Astronomy Picture of the Day . ... 22.09.1999 . ... September 1999 . ... 1999 2000 . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... A service of: LHEA at NASA / GSFC . ... U. Based on Astronomy Picture Of the Day . Publications with keywords: planetary nebula - Ring Nebula . Publications with words: planetary nebula - Ring Nebula . ... The Red Rectangle Nebula from Hubble . The Medusa Nebula . Halo of the Cats Eye . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Space Flight . ... Search Results for ?stellar nursery? Posted on February 21, 2013 | No Comments A new image from the European southern ObservatoryтАЩs Visible and Infrared Survey Telescope for Astronomy €а(VISTA) telescope reveals the glowing clouds of gas and filaments of dust surrounding hot young [ ] . Continue Reading.. Posted on March 2, 2016 | ... Posted on November 12, 2015 | ... Posted on July 28, 2015 | ...

... September 22, 1999 . Halos Around the Ring Nebula . Credit: Subaru 8.3-m Telescope , NAOJ . Explanation: What's happened to the Ring Nebula? ... The above recently-released, false-color image taken by the giant Subaru Telescope shows details of giant halos of diffuse gas that are seen to envelop the entire structure. ... The origin and future evolution of the Ring Nebula 's outer halos is still being investigated. ... About APOD > . ...

This is a series of periodic postings by Terry Moseley of the Irish Astronomical Association . ... Issued 2004 December 28th . Mercury correction; Comet Macholz, lecture . ... Lidl Binocs, IAA lecture, Dunsink, Geminids . ... 2004's best meteors, TV, Lecture, IAA Party . ... IAA lecture, TV Prog, 2 New Lectures, IAA sub . ... Two Lectures, ISS, next IAA lecture . ... Major TV Series, IAA Lecture . ... 2 Lectures, Lecture series, S.A.N. -Issued 2004 September 21st . ... Issued 2004 June 27th . ...

Discover the cosmos! ... 2000 December 29 . The Dark Horsehead Nebula . ... Image Processed by Al Kelly . Explanation: While drifting through the cosmos this magnificent interstellar dust cloud, sculpted by stellar winds and radiation, has chanced to assume a recognizable shape. Fittingly named The Horsehead Nebula it is embedded in the immense complex of star forming gas and dust surrounding the Orion Nebula some 1,500 light-years distant. ... About APOD | ...

... Please find below the final programme of the workshop. Each regular talk will be 20 minutes long plus another 10 minutes for questions and discussion at the end. On Friday there will be a pizza lunch combined with an informal discussion session kindly facilitated by John Dickey and Felix J. Lockman. ... Coffee . ... Magnetic Fields in the Thick Disk of the Milky Way . ... Highly Ionized Plasma in High-Velocity Clouds . ... Limits on the Hot Diffuse Galactic Halo . ... John Dickey . ...

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

... 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) ...

August 26, 2006, . ... The 2 nd Asian-Pacific Astronomy Olympiad to be held in Vladivostok and Ussurijsk (Far East of Russian Federation). Preliminary dates for the 2 nd Asian-Pacific Astronomy Olympiad are December 4-11 (a couple weeks later than the 11 th IAO in Bombay ). ... For the teams which ask for Russian visa - together with the personal data for visas (or before). E-mails for sending the applications . ... The Asian-Pacific Astronomy Olympiad 2006 - last information . ...

... Archives . ... September 2011 (1) . February 2011 (1) . January 2011 (1) . December 2010 (2) . August 2010 (2) . July 2010 (1) . June 2010 (3) . April 2010 (2) . March 2010 (1) . February 2010 (1) . January 2010 (1) . December 2009 (5) . ... February 2009 (7) . January 2009 (4) . December 2008 (6) . ... February 2008 (11) . January 2008 (11) . December 2007 (12) . ... February 2007 (1) . January 2007 (6) . ... Bad AstroStat (18) . ...

