... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2004 February 29 . Julius Caesar and Leap Days . ... In 46 BC, Julius Caesar , pictured above in a self-decreed minted coin, created a calendar system that added one leap day every four years. ... By adopting a leap year with an extra day every four years, the calendar year would drift much less. ... Calendar | ... About APOD | ...

Еще в разделе: (Показать все результаты (>2564) - www.sai.msu.su/ )

• APOD: 2005 February 20 - Oklo: Ancient African Nuclear Reactors
• APOD: 2000 February 10 - Eros Encounter Nears
• APOD: 2001 February 23 - M55 Color Magnitude Diagram

... A Tail of Two Hemispheres . ... 1.02.2007 . ... Credit: S. Deiries ( ESO ), M. Fulle ( INAF ) Explanation: By January 19/20 Comet McNaught's magnificent dust tail stretched for about 150 million kilometers (~1 AU), requiring images from both southern and northern hemispheres of planet Earth to take it all in. ... Publications with keywords: Comet McNaught - comet tail - dust . Publications with words: Comet McNaught - comet tail - dust . ... The Trifid Nebula in Stars and Dust . ...

Еще в разделе: (Показать все результаты (>166687) - www.astronet.ru/ )

• Active Region 1002 on an Unusually Quiet Sun
• XWare > APOD

We investigate the relative importance of starbursts and active galactic nuclei (AGN) in nuclear activities of ultraluminous infrared galaxies (ULIRGs) based on chemodynamical simulations combined with spectrophotometric synthesis codes. We numerically investigate both the gas accretion rates (ARs; m acc ) on to supermassive black holes (SMBHs) and the star formation rates (SFRs; m sf ) in ULIRGs formed by gas-rich galaxy mergers and thereby discuss what powers ULIRGs. ...

Еще в разделе: (Показать все результаты (>23498) - www.atnf.csiro.au/ )

• VLBI Wiki | Main / LBAFeb2009
• VLBI Wiki | Main / LBAMar2013

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. February 5, 1996 . COBE Dipole: Speeding Through the Universe . Credit: NASA , COBE , DMR , Four-Year Sky Map . ... The Milky Way Galaxy orbits in the Local Group . ... The map indicates that the Local Group moves at about 600 kilometers per second relative to this primordial radiation . ... About APOD | ...

Еще в разделе: (Показать все результаты (>9163) - www.arcetri.astro.it/ )

• Next VLT Instrument Ready for the Astronomers (PR Photos 05a-c/00)
• APOD: May 15, 1998 - TRACE and the Active Sun
• APOD: February 3, 1998 - A Magellanic Mural

... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

Еще в разделе: (Показать все результаты (>46943) - www.eso.org/ )

• Visiting with an Old and Active Friend (ESO PR Photos 07a-b/01)
• Location of ESO HQ Relative to Munich | ESO
• Location of ESO HQ Relative to Munich | ESO Ireland

... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

Еще в разделе: (Показать все результаты (>494) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Bitesize Tour of the Solar System

THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON FEBRUARY 2014 HAS MADE W feb.= 102.8, THAT GIVES FOR 61 MONTH (2013, JULY) DEVELOPMENT CURRENT 24 CYC- LES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*june = 69.0 THE BEGINNING 24 CYCLES OF SOLAR ACTIVITY - I 2009 with W*=1.8 THE MOST PROBABLE TIME OF THE MAXIMUM OF THE CURRENT CYCLE- XI.2013 - I 2014 THE MOST PROBABLE HEIGHT OF THE MAXIMUM - Wmax = 68 - 75. ... 170.3 THE MONTHLY MEAN OF GEOMAGNETIC Ap-index ON 2014, FEBRUARY Ap feb.= ...

Еще в разделе: (Показать все результаты (>602) - www.izmiran.rssi.ru/ )

• http://www.izmiran.rssi.ru/services/saf/archive/en/2012/obzor20120305.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2015/obzor20150302.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2016/obzor20160307.en.txt

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Product Reviews . ... View more active galactic nuclei . ... In the July 2013 article, Secrets of the brightest objects in the universe, I describe what astronomers currently know about quasars, which are the most luminous type of active galactic nuclei (AGNs). ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Еще в разделе: (Показать все результаты (>6518) - www.astronomy.com/ )

• February 2011 | Astronomy.com
• Astronomers discover quasars acting as gravitational lenses | Astronomy.com
• What to expect from Comet PANSTARRS in February | Astronomy.com

... Mindful of these biases, I can now explore the relations between the measured rotation periods and various other observables. The hypothesis behind monitoring stellar variability is that active stars have asymmetric spot distributions on their photospheres. ... They found that only stars with rotation periods greater than seven days show variations greater than 0.4 magnitudes at I. Bouvier et al . ... 1993a) demonstrated a relation between X--ray flux and spectral type in ZAMS stars. ...

Еще в разделе: (Показать все результаты (>3751) - hea-www.harvard.edu/ )

• A matrix of tweets from #AAS221
• OTHER DOCUMENTATION
• Astro Jargon

. You can define a file or directory by its location in relation to your current directory . The pathname is given as / (slash) separated list of the directories on the route to the file (or directory) from your current directory. A .. (dot dot) is used to represent the directory immediately above the current directory. In all shells except the Bourne shell, the ~ (tilde) character can be used as shorthand for the full pathname to your home directory. Examples . Did You Know? .

Еще в разделе: (Показать все результаты (>224) - comet.sai.msu.ru/ )

• Examples of using relative pathnames

... 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" . ...

