High resolution IR-spectrometer . ... Determination of concentration of atmospheric greenhouse gases (carbon dioxide and methane) from ground-based or spacecraft platforms. ... Compact eschelle spectrometer is built by autocollimation scheme with diffraction grating operating in high orders of diffraction, allowing thereby to reach the resolution up to ?/ 20 000. ... For observations at the ground-based platforms and aboard the ISS the instrument modification RUSALKA will be used. ...

... In principle, two observers on the ground can tell, by comparing the position of the same auroral arc against the background stars. ... The display stretches across Canada; just below it, in the middle of the picture, are the lights of Chicago, next to Lake Michigan. ... The Canadian scientific satellite Isis-2 (1971) carried an auroral imaging camera and discovered the diffuse aurora, a broad ribbon around the auroral oval, too spread-out to be noticed from the ground. ... Auroral Acceleration . ...

... 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 . ...

. 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.

... An Annular Solar Eclipse at High Resolution . ... The event was not a total eclipse of the Sun for any Earth-bound sky enthusiast but rather, at best, an annular eclipse , where the Moon blocked most of the Sun. ... NASA Official: Jay Norris. ... Публикации с ключевыми словами: annular solar eclipse - prominence - кольцеобразное солнечное затмение - Протуберанец . Публикации со словами: annular solar eclipse - prominence - кольцеобразное солнечное затмение - Протуберанец . ... Протуберанец . ...

... 2005 October 5 . Annular Solar Eclipse at High Resolution . ... The event was not a total eclipse of the Sun for any Earth-bound sky enthusiast but rather, at best, an annular eclipse , where the Moon blocked most of the Sun. ... Those who witnessed the solar eclipse from a narrow path through Portugal , Spain and Africa , however, were lucky enough to see the coveted Ring of Fire , a dark Moon completely surrounded by the brilliant light of the distant Sun. ... About APOD | ...

... We give evidence that lower pressure model chromospheres can alos reproduce the Balmer line profiles, but give Lyman surface fluxes overestimated by more than an order of magnitude. ... We obtain the Paschen lines in emission and Paschen decrements as large as 41 for Pa$_{\beta}$. ... Formation of all Hydrogen series is collisionally controlled and takes place in a rather thin layer at the top of the chromosphere (Balmer, Paschen, and Brackett) or in the transition region (Lyman). ...

... Josephson junctions with ferromagnetic barriers were fabricated and studied [1] for their ground state change from 0 to : IS=ICsin() to IS = ICsin(+), where IS is superconducting current, IC critical current, is the phase difference of pair potential between superconducting electrodes. ... To investigate the origin of the zero voltage current for our hybrid heterostructures we applied microwave radiation and studied the ac Josephson effect. ... Fig. ... Both junctions are 50 µm in size. ...

GRIZLI Science Performance Goals Includes also some performance goals for telescope and software 16 October 2011 A. Instrument specs 1. Delivered image quality, in each filter, across entire FOV Goal: 0.5" FWHM, with well-behaved PSF, at high altitude (low airmass) 2. Limiting magnitude Goal: 26th mag in griz gives S/N=10 in 3 min exposure sky-limited in all filters with no moon 3. ... Fringing Goals: (for 3 min exposure) - less than 1% in i - less than 5% in z 8. ...

... TELESCOPE MEADE LS ACF 6' - Etat neuf . ... ТК SystУ?me optique : Advanced Coma-Free (ACF) . ... ТК DurУ?e d'utilisation avec les piles : 3 Уљ 5 heures . ... ТК Fonction GO TO vers l'un des 100 000 objets cУ?lestes stockУ?s dans la base de donnУ?es ou Уљ partir des coordonnУ?es cУ?lestes de n'importe quel objet cУ?leste avec une prУ?cision de 5 minutes d'arc. ... ТК Roue dentУ?es de 125 mm sur les deux axes pour un suivi prУ?cis des objets cУ?lestes et pour permettre l'astrophotographie. ...

Orbit . ... The orbit of the RadioAstron provides four types of study: . rough images of radio sources with ultra-high angular resolution, using all baselines up to the radius of the apogee, that is much larger than Earth diameter; . ... high quality imaging of radio sources, with moderate resolution, by observing either with small projected base lines Earth-spacecraft, i.e. close to the orbital plane, or near the perigee. ... high accuracy orbit determination. ... Space Radio Telescope . ...

... Opportunityт??s devilish view from on high . ... Does temperature have an upper limit like the lower limit of absolute zero? What's the highest measured value? ... The universe s absolute high temperature correlates to the energy and heat that existed during the Big Bang. ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

. Andrey Kravtsov "High-Resolution Cosmological Simulations of Cluster Formation" . < FIRST ] [ PREVIOUS ] [ MAIN . Slide 17 (of 17) .

. Discovered initially by SkyMapper, SMSS J031300.36-670839.3, is a sub-giant halo star, found from a high resolution blue MIKE spectrum to have an undetectable Fe abundance and overabundances of C, Mg, and Ca, relative to Fe. We recently obtained 29 UVES spectra extending to 3060 Angstroms which has enabled us to measure the oxygen abundance from the OH lines, and lower the 1D, LTE Fe abundance limit to [Fe/H] .

... Events . ... Occultations by Kuiper Belt Objects . ... Thursday, Jun 11, 2009 at 8:00 PM . A stellar occultation occurs when a solar system body passes between a star and an observer. ... The atmospheres of the major planets, three of the four planetary ring systems, and numerous asteroids have been probed with stellar occultations. ... With stellar occultation data we can also probe for close companions and possible tenuous atmospheres. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Dr. Phil Plait , aka "The Bad Astronomer" . ... Images . ... Bad Astronomy site . The following are high-resolution images suitable for promos, newspapers, brochures, and the like. Clicking on the thumbnail image will bring up the high resolution image. High resolution (1.3 Mb) . Medium resolution (550 kb) . ... Dr. Plait giving a TV interview at NASA's Goddard Space Flight Center about the transit of Venus in 2004. ... Dr. Plait posing with a model of the Apollo 11 landing site. ...

... The defaults for each variable are: MinSpareServers 5 MaxSpareServers 10 StartServers 5 There is an absolute maximum number of simultaneous children defined by a compile-time limit which defaults to 256 and a "MaxClients" directive which specifies the number of simultaneous children that will be allowed. ... If you need more than 256 simultaneous children, you need to modify both HARD_SERVER_LIMIT and MaxClients. In versions before 1.2, HARD_SERVER_LIMIT defaulted to 150. ...

The Astronomy Shop . ... AstroGuide | ... Shop | ... Posters | The Andromeda Galaxy - High Resolution Poster Image (Paper Edition) . ... This poster is also availiable in a laminated edition - see The Andromeda Galaxy (laminated). ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Date: Thu, 12 Apr 2007 18:15:45 +0200 (MEST) From: Alessandro Marconi <marconi@arcetri.astro.it> To: boch@sai.msu.ru Subject: Summer school on AGNs and VLTI Dear Colleague, here is the first announcement and call for applications for a VLTI summer school on "Active Galactic Nuclei at the highest angular resolution: theory and   observations". ... It is supported by 15 EU member states, including new member states, and thus integrates the entire European optical interferometry community. ...

To see a Russian version of this page, click here . ... Graduated from Moscow State University (MSU), Faculty of Physics in 1976. Ph.D. degree - 1988, MSU. Main field of scientific activities: photometric investigations of various stars, close binary stellar systems and other astronomical objects, including research with use of fast photoelectric photometry with a high time resolution till 1 millisecond. ... New portable photometer . ... Send your mail to: tem@sai.msu.ru ...