... Cataloged as NGC 2736 , its narrow appearance suggests its popular name, the Pencil Nebula . About 5 light-years long and a mere 800 light-years away, the Pencil Nebula is only a small part of the Vela supernova remnant . The Vela remnant itself is around 100 light-years in diameter and is the expanding debris cloud of a star that was seen to explode about 11,000 years ago. ... Publications with keywords: supernova remnant . Publications with words: supernova remnant . ...

Еще в разделе: (Показать все результаты (>167286) - www.astronet.ru/ )

• Journal "Peremennye Zvezdy"
• XWare > APOD

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2013 March 21 . NGC 2736: The Pencil Nebula . Image Credit Copyright : Martin Pugh . ... Cataloged as NGC 2736 , its elongated appearance suggests its popular name, the Pencil Nebula . The Pencil Nebula is about 5 light-years long and 800 light-years away, but represents only a small part of the Vela supernova remnant . ... About APOD | ...

Еще в разделе: (Показать все результаты (>8437) - www.sai.msu.su/ )

• APOD: 2009 January 8 - NGC 2736: The Pencil Nebula
• APOD: September 22, 1999 - Halos Around the Ring Nebula
• APOD: 2011 September 5 - HH 47: A Young Star Jet Expands

... 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.: ...

Еще в разделе: (Показать все результаты (>7027) - www.arcetri.astro.it/ )

• APOD: September 5, 1998 - The Pulsar Powered Crab
• APOD: September 22, 1998 - M61: Virgo Spiral Galaxy
• APOD: 2001 January 23 - Spherical Planetary Nebula Abell 39

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Moon . ... Comets and Asteroids . ... What changed our view of Chariklo is the discovery of a ring system around it, the first such feature found around a Solar System body smaller than a gas giant planet. ... Almost certainly the rings were born when a collision with a smaller asteroid blasted millions of tonnes of debris off CharikloтАЩs surface. ... A ring system detected around the Centaur (10199) Chariklo (Braga-Rigas et al.) ...

Еще в разделе: (Показать все результаты (>2801) - www.armaghplanet.com/ )

• Fireball of 21 September 2012: Image of the Month | Astronotes
• Was the 21 September Fireball a Second Moon? | Astronotes
• Stargazing in June | Astronotes

... An international team of astronomers has discovered a new magnificent example of a planetary nebula showing fast moving jets. ... Finally, the envelope is ejected as a planetary nebula and the two stars are now orbiting around each other in a frenetic cosmic waltz. ... The paper, just accepted by Monthly Notices of the Royal Astronomical Society, is available on astro-ph (ETHOS 1: A high latitude planetary nebula with jets forged by a post common envelope binary central star, by B. Miszalski et al.)...

Еще в разделе: (Показать все результаты (>28231) - www.eso.org/ )

... 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/ )

. There are a range of easy to use commands that provide a great degree of flexibility in how you move around the contents of the file you are editing. Many of these commands can be combined with a numerical value to extend their functionality. Move the cursor along a line . Move the cursor between lines . Move between text blocks . Move over the file .

Еще в разделе: (Показать все результаты (>205) - comet.sai.msu.ru/ )

• Moving around the screen
• Move around the screen
• Moving over the file

... Armagh Observatory astronomer Dr David Asher made highlights around the world with a new study he presented at the European Planetary Science Congress in Potsdam, Germany, on Monday 14 September. ... Monday, 14 September 2009 23:15 . International Year of Astronomy, Ireland National Node . ...

Еще в разделе: (Показать все результаты (>2795) - star.arm.ac.uk/ )

• Armagh Observatory
• Spinning Star Formation
• Why this is interesting: reasons for which astronomers get very excited around

... I got all my tests for check_over to pass and moved on to writing the first test for do_kernel_square. ... I got all the tests working again and modified the pixmap code to create a float array instead of a double and use a half pixel grid. ... I got all the test cases to run and then modified the cdrizzlebox code to be zero based instead of one based. ... Dobox is the top of the hierarchy of code that needs to be tested for errors after rewriting map_value. ... And I got the tests to work again. ...

Еще в разделе: (Показать все результаты (>15713) - www.stsci.edu/ )

• The Ever-changing Circumstellar Nebula around UW Centauri
• HST this week: 253
• Moving Again

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... How Fast Can A Comet Move, And What Is A Comet Made Out Of? ... Post Message | ... Comets I know are very fast moving objects, but I was wondering just how fast they can actually move. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Еще в разделе: (Показать все результаты (>699) - www.astronomy.net/ )

• THE UNIVERSE NOW-LITERALLY - an Astronomy Net Bigbang Forum Message
• 'Spinning' The Truth About Our Own Moon? - an Astronomy Net UFO Forum Message
• Education Discussion Forum - Hosted by The Astronomy Net

... 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 (>442) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bad TV

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

Еще в разделе: (Показать все результаты (>2823) - www.naic.edu/ )

• What is HISA?
• td8 stops moving apr08
• td12_16jan08

http://hubblesite.org/newscenter/archive/releases/1996/22/text/ Probing the mysterious heart of the Crab Nebula, the tattered remains of a stellar cataclysm witnessed more than 900 years ago, astronomers using NASA's Hubble Space Telescope have found that the Crab is even more dynamic than previously understood, based on a cosmic "movie" assembled from a series of Hubble observations. ... Because of this flickering, the neutron star is also called a "pulsar." ...