Еще в разделе: (Показать все результаты (>3) - www.astronomer.ru/ )

... A dynamical system is an action of the infinite cyclic group. Group action study is€аimportant for€аdifferent areas of€аdynamics and geometry. The topics of€аthe conference include: . ... Diophantine approximations and homogeneous flows, e.t.c. We plan a€аminicours by€аD.€аCalegari about the solution of€аthe Ahlfors' measure conjecture for limit sets of€аKleinian groups. ... In 5тАУ7€аminutes you'll see a€аchurch on€аyour right€атАФ turn right to€аBolshoy Vlasyevsky street after that. ...

Еще в разделе: (Показать все результаты (>691) - www.mccme.ru/ )

• Conference "Combinatorial Methods in Physics and Knot Theory" (February 2005)

... In Spiral . Between spiral . ... Center of vortices . ... to density exterema . ...

Еще в разделе: (Показать все результаты (>755) - jet.sao.ru/ )

• Laboratory for the Stellar Magnetism Study of SAO of the RAS - Physics and

Regions designation | Regions models | ASCII files description . The real time visibility of the IB_TAIL relative to the Evpatoria and Panska Ves . ... The real time regions passing . ... The IB_TAIL geocentric distance as a function of the Moscow time (MT = UT + 3h) (Plot) . Geomagnetic local time in the IB_TAIL position as a function of the MT (Plot) . The IB_TAIL orbital data ASCII files . ... INTERBALL mission  ...

Еще в разделе: (Показать все результаты (>1087) - www.cosmos.ru/ )

• IB_AUR February 1997 during operations scheduling
• IB_MAG5 February 2000 during operations scheduling
• Thermodynamic system for satellite attitude determination (TDSAD)

This document explains some of the directives provided by the core server which are used to configure the basic operations of the server. ... Process Creation . Network Configuration . ... User . ... A single control process is responsible for launching child processes which listen for connections and serve them when they arrive. ... The User and Group directives are used to set the privileges of the Apache child processes. ... The child process creates multiple threads to serve requests. ...

Еще в разделе: (Показать все результаты (>93) - neptun.sai.msu.ru/ )

• How Directory, Location and Files sections work
• Configuration Files
• Mapping URLs to Filesystem Locations - Apache HTTP Server

Drawing and Part Configuration Management and Release Procedures: . ... Context: This procedure is intended for use by APO Telescope Drafting and Engineering personnel for the development, release and maintenance of telescope related models, drawings, and other controlled documents to facilitate the sharing of information between the various institutions and personnel that have need of technical information and engineering files regarding APO telescope design and development. ... Release Procedure: . ...

Еще в разделе: (Показать все результаты (>1207) - www.apo.nmsu.edu/ )

• Astrophysical Research Consortium - Apache Point Observatory
• M1 Airflow Lab Tests

... Home Education Classes AAA Spring Astronomy Class: The Physics of Astronomy тАУ February ? March 2016 . ... Classes . ... AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... This MonthтАЩs Sky тАУ March 2016 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Еще в разделе: (Показать все результаты (>623) - www.aaa.org/ )

• Astronomy Workshop: Observing Variable Stars from the City ? February 15, 2015
• Lecture Series 2015-2016 ? Amateur Astronomers Association of New York
• Observing ? Amateur Astronomers Association of New York

... All previous such superstars have been found along with many companion stars in the centres of crowded star clusters. The star is known as VFTS 682 from the VLT-FLAMES Tarantula Survey catalogue of the European Southern Observatory's Very Large Telescope (VLT) located at Paranal in Chile by means of the attached FLAMES instrument. ... Although VFTS 682 seems to be alone now it is not very far away from a very rich star cluster known as RMC 136 that contains several similar superstars. ...

Еще в разделе: (Показать все результаты (>3006) - star.arm.ac.uk/ )

• J.G. Doyle, Research Astronomer
• Conclusion of the Beagle 2 Phobos Eclipse Experiment

Geometric Algebra 2 Quantum Theory Chris Doran Astrophysics Group Cavendish Laboratory Cambridge, UK Spin · Stern-Gerlach tells us that electron wavefunction contains two terms · Describe state in terms of a spinor S N · A 2-state system or qubit MIT2 2003 2 Pauli Matrices · Operators acting on a spinor must obey angular momentum relations · Get spin operators · These form a Clifford algebra · A matrix representation of the geometric algebra of 3D space ...

Еще в разделе: (Показать все результаты (>1588) - www.mrao.cam.ac.uk/ )

• http://www.mrao.cam.ac.uk/galevol/jsabater-Cambridge.pdf
• http://www.mrao.cam.ac.uk/~bn204/mk2/publications/2004/dusty04-gmrt-spitzer-poster.pdf
• Determination of the relative orientation between radio and dynamical reference

AO9 is a survey monument at the bottom of the primary . Measure the offset of the primary relative to AO9: . Select 6 reflector targets spaced across the primary and measure their location using a theodolite mounted on AO9. This gives the primary offset relative to AO9. Move the tertiary to align it with the secondary: . ... This is needed since we can't see inside the tertiary and the secondary at the same time with the theodolite. ...

Еще в разделе: (Показать все результаты (>2899) - www.naic.edu/ )

• http://www.naic.edu/~phil/rfi/fm/fcc_73.317_fmstations.pdf
• Common Holidays in Relation to Equinoxes, Solstices Cross-Quarter Days
• tv information