... 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. ...

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

• Phil Plait's Bad Astronomy: Info

... emacs . ... an emacs window should appear on the terminal screen. In the emacs window, type the following in response to the prompts: . ... unixprompt> imageshell ~lrp/latest.image . ... If any of these defunct processes were old SPIKE images improperly terminated, they may be hogging too much memory for a new image to be loaded. From an LRP window: . ... 15-MAY-1997 12:56:18 calendar load date (UT) 971537A8 1997.135:12:54:26 15-MAY-97 12:54:26 $ . ... USER(2): (load-sms "97.153") . ...

Еще в разделе: (Показать все результаты (>22818) - www.stsci.edu/ )

• How to load an SMS into a SPIKE Image
• iCal Calendar Subscriptions
• STScI Electronic Leave System

... 2000 September 22 . M55: Globular Star Cluster . ... Explanation: The fifty-fifth entry in Charles Messier's catalog, M55 is a large and lovely globular cluster of around 100,000 stars. ... Globular star clusters like M55 roam the halo of our Milky Way Galaxy as gravitationally bound populations of stars known to be much older than stellar groups found in the galactic disk. Astronomers who make detailed studies of globular cluster stars can accurately measure the cluster ages and distances. ...

Еще в разделе: (Показать все результаты (>8629) - www.sai.msu.su/ )

• APOD: 2004 September 18 - M55: Globular Star Cluster
• APOD: 2000 July 19 - Globular Cluster M19
• APOD: 2007 March 5 - Illusion and Evolution in Galaxy Cluster Abell 2667

Astronomy Picture of the Day . ... Not so long ago and not so far, far away, a galaxy was born. Seen in this Hubble Space Telescope image, the island universe of stars, gas, and dust cataloged as POX 186 is a mere 68 million light-years distant toward an uncrowded region in the constellation Virgo. ... Only a few short years ago, when the APOD editors were in graduate school, the pervasive, cosmic Dark Energy was not even seriously discussed. ... Galaxy Cluster in the Early Universe . ...

Еще в разделе: (Показать все результаты (>166798) - www.astronet.ru/ )

Астрономический календарь 2016 Какие астрономические явления подарит нам наступающий 2016 год? Наверняка он даст обильную пищу астрологам: как же - мало того, что год високосный, так еще в аккурат на 29 февраля приходится соединение с Солнцем самой далекой официальной планеты солнечной системы - Непутна.. ... Затмения: . ... В отличие от предыдущего года , в наступающем произойдет пять затмений: два солнечных (09 марта и 01 сентября) и три лунных (23 марта, 18 августа и 16 сентября). ... март . ...

Еще в разделе: (Показать все результаты (>63) - edu.zelenogorsk.ru/ )

• Астрономический календарь 2013
• Астрономический календарь 2015
• Астрономический календарь 2014

... July 13, 1999 . The Flame Nebula in Infrared . ... Explanation: What lights up the Flame Nebula? Fifteen hundred light years away towards the constellation of Orion lies a nebula which, from its glow and dark dust lanes, appears like a billowing fire. ... Rather the bright star Alnitak , the easternmost star in the Belt of Orion visible to the nebula's right, shines energetic light into the Flame that knocks electrons away from the great clouds of hydrogen gas that reside there. ...

Еще в разделе: (Показать все результаты (>9547) - www.arcetri.astro.it/ )

• APOD: May 3, 1997 - Giant Cluster Bends, Breaks Galaxy Images
• APOD: 2000 August 4 - M15: Dense Globular Star Cluster
• Astronomy Picture of the Day

... Home Calendar . ... Lecture Series 2014-2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... This Month's Sky . ... This Month's Sky - 2015 . This Month's Sky - January 2015 . ... 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 . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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

• Deep Sky Images by Joe DiNapoli ? Amateur Astronomers Association of New York
• Lecture Series 2015-2016 ? Amateur Astronomers Association of New York
• Astro-Imaging ? Page 9 ? Amateur Astronomers Association of New York

The Astronomy Shop . ... AstroGuide | Calendar | ... Shop | ... Calendars | ... Wall calendar of observator photographs. Highlights include the Trantula, the Omega and Flaming Star nebulae, the Pinwheel galaxy, star cluster NGC 1850, and the Great Attractor. ... Web . www.astronomy.net . About Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Еще в разделе: (Показать все результаты (>1237) - www.astronomy.net/ )

• Find The Perfect Gift For Your Favorite Astronomy Nut - an Astronomy Net...

... Information about a variety of different calendars for different cultures (e.g., Christian, Jewish, Muslim, Chinese, Hindu etc.) ... In addition, the Chinese had two different ways of interpreting and observing celestial events. One way the Chinese used astronomy was known as lifa; it was a discipline that aimed to understand the regularities and the predictable events in the celestial system through careful, observations, measurements and records. ... back to Teachers' Newsletter Main Page ...

Еще в разделе: (Показать все результаты (>1427) - www.astrosociety.org/ )

• ASP: An Ancient Universe - Cosmic Calendar
• ASP: Indiana Jones and the Astronomers of Yore
• ASP: Good Astronomy Activities on the WWW

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to Paranal . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Star Clusters . ... 2012 . ... Stars@ESO . ... Calendars . ... It sports a specially designed ESO logo, and features a timeline of the most important dates in the history of ESO and its front-line telescopes, as well as ESOтАЩs ten most significant scientific discoveries. ... ESO Calendar 2012 . ...

