... WFPC2 , HST , NASA Explanation: The layers of the Saturn Nebula give a complex picture of how this planetary nebula was created. The above picture , taken in April 1996 and released last week, allows a better understanding of the mysterious process that transformed a low-mass star into a white dwarf star . A computer model indicates that the central star of NGC 7009 first expelled the green gas that now appears barrel shaped. ... Publications with keywords: Saturn - planetary nebula . ...

... December 30, 1997 . NGC 7009: The Saturn Nebula . ... WFPC2 , HST , NASA . ... The above picture , taken in April 1996 and released last week, allows a better understanding of the mysterious process that transformed a low-mass star into a white dwarf star . A computer model indicates that the central star of NGC 7009 first expelled the green gas that now appears barrel shaped. ... Tomorrow's picture: NGC 5307: A Symmetric Planetary Nebula . ... About APOD > . ... NASA Technical Rep.: ...

... 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. ...

... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Visitor list . ... Parkes radio telescope . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... What is a pulsar? ... Group . ... Parkes Pulsar Observing Wiki . ... Pulsar Groups . ... Main / . ... Nov 1, 2010 - Jan 31, 2011 . ... Dec 8 - 17, 2009 . ... Dec 13 - 23, 2006 . ... Dec 3, 2006 - Jan 5, 2007 . ... Aug 10 - Dec 7, 2006 . ... Dec 31, 2005 - Feb 1, 2006 . ...

... Laboratory for Spectroscopy of Molecular Structures . ... News . ... A new article entitled Description of optical properties of cholesteric photonic liquid crystals based on Maxwell equations and Kramers-Kronig relations has appeared in Physical Review E. Congratulations to Grigoriy Ksyonz on his first publication! . 25 th February 2013 . ... 22 nd November 2012 . ... 22 nd February 2012 . 4 th Workshop on Liquid Crystals for Photonics 2012 will take place in Hong Kong December 9-11, 2012. ...

... STScI-PRC97-38b HUBBLE'S PLANETARY NEBULA GALLERY NGC 7009 has a bright central star at the center of a dark cavity bounded by a football-shaped rim of dense, blue and red gas. ... The handles are clouds of low-density gas. NGC 7009 is 1,400 light-years away in the constellation Aquarius. ... It is an example of a planetary nebula with a pinwheel or spiral structure; each blob of gas ejected from the central star has a counterpart on the opposite side of the star. ...

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... 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) ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... Astronomy for Kids . ... Can you explain Mercury's retrograde motion? Do other planets appear to do this also? ... When astronomers talk about retrograde motion, generally they refer to the apparent motion outer planets make as Earth passes them while orbiting the Sun. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Armagh Planetarium . ... Universe . ... Posted on May 31, 2011 | ... Continue Reading.. ... Time was originally defined and quantified through astronomy, and today astronomers are used to glibly talking of vast stretches of time. ... 1 Comment Lying more than 4000 light years from our Solar System, the Lagoon Nebula (M8) is a place where new stars are forming. ... Part of Project Mercury, the flight of Freedom 7 followed mere weeks after Yuri Gagarin?s pioneering [ ] . ... Posted on April 21, 2011 |...

Proceedings of Turbulent Shear Flows XI , 1997. NASA Technical Paper # 3555 , 1997. Proceedings of European Turbulence Conference VI , 1996. ESPRI Research Report # 104, 117-143 (1996) . ... Proceedings of Turbulent Shear Flows X , 1995. ASME Paper 95-GT-437 , 1995. ... Invited AIAA Paper 94-2281 presented at the 1994 AIAA Fluid Dynamics Conference, Colorado Springs, CO. AIAA Paper 94-2323, presented at the 1994 AIAA Fluid Dynamics Conference, Colorado Springs, CO. ...

