERIC MASS SPECTROMETER P-11 . ... Onboard mass-spectrometric equipment for study of neutral and ionized components of Earth upper atmosphere. Mass-spectrometer P-11 is one of P-series modifications of the on board radio-frequency monopole spectrometers. ... The instruments of P-series have passed successful approbation in space experiments aboard geophysical rockets MP-12, launched for investigation of Earth upper atmosphere (Ref. ... Measured mass number range, AMU - 1.. ...

. Next: To both compress and Up: *display, xdisplay, xexamine* - Previous: *xdisplay* - Image Display . Display just the section of interest: . tv> xdisplay ``xdata$rp110590.qp[6700:7200,9100:9600]'' # range of x coord is 6700-7200, # range of y coord is 9100-9600. rsdc@cfa.harvard.edu . 1998-06-10