Еще в разделе: (Показать все результаты (>53468) - www.eso.org/ )

• ESO Calendar 2015 Now Available | ESO
• ESO Calendar 2016 Now Available | ESO
• ESO Calendar 2014 Now Available | ESO

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Meade 4M Community . ... LX850 Series . ... The Meade LX70 Series is the perfect choice for the cultivated observer looking to chase deep sky objects such as galaxies, star clusters, nebulae, and more. ... Meade Series 6000 ED Triplet APO refractors compete head-to-head with the world's premium APOs at a fraction of the cost. ... Coronado Accessories . ... Events . Meade Events . ... Event Calendar . City of STEM Big Science Festival . ...

Еще в разделе: (Показать все результаты (>2475) - www.meade.com/ )

• Northeast Astronomy Forum & Telescope Show (NEAF) - Events Calendar
• Events Calendar

... Section M-7 describes the basic problem of trigonometry (drawing on the left): finding the distance to some far-away point C, given the directions at which C appears from the two ends of a measured baseline AB. ... That means that the angle ? ... 2? r covers an angle 360њ . ... Suppose you want to estimate the distance to some distant landmark--e.g. a building, tree or water tower. ... Alpha Centauri, the sun-like star nearest to our solar system, has a distance of 4.3 years and a parallax of 0.75"....

Еще в разделе: (Показать все результаты (>906) - www.cosmos.ru/ )

• Finding the Pole Star
• The Calendar--lesson plan #10
• Estimating the Moon's Distance

... 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! ...

Еще в разделе: (Показать все результаты (>6753) - www.astronomy.com/ )

• How were the constellation boundaries set? They appear pretty arbitrary. |
• Why do the constellations and the Moon appear upside down from the Southern
• Can you explain Mercury's retrograde motion? Do other planets appear to do this

... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...

Еще в разделе: (Показать все результаты (>117) - www.princetonastronomy.org/ )

• AAAP Meeting Announcement

... This Announcement contains detailed information on organizational items, scientific and cultural program of Odessa session GMIC-99. ... 8.00- 23.00 Registration of participants in the hall of Tour-complex "Odessa"(Arcadia region, GAGARIN plateau, 5). ... 8.00- 13.00 Registration of participants in the hall of Tour-complex "Odessa". 10.00-12.00 Program Committee session and press conference dedicated to GMIC-99 (Odessa Scientists' House). ... 9.00- 11.00 Plenary session. ... 13.00- 14.00 Lunch. ...

Еще в разделе: (Показать все результаты (>689) - www.iki.rssi.ru/ )

• The Calender

... As proxy indicators of performance in each of the Observatory's principal areas of activity (research, education and public outreach, and heritage) records are maintained of (A) External Grant Income (per financial year); (B) the number of Refereed Journal Publications (per calendar year); (C) the number of Identified Media Citations (per calendar year); and (D) the number of Distinct e-Visitors (DeVs) to its web-sites (per calendar year). ... External . ... Grant Income . ... 2005 Required Income: ...

Еще в разделе: (Показать все результаты (>3473) - star.arm.ac.uk/ )

• Armagh Astropark: Stone Calendar
• Calendar | International Year of Astronomy in Ireland | Astronomy 2009
• WINTER SOLSTICE LIVE WEB-CAST TO MARK INTERNATIONAL YEAR OF ASTRONOMY |

... This site requires Javascript to function correctly. ... ASRAS HOME . ... About ASRAS . Join ASRAS . ... ASRAS Board Members . Our Observing Site . ... April 2016 . ... ASRAS MONTHLY MEMBERSHIP MEETING - Friday April 1 at RIT (ASRAS Events) . ... ASRAS Board members meeting - monday April 4 @ U of R Bausch and Lomb bldg (ASRAS Events) . ... Messier Marathon (Member Observing) CANCELLED (ASRAS Events) . ... ASRAS HOME Beginners Mees Observatory Contact US About ASRAS Our Observing Site Login . ...

Еще в разделе: (Показать все результаты (>547) - www.rochesterastronomy.org/ )

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

Еще в разделе: (Показать все результаты (>334) - zebu.uoregon.edu/ )

• The Galaxy Gallery: Messier Objects
• Astronomy HyperText Book: Interstellar Medium
• Historical Cosmologies

OptInt PmWiki . MROI Fast Tip Tilt / . Calendar . Edit Page | Page History | ... MROI Delay Line Design Contract . ... MROI DL Production SW Contract . ... Design Documents . ... MROI DL Design Contract Private Material . ... April 22, 2010, at 05:54 PM by 131.111.48.85 - . ... GoogleCalendar calendar=k1td9283iondqa11uf30mfp2ls@group.calendar.google.com title="MRO FTT Calendar" mode=month week=Mon:) . ... GoogleCalendar calendar=k1td9283iondqa11uf30mfp2ls@group.calendar.google.com:) . ...

Еще в разделе: (Показать все результаты (>3413) - www.mrao.cam.ac.uk/ )

• Galaxy Evolution: Calendar
• OptInt PmWiki : Calendar | Attach
• OptInt PmWiki : Calendar

... Visibility of Small Solar-System Bodies . Asteroids) in 2009 : . ... Distance (AU) . ... Jan. 12, 2009 . ... 8.8 m . ... is at opposition on July 4, 2009 . ... Apparent . ... from Sun (AU) . ... is at opposition on September 21, 2009 . ... middle distance between Earth and Sun, equal 149.6 millions km. ... Mean Distance: . ... a configuration of the Sun, Earth and a planet in which the apparent geocentric longitude of the planet differs by 180 from the apparent geocentric longitude of the Sun. ...

Еще в разделе: (Показать все результаты (>444) - www.mao.kiev.ua/ )

• Index of /calendar/2006
• Index of /calendar/2005
• Index of /calendar/2005/img