... 2012 October 23 . Mammatus Clouds Over Saskatchewan . ... This is because moist warm air that rises and cools will condense into water droplets at a specific temperature, which usually corresponds to a very specific height. ... Under some conditions, however, cloud pockets can develop that contain large droplets of water or ice that fall into clear air as they evaporate. ... These mammatus clouds were photographed over Regina, Saskatchewan , Canada during the past summer. ... About APOD | ...

... October 27, 1999 . In the Heart of the Tarantula Nebula . Credit: Gary Bernstein Megan Novicki ( U. Michigan ); . ... Explanation: In the heart of monstrous Tarantula Nebula lies one of the most unusual star clusters. ... The energetic light from these stars continually ionizes nebula gas, while their energetic particle wind blows bubbles and defines intricate filaments. ... In the heart of this heart is a central knot of stars that is so dense it was once thought to be a single star. ...

... A Close-Up of the Horsehead Nebula . ... 5.10.1996 . ... How did the dark dust cloud shown above come to be shaped like a horse's head? ... Barnard 33 , as this region is known to some, is surely a dark dust cloud absorbing the light from the bright red emission nebula behind it. The Horsehead Nebula is also thought to be a region where low-mass stars form. ... The Horsehead Nebula's dust distribution might just be the result of a specific irregular distribution of stars and gas in its vicinity. ...

Astronomy Discussion Forums . ... A Number Is A Very Specific Thing . ... Post Message | ... Posted by Harvey on October 9, 2002 16:41:15 UTC . ... When you use the word 'number', you are introducing a specific kind of symbol that is known within the context of mathematics. ... You know what - harvey1 - October 9, 2002 - 20:53 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... 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" . ...

... Our resulting sample of ELGs presented in Tables 2 and 3 is not artificially biased to any specific type of galaxies. ... Since we are looking for selection of a sample of Case BCGs, it is interesting to examine how the detected BCGs are connected with Case emission-line codes. ... Altogether BCGs comprise about 60 % of all Case ELGs which display emission lines in our spectra, or about 44 % of all Case galaxies with some emission-line code. ... Among those with the code ``w'' about 40 % are BCGs. ...

. 3, and discuss what is suggested from the different distribution of galaxies on the main sequence diagram between the two different epochs.

... Posts tagged ?Pareto distribution? ... Posted by hlee . ... Tags: Classification , covariance , FARIMA , Fisher information , GL , GRB , Levy , light curve , limb darkening , ML , Pareto distribution , quasars , solar flare , standard candle , tessellation , time series , VO , void . ... 1 Comment . ... ArXiv] Pareto Distribution? ... 4 Comments . ... From arxiv/astro-ph, arXiv:0706.2590v1 Extreme Value Theory and the Solar Cycle by Ramos, A. This paper might drag a large attention from CHASC...

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

Distribution of the analyzed SEPs with different >100 MeV proton fluxes ( J 100 ) at the microwave flux density plane ' S 9 vs. ... 1) General correspondence takes place between intensities of microwave bursts and proton fluxes - J 100 increases when S 9 and S 15 rise. ... 3) Powerful microwave bursts ( S 9 , S 15 >3000-10000 sfu ) with hard radio spectra ( S 9 < S 15 ) correspond to majority of powerful proton fluxes ( J 100 >10 pfu ). ...

Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...

... Home Lectures Lecture Series 2015-2016 . ... Lecture Series 2014-2015 . ... Beyond New York City . ... The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the public. ... Amateur Astronomer Association is pleased to announce we will be offering select, limited reserved seating for current AAA members for the Friday, January 8, 2015 AAA Lecture entitled Robert Nemiroff ?2015 Astronomy Picture of the Day?. ...

Authors: Yu.G. Shevelev , V.A. Marsakov , . ... We have constructed and investigated properties of metallicity function of disk stars with different ages, proceeding from the statistically restored real altitude distributions of stars at the solar galactocentric distance. It is shown that the metallicity distribution of stars in each age range is not of Gaussian form, but it may be considered as a superposition of two normal distributions centered at -0.2 and 0.0 dex. ...

... We had a unique diagnostic tool for determining whether or not the secondary was fractured during the dark run in that we had 3 sets of focus sweep data for the imaging camera taken on the nights of 05 October 1999, 11 October 1999, and 14 October 1999. ... Figure: 05 October 1999, CCD g1 . ... Surface plot. ... Figure 32 plots the same data but for CCD g3. ... Figure: Comparison of normalised brighness for the out-of-focus doughnuts for the nights of 05, 11, and 14 October 1999 for CCD g1. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Space Flight . ... Posted on April 21, 2011 | No Comments An image from the European Southern Observatory, reveals two galaxies, NGC 3169 and NGC 3166, meeting in intergalactic space. ... Continue Reading.. ... 1 Comment NGC 2841 is a rather beautiful flocculent spiral galaxy. The Hubble Space Telescope recently imaged NGC 2841 as part of an investigation into how new stars are created. ... Posted on October 28, 2010 | ...

... V.R.I - the Virtual Radio Interferometer . ... The Virtual Radio Interferometer (V.R.I.) - a Java applet - allows users to explore the uv-coverage and FFT images resulting from different distributions of telescopes, including current radio interferometers such as ATCA, WSRT, Merlin, and ASKAP. The example above shows the combination of two ATCA configurations, EW352 (blue) and H168 (red), each observing a radio galaxy at DEC = -45 degr for 8 hours. ... today * ATNF | ... ATCA | ... ASKAP | ...

XMM­Newton CCF Release Note XMM­ CCF ­REL­8 EPIC Spectral Response D Lumb October 3, 2000 1 CCF components Name of CCF VALDATE List of Blocks changed CAL VERSION XSCS flag EMOS1 EFFICIENCY 0001 2000 01 01T00 :00:00 EFFICIENCY YES EMOS2 EFFICIENCY 0001 2000 01 01T00 :00:00 EFFICIENCY YES EPN EFFICIENCY 0001 2000 01 01T00 :00:00 EFFICIENCY YES EMOS1 QUANTUMEF 0006 2000 01 ... Files xxx EFFICIENCY include the spatial and energy dependence of CCD detection efficiency. ...

. There is scientific demand for being able to obtain NICMOS coronagraphic observations at two different roll angles within the same orbit, but doing so is presently very labor-intensive. The reasons for this are examined and some alternatives to automate the process are explored. A specific recommendation for a "two-visit" architecture is made.

... ESO Science Newsletter October 2015 . 08 Oct 2015 . ... This newsletter is a summary of recent ESO Science Announcement items. Follow the links or visit ESO Science Announcements to read more. ... A detailed report on the outcome of the ALMA Early Science Cycle 3 Proposal Review Process is available . ... Read more . ... 17 Sep 2015: . ... Science Operations 2015: Science Data Management . ... You are receiving this newsletter because you subscribed to the ESO Science Newsletter. ...

The longterm orbit evolution and ballistic lifetime 1995 - 2000 . The annual distribution of the key magnetospheric regions covered by the orbit in 1995 - 2000 . ... As a result of this evolution the Tail probe will stop his ballistic life in the middle October 2000. ... Back to the Top . ... Back to the INTERBALL Home Page . Back to the IKI Satellite Situation Center (SSC) Home Page . Back to the Space Research Institute (IKI) Home Page . ... Satellite Situation Center, Senior Scientist . ...