We present new images of the reflection nebula surrounding the R Coronae Borealis Star, UW Centauri. ... Instead, the morphology of the nebula appears to change as different parts are illuminated by light from the central star that is modulated by shifting thick dust clouds near its surface. ... In this way, the central star acts like a lighthouse shining through holes in the dust clouds and lighting up different portions of the nebula. ... ADS Citation Query . citations = 21 . ...

... ESO Science Newsletter December 2015 . 17 Dec 2015 . ... This newsletter is a summary of recent ESO Science Announcement items. Follow the links or visit ESO Science Announcements to read more. ... Read more . ... The allocation of ESO telescope time for Period 97 (1 April БЂ“ 30 September 2016) is expected to be emailed in the week beginning 21 December 2015. ... ESO Workshop, ESO Headquarters, Garching, Germany, 27 June БЂ“ 1 July, 2016 . ... Joint ESO, ALMA, NAOJ, NRAO Workshop. ...

... Articles | ... Forums . ... 230 deg . 49 deg . ... 130 deg . ... More Info . ... 210 deg . ... 168 deg . ... 249 deg . ... 195 deg . ... 271 deg . ... 110 deg . ... 338 deg . ... July 15 . 247 deg . ... 224 deg . ... 340 deg . ... July Phoenicids (PHE) . ... August 10 . 341 deg . ... 339 deg . ... 307 deg . ... 334 deg . ... 335 deg . ... 286 deg . ... 327 deg . ... 262 deg . ... 102 deg . ... 153 deg . ... 117 deg . ... December 2 . ... 123 deg . ... 100 deg . ... www.astronomy.net . ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... ISS Russian Segment . ... Experiments and Researches from 2013 . ... Support of the Station functionality; . ... Onboard photographic and video recording of the ISS RS flight history and implementation of symbolic activities program. ... Support of the Space Station functionality; . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... For a timeline of the exploration of the magnetic environment of the Earth, Sun and Planets, see here . ... Galileo Galilei (1564-1642) builds the first astronomical telescope and observes for the first time craters on the Moon, satellites around Jupiter, and the way Venus goes through phases like the Moon (crescent, etc.) ... 17 December--First successful flight by the Wright brothers at Kitty Hawk, North Carolina. ... 16 March--Goddard launches his first liquid-fuel rocket. ...

... January . February . March . April . ... November . December . ... April ((April Fools)) . ... April (Star Party Reports) . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Maintenance and Work Completed on M1: September 10, 1999 . Whiffles Installed on M2: September 10, 1999 . M1 Support System Maintenance: September 10, 1999 . M1 Temperature Sensor Work and Repair: September 10, 1999 . M1 Hex-cell Deterioration: September 14, 1999 . ... M1 Whiffle Mount and M1 Back, September 21, 1999 . ... Views of Secondary Mirror (Back): April 13, 2000 . ... Front Portals: June 8, 2001 . ... M2 and M3 Baffle Work: June 8, 2005 . ... M3 Work: November 7, 2007 . ...

... Tte tables of ionosphere and plasmasphere parameters are contained in a file param.tbl. ... Latitude Longitude Numbers of tables for (degree) (degree) Month Wm=10 Wm=100 Wm= 150 80 30 March 1 - 3 397-399 793-795 80 150 March 4 - 6 400-402 796-798 80 270 March 7 - 9 403-405 799-801 60 30 March 10 - 12 406-408 802-804 60 150 March 13 - 15 409-411 805-807 60 270 March 16 - 18 412-414 808-810 40 30 March 19 - 21 415-417 811-813 40 150 March 22 - 24 418-420 814-816 40 270 ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Star Atlas . ... Astronomy for Kids . ... Is there evidence of Oort-Cloud-like structures around other stars? ... We showed that if the solar system is typical, then Oort-Cloud-like structures should commonly exist around other stars. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . COSMIC CALENDAR . The Cosmic Calendar Activity. If we were to compress the history of the universe (from the Big Bang to the present moment) into one year, you can see where various "cosmic events" would fall in that year. ... The first mammals don't emerge until December 26th, and the first humans come on the scene in the evening of December 31st. ... Return to An Ancient Universe . ...