... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

. To you, the user, it appears as though there is only one type of file in UNIX - the file which is used to hold your information. In fact, the UNIX filesystem contains several types of file. Ordinary files . Directories . Special files . Pipes .

Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...

Seven months ago, on Mar 19, 2008, at 09:12 Moscow time, a new star appeared on the sky. The Sun had already risen over the Russia, but people of the Western hemisphere might be able to see by their eyes a faint starlet near one of Bootes constellation stars. This starlet appeared and faded by an order of magnitude in a minute. Astronomers named it GRB080319B or, informally, the Naked-Eye Burst, as it was twice as bright as human eye can see a star. ... Royal Astronomical Society . ...

... V838 Mon is a member of a new class of eruptive variables which appear as a peculiar novae having late K-M type spectra in their outburst. Before its outburst, it was a wide binary system of B3V type stars. ... The B3V companion was seen in the outburst in the UV spectrum taken with HST (Rauch et al., ... In the latest spectra, the light of B3V companion was predominating in the short-wave photometric bands. ... CCD blue frames of V838 Mon before the eclipse (left) and in the eclipse (right). ...

... Roger Ritenour Title : Earth Filename : Earth.wad Author : Roger Ritenour Emale Address : ritenour@mail.comet.net Description : Ten level episode replacement for first episode of Hell on Earth. ... Play Information * Episode and Level # : Map01-Map10 of Doom II Single Player : Yes Cooperative Player : Yes (untested) Deathmatch : Yes (untested) Difficulty Settings : Yes, full range, all settings are slightly more difficult than standard Doom settings. ...

... Circumstellar disc of beta Pictoris: constraints on grain properties from polarization. To appear in the Astronomy & Astrophysics . abs , src , ps ] . ... Dust influx to Titan from Hyperion . ... abs ] . ... Characteristics of bulges and disks in interacting galaxies . ... Dust grains around Herbig Ae/Be stars: porous, cometary-like grains? ... To appear in the Astronomy & Astrophysics Supplement . ... Finally, Links may lead you to more options (e.g. via the LANL preprint system). ...

... It is shown that this approach allows one to qualify and visualize some major trends characterizing the current astronomical literature: multi-author collaborative work, the impact of observational projects and thematic maps of publishing authors. ... 1997). The latter functionalities (called data mining functionalities) result from data analysis, data evolution analysis and data correlation principles and allow one to discover a priori unknown knowledge or information (Shapiro et al. ...

... Meta Index / Home Page / Errors . ... warning . ... For instance, if the PROPOSAL information record is missing the user can add a fake one to the SOSF without this having any effect on the data reduction. corrective action: Continue. ... For a certain exposure in the ODF one of the parameters was not found in the housekeeping data. ... RGS, EPN, OM : the current exposure is found to contain more than one distinct calibration mode. corrective action: In the summary file: MODE = UNDEFINED . ... error...

Solar Large-Scale Chains: Some Events . ... The chains appear to light up separators or quasi-separatrix layers between different interacting large-scale magnetic flux systems in the global solar magnetosphere and, in particular, to outline large-scale coronal structures involved in the CME process. ... Some features of the chains and their relations to CMEs are illustrated for a number of halo CME-associated events. 23 events of 1997-2000 . ... Halo-CME-associated events of November 1997 . ...

... I 1968 Meudon France II 1969 Manchester United Kingdom III 1970 Dwingeloo The Netherlands IV 1971 Bonn (West) Germany V 1972 Bologna Italy VI 1973 Cambridge United Kingdom VII 1974 Onsala Sweden VIII 1975 Meudon France IX 1976 Torun Poland X 1977 Dwingeloo The Netherlands XI 1978 Manchester United Kingdom XII 1979 Puschino U.S.S.R. XIII 1980 Bologna Italy XIV 1981 Bonn (West) Germany XV 1982 Cambridge United ...

RTT150 . ... This search system is designed for generating the necessary information on series of pointings (observations of each source consist of sets of exposures with different filters and sometimes with different exposure times) for observed sources. Search results appear at the separate page as a table with the following data: . DATE - real (not evening!) observations date (in YYYY-MM-DD format); . ... Bin - minimal CCD binning mode (may vary during the observations); . ...

T O TH E EDITO R 247 DIMENSIONAL EFFECT IN A METAL IN MULTIPLES OF A CERTAIN MAGNETIC FIELD V. F. GANTMAKHE R Institute for Physics Problems, Academy of Sciences, U.S.S.R. Submitted to JETP editor May 18, 1962 J. Exptl. ... The thickness of the plate was 0.39 mm , the electron mean free path reached (1--3 ) x 10-1 cm at helium temperatures, and the skin-effec t depth was 10 - 4 cm at 1--5 MHz. ... 1 V. F. Gantmakher, JET P 42 , 1416 (1962), Soviet Phys. JET P 15, 982 (1962). ...

... Moon Phase below . ... ARTICLE: Why the moon always shows us the same face . ... Before you continue reading, you should know that this was not always the case, i.e. the Moon once was rotating with respect to the Earth, so that on every night a terrestrial observer (if there was one, because this was long, long before mankind appeared on our planet, and even before any major animals had appeared) saw another face of the Moon. ... Figure 1 (not to scale) shows how we can imagine the system Earth-Moon...

Astronomy Discussion Forums . ... Investigating Dr.Dick's Recent Revelations . ... Post Message | ... Now suppose a pattern just happened to appear after both shufflings (but in different places in the pack,say). ... So King,Jack also like stayed net-negative-shuffled to new location in pack for King,Jack. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Next: Descriptor NFILTCAR Up: Instrument descriptors Previous: Instrument descriptors . The two most critical types of physical information needed about the filters themselves are (1) what are their transmission curves? and (2) does the instrument either regulate or measure their temperature? ... In addition, we need to know how many different filter-code fields appear in the data. Bearing all this in mind, here are the descriptors for filters: . ... Mon Jan 22 15:08:15 MET 1996 ...

... sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue ;; *) if [ x $ src = x ] then src =$1 else # this colon is to work around a 386BSD /bin/sh bug : dst =$1 fi shift continue ;; esac done if [ x $ src = x ] then echo $0: no input file specified 2 exit 1 else : fi if [ x $dir_arg != x ]; then dst =$ src src = if [ -d $ ... IFS='%' set - `echo "$dstdir" | ...

Physicists have been honored by having their picture on currency in many countries around the world. ... Marie and Pierre Curie (Marie: 1867-1934, Pierre: 1859-1906) appear on the French 500 franc note. ... The greatest physicist of this century, Einstein not only invented the theories of special relativity (behavior of rapidly moving object) and general relativity (theory of gravitation), but made fundamental contributions to the beginnings of quantum theory. ... For a bio, click here . ... 100 K) . ...

... On Thursday, 11/12, Bill Boroski, Bob Nagel, Steve Bastian and John Davis continued to pursue the oscillation in the windscreen and lubricating the cone bearings. Bill was able to install the bar coder for the altitude drive. ... On Friday, 11/13, Charlie Briegel continues to work on motion controls. ... Bill has also installed the bar coder for the azimuth drive. And Steve along with Bob Nagel clean the bearings with mineral spirits in preparation for applying the new lubricant. ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...