... 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 ...

Solar High Resolution Studies . ... Solar Group . ... High Resolution Studies . Small Scale Activity . ... High resolution observations at different heights in the solar atmosphere have emphasized that there is no such thing as a "quiet" Sun (e.g. Schrijver et al., ... This, and the temporal coincidence of other signatures, supports the idea that microflares are indeed just miniature flares, but that one needs a very high resolution in order to observe them (Cauzzi et al., 2003, in preparation) . ...

... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...

As the Universe expands, gravity pulls on the Universe, and slows the expansion down over time. As we look to great distances, we are looking back in time. If we can measure how fast the Universe is expanding in the past, and compare it to how fast it is expanding now, we can see the total gravitational effect of all matter in the Universe. Here we plot the distance between two galaxies as a function of time. ... Universes with lots of material . ...

Electron Bombarded, Back-Illuminated CCD Sensors . ... EBCCD PERFORMANCE: EBS Gain . ... To the first order, the signal gain in the EBCCD is proportional to the kinetic energy of the photoelectrons prior to their impinging on the CCD back surface. ... To obtain EBS gain in the active material, it is necessary for the photoelectron to enter the pixel from the back surface of the CCD -- away from the gate structures that dissipate the electron energy. ... The EBCCD EBS gain was tested using two methods. ...

... Because of the Sun 's UV radiation, Earth 's upper atmosphere is partly (0.1% or less) ionized plasma at altitudes of 70-1500 km. ... Around the plasma density maximum (F-layer, see below) a so-called ionospheric waveguide is formed for magnetosonic waves . ... It is interesting to note that this works also the other way round and, for example, the auroral kilometric radiation created by the precipitating particles high above the ionosphere does not reach the ground because of the ionospheric E...

Astronomy Picture of the Day . Aurora Over a Communications Tower . ... Aurora light results from energetic electrons and protons striking molecules in the Earth's atmosphere. The Great Nebula in Orion . ... Fornax Cluster in Motion . ... Earths North Magnetic Pole . ... A magnetic compass does not point toward the true North Pole of the Earth. Rather, it more closely points toward the North Magnetic Pole of the Earth. The North Magnetic Pole is currently located in northern Canada. ...

Next: Particle Background Rejection Up: Detection Efficiency Previous: Front Illumination . ... The method requires that the CCD substrate be etched from the rear towards the depletion layer boundary. The device can be illuminated through this rear surface, which has a much thinner dead layer than the electrode side. ... The corresponding detection efficiency data are presented in Figure 7, and compared with the predicted data for a 20 m thick depletion layer. ...

... Hidden Hollow 2008 . ... inside the Lodge . ... one of the cabins . Sky High Lodge . ... Q: What about the cabins? ... Q: What should I bring if I plan on staying inside a cabin? ... Q: What are the bunkhouses? Our bunkhouses are just what the name implies - a large area filled with clean beds with flushing restrooms and hot showers in the basement area. For single guests, this is a preferred area since cabins suit large groups or families. ... Q: What is Sky High Lodge? ...

... IONOSPHERIC DATA IN THE INTERACTIVE SPIDR SYSTEM . ... The Ionosphere The ionosphere is that part of the upper atmosphere where free electrons occur in sufficient density to have an appreciable influence on the propagation of radio frequency electromagnetic waves. ... These regions may be further divided into several regularly occurring layers, such as F1 or F2. ... E Region: The region between about 95 and 150km above the Earth that marks the height of the regular daytime E layer. ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Jupiter . ... Observing . ... Sky this Month . ... Opportunityт??s devilish view from on high . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... What causes the highly differentiated color banding on Jupiter? ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

I'm glad you're interested in collaborating on the ConcepTests for Astronomy WWW database project! ... Paul . ... a) high luminosity, high temperature to low luminosity, low temperature . b) high luminosity, low temperature to low luminosity, low temperature . c) high luminosity, low temperature to low luminosity, high temperature . d) high luminosity, high temperature to low luminosity high temperature. ... Back to Paul Green's Peer Instruction page. ... Back to Paul Green's HomePage . ...

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

. Album : asv-album :: Travels to distant places and countries :: 1996/05 Chalkidiki (Greece) :: Thessaloniki. I was only several hours in the city . Up . Alexander the Great. Not very impressive, especially from the back :-) . Next >> . Album created by album generator a script written by David on Tue Jun 23 14:46:02 2015 .

. Balloon Glow: January 13 Evening . Following dinner with Dave in High rolls, the crew set up for the balloon glow in Alamogordo Saturday night. About 12 balloons participated including ours and it was great! . The Balloonist Prayer . The Winds have welcomed you with softness, . The Sun has blessed you with its warm hands, . You have flown so high and so well, . That God has joined you in your laughter and . Set you gently back into the loving arms of Mother Earth.

... This CDS image shows material streaming back at high velocity onto the disk after the eruption. The left image shows intensity, while the middle and right show the Doppler velocity and width respectively. The blue color of the middle image represents material moving at greater than 200 kilometers per second. In the right image, the unresolved motions represented by the Doppler width reach as high as 300 kilometers per second. ...

caption Moon Image Tx­pic Asteroid images Education/outreac REU : some details How many years any great results (photos of past AAS presentations). PRE­DOC: AOVEF Mol. ... Astro­highlight (Pulsar ­ pic etc/ pix of backends) Astro­highlights (piX/plots/instruments) Pic. of an observer at the control room/CIMA A remote obser ver ­ emphasis on 6­8 GHz Rx (phil's spec.) ... A stylized drawing/photo of the telescope in the back ground with AO/NAIC on top ALFA Emmanuel's ULIRG image .. ...

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. ...

... In a solar prominence, charged particles stream up from the Sun, spiraling around magnetic field structures poking out of the solar surface, and ultimately fall back along those structures into the Sun. ... As evolution would predict, animals' eyes sense the colors of light emitted most strongly by the Sun. ... The tiny Moon can completely cover the disk of the Sun, blocking most of the emitted visible light, and reveal the Sun's faint outer atmosphere called the corona...a mass of incandescent gas ...