... Sun images . ... Sun flares . ... Active areas . February : 2009 . ... No sunspots and sunspot groups can be currently observed on the Sun's surface . No H-alpha plages without spots can be currently observed on the Sun's surface . Last updated: February 10, 2009 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

... Dark Volcano Active on Io . ... 10.11.1997 . ... The inset frame of Jupiter 's most active moon was taken by the robot spacecraft Galileo in April. ... The new large black spot reveals that a volcano named Pillan Patera has been erupting during the interim. A vast moonscape roughly the size of Arizona has just been covered by some dark material. ... Publications with keywords: Jupiter - Io - volcano . Publications with words: Jupiter - Io - volcano . ... Jupiter s Clouds from New Horizons . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2001 October 16 . A Newly Active Volcano on Jupiter's Io . ... Explanation: Would a volcano plume discovered in January above Jupiter's Moon Io still be active months later? ... Careful inspection of the two images will show a newly prominent dark volcano surrounded by a light-colored ring visible only in the smaller, more recent image . ...

I added a new directory search to Zope, which returns the important fields for an individual user. ... I finished changes to the ldap search product and asked it to be moved to production. ... I ran some reports to track down our problem childrenin Active Directory. ... I'm working on a fix to the employee update sscript. ... The problem with the employee update script proved to be more elusive than I thought. ... I finished changing the employee update script to remove employees who have left. ...

... STScI-PRC99-13 HUBBLE CLICKS IMAGES OF IO SWEEPING ACROSS JUPITER While hunting for volcanic plumes on Io, NASA's Hubble Space Telescope captured these images of the volatile moon sweeping across the giant face of Jupiter. Only a few weeks before these dramatic images were taken, the orbiting telescope snapped a portrait of one of Io's volcanoes spewing sulfur dioxide "snow." ... Astronomers increased the color contrast and added false colors to the image to make the faint plume visible. ...

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... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... active galactic nuclei . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... They had expected to see impact craters like those on the other terrestrial bodies and from their number per unit area to estimate the age of Io's surface. ... This may have been the most important single discovery of the Voyager missions; it was the first real proof that the interiors of other "terrestrial" bodies are actually hot and active. ... A nalysis of the Voyager images led scienties to believe that the lava flows on Io's surface were composed mostly of various compounds of molten sulfur. ...

... Projects . Data transfer . ... PPTA projects and allocations . ... Time active (d) . ... Not active . ... PPTA data release 2 . ... unallocated Study timing noise in PPTA pulsars . ... unallocated Reprocess P140 data with PPTA pipeline . ... unallocated Consider the optimal observing strategy for PPTA pulsars . ... unallocated Application of cyclic spectroscopy to PPTA pulsars . ... Profile Domain Pulsar Timing: Developing and applying techniques to PPTA data. ... Tue, 24 Nov 15 03:36:53 +0000 . ...

Ganymede is the largest moon in our solar system, larger even than the planets Pluto and Mercury. ... Ganymede's surface consists of two main types of terrain: old, dark polygonal units, and young, bright valleys and ridges (see figure 11 ). ... In a similar way, hitting a large block of ice with a hammer makes white marks. ... Ganymede as seen by Voyager 2. ... Because Voyager couldn't spot any large impact craters, scientists have concluded that the moon's surface is young. ... Moon . ... Europa . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil La com†иte Chury toujours active . ... Cette photo prise le 1 er mars 2016, †а seulement 26,7 km de distance, met en †йvidence un beau jet de mati†иre qui s'†йchappe en bordure des r†йgions Imhotep et Bes, sur le lobe de l'h†йmisph†иre Sud de la com†иte. ... Etat du ciel ...

Galaxies are diffuse objects which are imaged against a background of finite brightness and noise. Galaxies which have the maximum contrast with respect to this background are the ones that are first discovered. ... These galaxies have been missed to date but active surveys for them are underway. ... In this page we present several examples of these newly discovered Low Surface Brightness galaxies as well as examples of high surface brightness galaxies. ...