... Science . ... Science Users Information Future Facilities and Development E-ELT jump to navigation jump to content . ... E-ELT . ... The Telescope . ... Publications and Documents . ... Observing with ESO Telescopes . ... Large Programmes . ... Phase 1 Proposals . ... Scientific publications describing the science case for ELTs as well as publications related to the scientific aspects of the E-ELT are archived in . ... Report on the JENAM 2008 Meeting Symposium Science with the E-ELT (Messenger No. ...

Astronomy Discussion Forums . ... Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... New model: How do the Sun and Moon appear to move across the sky - mito111 - September 15, 2011 - 04:22 UTC . ... Note the change - rick_crockett - April 19, 2007 - 09:38 UTC . ... A Question Regarding Photons and Absolute Zero - inalitalllane - December 25, 2004 - 22:06 UTC . ... Virtual Space Agency - dupagepilot - November 18, 2003 - 12:03 UTC . ... www.astronomy.net . ...

Browse the articles below for new ideas for your classroom. Mercury September/October 2005: Astronomy Education and Public Outreach: Steps and Missteps Toward an Emerging Profession (pdf) . Focus on Education articles as they appeared in Mercury: . ... March/April 2000: . ... Education Newswire articles as they appeared in Mercury, by issue. ... January/February 2000 . November/December 1999 . ... March/April 1999 . ... November/December 1998 . ... November/December 1997 . ...

Spinning discs in space Mass feeding and feedback in YSOs . ScienceAlert Ever wonder how solar-mass stars form? By Tim Wetherell. Sticking to the stars . The complex processes creating accretion discs . ... Disks, Winds and Jets: From Planets to Quasars . ... Theory and modelling of accretion processes . Protoplanetary discs . ... Star formation . Jets and winds . ... Email: raquel@mso.anu.edu.au . ... Webpage: http://www.mso.anu.edu.au/~raquel/ . ...

... Home Education Workshops at Adorama Astro Imaging Workshop: Planetary Astro Imaging with a DSLR ? December 7, 2014 . ... Astro Answers . ... 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 . ... Presented by€а Adorama€а For the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Апрель 1998 . ... Дата: 03 апреля 1998 (1998-04-03) От: Alexander Bondugin Тема: Hubble Reveals Details Of A Newly Born Planetary Nebula Привет всем! ... STScI-PR98-15 HUBBLE REVEALS DETAILS OF A NEWLY BORN PLANETARY NEBULA Astronomers have caught a peek at a rare moment in the final stages of a star's life: a ballooning shroud of gas cast off by a dying star flicking on its stellar light bulb. ...

... Circumstellar disc of beta Pictoris: constraints on grain properties from polarization. To appear in the Astronomy & Astrophysics . abs , src , ps ] . ... Dust influx to Titan from Hyperion . ... abs ] . ... Characteristics of bulges and disks in interacting galaxies . ... Dust grains around Herbig Ae/Be stars: porous, cometary-like grains? ... To appear in the Astronomy & Astrophysics Supplement . ... Finally, Links may lead you to more options (e.g. via the LANL preprint system). ...

... SAO RAN RATAN-600 EXCURSIONS 40 YEARS of R/T REFERENCES . ... GPS radio sources . ... Thursday, April 30, 10-00 . ... Friday, December 19, 10-30 . ... N. Bursov, V. Chaykin, A. Storozhenko "Preliminary results of RATAN-600 antenna measurements with the help of the geostationary Satellite Turksat 2A/3A". ... The basic results. ... Information-analytical system of estimating the parameters of radio sources in continuum with the RATAN-600 (the message for a conference, IPA St. Petersburg). ......

... InformChaos Lab took part in CeBIT-2015 (Hannover, Germany) with "Active Ultra Wideband Wireless Networks". ... Lev Kuzmin received Dr.Sci. degree for his thesis "Wireless information transmission over UWB chaotic carrier" from IRE RAS. ... Artem Nikishov received Ph.D. degree from the Moscow Institute of Physics and Technology for the thesis "Generation of microwave chaotic oscillations in self-oscillating systems with several active elements". ... Our Products page is renewed. ... News | ...