Еще в разделе: (Показать все результаты (>295) - www.astro.louisville.edu/ )

• Edwin Hubble and Family in Louisville

A full explanation of the motion of trapped particles would be too abstract and mathematical for this level, but some basic ideas may be described on an intuitive level. The magnetic force on a moving particle is always perpendicular to the motion, as well as to the magnetic field lines. That is why the basic pattern is motion in a circle, around a magnetic field line. ... The best-known periodic motion is the back-and-forth swing of a pendulum, say of a weight suspended by a string (drawing). ...

Еще в разделе: (Показать все результаты (>764) - www.iki.rssi.ru/ )

• Discovery of the Solar System
• Lagrangian Points
• Frames of Reference: The Basics

... Be honest: Do the stars all look the same to you? If you look up at the night sky, you can see anything from dozens to thousands of them, depending on where you live. ... Star science, which is what astrophysics is, sounds much more friendly. The following activities will introduce you to star science as you ramble across the autumn sky. ... When you can look at a star and see more than a point of light, the night sky will come alive. ... Finding your way with a star map . ...

Еще в разделе: (Показать все результаты (>1387) - www.astrosociety.org/ )

• ASP: Making Your Own Astronomical Camera
• ASP: To Every Season There is a Reason
• ASP: Taking a Grand Virtual Voyage in the Milky Way

... With the Moon's terminator moving almost 10 mph (16 km/h) across its equator, how long would it take for an observer using binoculars to notice a change in lunar features? ... The lunar terminator, the sunset/sunrise line that sweeps across the Moon s surface as the Moon orbits Earth, travels at a rate of 9.6 mph (15.4 km/h) along our satellite s equator. ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

Еще в разделе: (Показать все результаты (>6845) - www.astronomy.com/ )

• September 2015 | Astronomy.com
• Astronomers create movie of M87's jet | Astronomy.com
• September 2012 | Astronomy.com

... Home Observing Total Lunar Eclipse ? September 27, 2015 . ... This MonthтАЩs Sky тАУ September 2015 . ... Urban Lunar Eclipses . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... Lunar Eclipse Observing Locations in New York City . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Еще в разделе: (Показать все результаты (>622) - www.aaa.org/ )

• Astro Imaging Workshop: Deep Sky Astro Imaging with a DSLR ? September 14, 2014
• This MonthтАЩs Sky тАУ February 2016 ? Amateur Astronomers Association of New
• Amateur Astronomers Association of New York ? Amateur Astronomers Association

GTK+ 2.0 Tutorial . Prev . Next . ... The gint, gchar, etc. that you see are typedefs to int and char, respectively, that are part of the GLib system. ... A good example is "gint32" which will be typedef'd to a 32 bit integer for any given platform, whether it be the 64 bit alpha, or the 32 bit i386. ... You'll also notice GTK's ability to use GtkWidget when the function calls for a GtkObject. GTK is an object oriented design, and a widget is an object. ...

Еще в разделе: (Показать все результаты (>1205) - www.sao.ru/ )

• Moving objects
• Doppler Shift
• Solar System Cosmology

... A discussion of retrograde motion of planets helps the students understand the logic underlying the ideas of both Ptolemy and Copernicus. ... This lesson plan supplements: "The Discovery of the Solar System," section #9c: on disk Ssolsys.htm , on the web . ... Learn about the system proposed by Copernicus, and the way it explained retrograde motion: all planets moved in circles around the Sun, but the ones closer to the Sun always moved faster. ... Did this predict correct planetary motions? ...

Еще в разделе: (Показать все результаты (>847) - www.cosmos.ru/ )

• Lagrangian Points
• The Sun
• Estimating the Moon's Distance

Astronomy suffers from the `Static Illusion' - because astronomical changes usually occur over intervals much longer than a human lifetime they appear static. This illusion affects our understanding of how astronomical objects work. ... Observations at the 1/10th arcsecond level with HST and near-infrared adaptive optics on ground based telescopes are beginning to create movies of `astronomy in motion'. ... Proto-star HH-30 expanding jet HST.. Young binary, XZ Tau, expanding `bubbles' HST.. ...

Еще в разделе: (Показать все результаты (>4488) - hea-www.harvard.edu/ )

• The AstroStat Slog 2009 September
• Apple Scrolling - Which Way is Up?
• Select a circle around the central point source