... Цвет: синий . ... Материал верха: искусственная замша, текстиль . ... Материал подошвы: полиуретан . ... Кроссовки Zenden Active. ... title='Тепловая пушка Roda RP-5C' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . ... Туфли разработаны и произведены американской компанией Pediped, которая выпускает качественную и красивую обувь для детей. ... Декорированы туфли аппликациями из цветов. ... Туфли белого цвета марки Pediped серии Grip'n'Go для девочек. ...

... SAO RAN RATAN-600 EXCURSIONS 40 YEARS of R/T REFERENCES . ... GPS radio sources . ... Thursday, April 30, 10-00 . ... Friday, December 19, 10-30 . ... N. Bursov, V. Chaykin, A. Storozhenko "Preliminary results of RATAN-600 antenna measurements with the help of the geostationary Satellite Turksat 2A/3A". ... The basic results. ... Information-analytical system of estimating the parameters of radio sources in continuum with the RATAN-600 (the message for a conference, IPA St. Petersburg). ......

Table of Contents - Subject Index - Author Index - . Astronomical Data Analysis Software and Systems IX . ... Reduction of Adaptive Optics Images . ... GBT Active Optics Systems and Techniques . ... A User-Friendly Way to Optimize Adaptive Optics: NAOS Preparation Software . ... QuickLook Data Reduction Pipeline - Keck Adaptive Optics Real Time Data Reduction Software . ... NAOS Computer Aided Control: an Optimized and Astronomer-Oriented Way of Controlling Large Adaptive Optics Systems . ...

. Home . News . Gallery . Events . Twitter . Press Releases . Links . Contact Us . Calendar . Press & Web Coverage . Previous . Next . List . Deirdre Kelleghan kept observing the Sun and she sent us a new wonderful drawing: "Active Region 10999, June 20th 2008 13:45 UT; PST 40/8mmTVP eyepiece/50X upscaled by eye; soft pastels and graphite on black paper". Thank you, Deirdre! . Tuesday, 24 June 2008 01:52 . International Year of Astronomy, Ireland National Node . [Back To Top] .

... We have used a coupled dynamical and chemical model to examine the chemical changes caused by the passage of a density wave propagating into the protostellar cloud. ... The chemical coupling between gas and dust causes locally increased number densities of active ra dicals, such as C, N, O, NH, and OH, and hydrogen saturated molecules CH 4 , NH 3 and H 2 O. We show that chemical evolution in the post-wave gas can account for the observed abundance of water and NH 3 observed in interstellar clouds. ...

As a service to the astronomical community, we are recalibrating all archival Hubble Space Telescope Faint Object Spectrograph UV and optical spectrophotometry of active galaxies and quasars in order to extract uniformly calibrated spectrophotometric data for further detailed scientific investigations. ... NGC 4151 CLOUD F . NGC 5548 . ... NGC 4395 . ... NGC 4486 . ... NGC 4486 JET KNOT-A . ... NGC 4486 CLOUD-A . ... NGC 3031 . ... NGC 1068 . ... NGC 1068 CLOUD A . ... 1413+117A . ... NGC 4151 . ...

Mikhail TAMM (LPTMS, Paris-11 Orsay): "Clover-leaf structures in associating polymers: a toy model for RNA folding . The clover-leaf structures under discussion are defined as follows. The polymer is supposed to bear numerous sticky centers along the chain, these centers being capable of forming thermoreversible bonds with each other. ... Now, we say that some given structure belongs to the clover-leaf type if the archs on the corresponding diagram do not intersect each other. ...

... Pre-university education . ... Samara region . SSAU History . SSAU roadmap . ... Samara State Aerospace University (SSAU) will take an active part in the work of space activities of the United Nations organization (UNO). ... The road map shape on inclusion of Samara University into implementation of the UN Program on Space Applications was outlined at the roundtable discussion with the University teachers and specialists and at the meeting with SSAU Rector Yevgeniy Shakhmatov. ...