... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2011 September 5 . HH 47: A Young Star Jet Expands . ... A recent spectacular exception to this, however, is the supersonic jet in the star forming Herbig Haro 47. ... Studying how these jets evolve gives clues not only to how the star in HH 47 is forming, but how stars like our Sun formed billions of years ago. ... About APOD | ...

... Seasonal Streaks Point to Recent Flowing Water on Mars . ... Credit Copyright: NASA , JPL , U. Arizona Explanation: What creates these changing streaks on Mars? ... After much study , including a recent chemical analyses , a leading hypothesis has emerged that these streaks are likely created by new occurrences of liquid salty water that evaporates as it flows. ... Publications with keywords: Mars - water . ... NASAs Curiosity Rover at Namib Dune (360 View) . ... A Dark Sand Dune on Mars . ...

... Tonight's Sky . ... Sky this Month . ... Star Atlas . ... stars . ... The Sky This Week: April 1 - 10 . ... Observing springtime deep-sky objects with a large telescope . ... Why do some stars appear to flash a variety of different colors when you look at them through a telescope? ... So, Earthт??s atmosphere will bend some colors from especially bright stars more so than others, which makes the source look like itт??s flashing colors. Get instant access to subscriber content on Astronomy.com! ...

... 2000 September 6 . Emerging Planetary Nebula CRL 618 . ... ESAIC , HST , ESA , NASA . Explanation: CRL 618 may look to some like an Olympian declaring victory. ... Since then it has run out of core material to fuse and so has started to become a planetary nebula . In its current proto-planetary nebula phase, CRL 618 is evolving quickly, expelling hot gasses in complex jets and rings moving outwards faster than 700,000 kilometers per hour. ... About APOD | ... NASA Technical Rep.: ...

... September 17,2008 New parameter (removescatteredlight) is introduced to enable removing scattered light features by the task omgprep . May, 01, 2008 Modified the call to omgrism plot in order to produce the PostScript file with spectra extraction regions plotted over the grism rotated image. ... July 15, 2004: V1.0.7 Default options for the spectra extraction region are changed from 3 to 6 pixels to avoid the possibility of missing some of the spectra (SPR-3355) . ...

... HST . ... Cycle 24 Announcement . ... HST Overview . ... Astronomer's Proposal Tool . ... NASA and The Space Telescope Science Institute (STScI) are pleased to announce the Cycle 24 Call for Proposals for Hubble Space Telescope (HST) Observations and funding for Archival Research and Theoretical Research programs. ... The Astronomer's Proposal Tools (APT), which is required for Phase I Proposal Submission will be made available/released for Cycle 24 Phase I use during the 2nd week of February 2016. ...

... The HH flow associated with young stellar object HL Tau has an exciting history and even until now the origin of some its features is not clear yet. ... Knotty structures of Herbig-Haro jets are common phenomena and knowing the origin of such structures is essential for understanding the processes of jet formation. ... In the flow detected compact knots with high (-150 km/s) and bow shape structures in front of those, with low radial velocities (-50 km/s). ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . Monograph Publications . ... Publications of the ASP (PASP) . ... Mercury Magazine Contents . ... September/October 1997 . ... Instructors fret that no textbook is quite right, authors and publishers get shot down when they try to innovate, students count the days 'til they can sell back their unfriendly tomes. ... Astronomers have begun to rethink graduate education, and none too soon. ...

... Archives . ... X-ray summer school is on going. ... Recently I went to JSM 2007 and tried to attend talks about (bayesian) change point problems, which frequently appears in time series models, often found in economics. ... Tags: ARCH , Bayesian Block , challenges , change point problem , GARCH , light curves , summer school , X-ray . ... I received another type of changing point problem, defining a peak precisely, from a x-ray school student, who tried bayesian block but said it didn?t work. ...

... You are here: start €Ё difx €Ё difx2.0doco . ... difx:difx2.0doco . DiFX2.0 . ... The user perspective: new features . ... DiFX2.0 has had several important tweaks that improve efficiency on both the station-based and baseline-based side of processing. ... Making use of linear approximations to substitute complex multiplications for much of the trigonometric operations in fringe rotation, fractional sample correction and (new in DiFX2.0) the phase shifts for multiple phase centre correlations. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... The changebar (represented by two hyphens in the image) appears in the 10px space to the left of the paragraph. The illustration shows a vertical line that represents the left edge of the paragraph's containing block. ... The change bars (two red hyphens) appear to the left of the word "THIS", which begins the fourth line of text. The following PRE element simulates the example. Vertical bars represent the left containing block edge. ... to the left of the line containing | ...

To change your password: passwd Old password: enter your current password New password: enter your new password Retype new password: re-enter your new password . Enter the command passwd and then respond to the prompts by entering your old password followed by your new one. ... The passwords will not appear on the screen as you type, to prevent other people from seeing them. If you make a mistake, the message Mismatch - password unchanged. is displayed and your password remains unchanged. ...

OptInt PmWiki : Pm Wiki / Changes From Pm Wiki 1 . This page is intended to describe features of PmWiki 1.0 that have been changed or eliminated in PmWiki 2.0. ... ThisGroup:SideBar&action=edit Edit menu]] . ... action=post no longer exists -- posting a new page is now performed by using ?action=edit with the post control set to a true value. ... PmWiki's ReadPage() function no longer supplies default text for non-existent pages -- this is now decided by whatever functions need the page. ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 . ... In order to assist folks upgrading, we maintain a document describing information critical to existing Apache users. ... This document describes only the changes from 2.0 to 2.2. ... Your existing version 2.0 config files and startup scripts can usually be used unchanged in version 2.2. ... Many third-party modules designed for version 2.0 will work unchanged with the Apache HTTP Server version 2.2. ...

... NEWS . This is a list of new entries to the ESO Web Site within the last two months, August 2005 and September 2005. Subscribers to What's New in the ESO Web Notifier get an automated message of recent changes in the ESO Web . An archive of what's new entries is available. ... Take a look at: http://www.eso.org/observing/proposals/ . ... ESO 33/06 - Science Release: Astronomers, using ESO's Very Large Telescope, have for the first time made the link between an X-ray flash and a supernova. ...

Next: Scattering properties Up: Polarization properties (transmitted radiation) Previous: Linear polarization: wavelength dependence . Traditionally, the main problem considered in connection with circular interstellar polarization is the meaning of the wavelength where changes the sign . ... This is also demonstrated by Fig. 19 (lower panel) which shows the wavelength dependence of the factors of linear and circular polarization for particles of magnetite as was done by Shapiro ([ 1975 ]). ...

The Face on Mars . ... The Raw Images . Table 1: List of Viking Orbiter Images of the "Face on Mars" . ... Processing the Face Images . Table 2: Dimensions of Mercator Projected Images of "The Face on Mars" . Map Projected Images . ... Processing the "Face on Mars" Images . ... This page will provide interested persons with both the raw Viking images, transformed to GIF format, and a brief tutorial (with examples) of image processing techniques applied to create "better looking" images. ...

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

... Return to the Kernel page . ... Kernel . ... This article is part of the LWN Porting Drivers to 2.6 series . One might be tempted to think that the basic task of keeping track of the time would not change that much from one kernel to the next. ... One change which shouldn't be problematic for most code is the change in the internal clock rate on the x86 architecture. In previous kernels, HZ was 100; in 2.6 it has been bumped up to 1000. ... Driver porting: Timekeeping changes . ...