... The Helix Nebula from Blanco and Hubble . ... How did a star create the Helix nebula? ... The Tarantula Nebula is a giant emission nebula within our neighboring galaxy the Large Magellanic Cloud. ... The center of the Andromeda galaxy is beautiful but strange. ... In the center of a swirling whirlpool of hot gas is likely a beast that has never been seen directly: a black hole. ... As a present to APOD readers, digital imager Mattias Malmer offers a very high resolution view of big beautiful Saturn....

... Planets . ... The planets were found using the HARPS instrument on the 3.6m telescope at ESOтАЩs La Silla Observatory. ... A planet in orbit around a star causes the star to regularly move towards and away from observers on Earth. ... One newly discovered planet, HD 85512 b, is best hope found so far for a habitable exoplanet. ... The HARPS team so far have found that about 40% of stars similar to own Sun have at least one planet smaller than Saturn (which is 95 times more massive than Earth). ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... News Feed . ... 2012 December 18th . ... Cooler November . ... Relative Humidity at Armagh Observatory, 1838-2008 . 2012 November 29th . ... 2012 November 28th . ... 2012 November 22nd . ... Armagh Observatory 2012 Robinson Lecture . ... 2012 November 1st . ... 2012 October 1st . ... Armagh Observatory Business Plan 2012-2013 (PDF) . ... Armagh Observatory and Planetarium Management Committee Minutes November 2011 - PDF . ...

... 2008 November 17 . HR 8799: Discovery of a Multi-planet Star System . ... Explanation: How common are planetary systems like our own Solar System? In the twelve years previous to 2008, over 300 candidate planetary systems have been found orbiting nearby stars. ... Although the HR 8799 planetary system has significant differences with our Solar System, it is a clear demonstration that complex planetary systems exist, systems that could conceivable contain an Earth-like planet . ... About APOD | ...

... General information . ... Staff . Research staff . ... Information . ... Historical highlights . Historical research . ... This process is thought to occur in circumstellar disks of gas and dust around young stars on rather short timescales : infrared surveys show that the number of low mass stars with disks drops dramatically for stars older than 10 Myr, suggesting that in order to form large solids before the disk disperses, the growth process has to take place within a few million years. ...

... Abstract . ... The ACS optical/far-red image of the Hubble Ultra Deep Field . ... Since then, there have been numerous other observations, including Hubble's images of proplyds (protoplanetary disks) in the Orion Cluster, and Hubble and Spitzer observations of edge-on disks in other young stars. ... The program will combine ultraviolet observations with the WFC3/UVIS camera on HST with GALEX UV data for 5 lenses spanning as broad range of black hole masses. ... Past weeks: . ...

... 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) ...

... An artificial comet holds secrets to Earths life . ... Planets, orbits, and comets are somewhat round. Is there an underlying mechanism or physical law? ... The force of gravity is also responsible for the elliptical, and occasionally circular, shapes of orbits. ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

... Outreach . ... I'm a PhD student at the Australian National University's Mt Stromlo observatory and am part of the Australia Telescope National Facility (ATNF) graduate program. I study the properties on nearby galaxies and investigate the evolution of the local universe. ... I run the RSAA Student Outreach Group which invites school children to participate in free astronomy outreach evenings. ... Copyright 2007 Emma Kirby. ... All Photos were taken by Emma Kirby unless otherwise stated. ...

... This artist's impression shows the remarkable planetary system around the Sun-like star HD 10180 five planets and evidence for two more. ... Richest Planetary System Discovered . ... This remarkable discovery also highlights the fact that we are now entering a new era in exoplanet research: the study of complex planetary systems and not just of individual planets. ... The newly discovered system of planets around HD 10180 is unique in several respects. ...

... 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. ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

... Among these objects, the newly discovered Kuiper Belt Objects (KBO's) outside the orbit of planet Neptune (also known as Trans-Neptunian Objects) are of particular interest, but the meeting was also concerned with distant comets and some of the small moons of the outer planets. ... The Kuiper Belt is a zone outside the orbits of Neptune and Pluto in which icy solar system objects were expected to be present; the first was found in 1992. ... ESO Press Photo 41/98 . ... Send comments to <ips@eso.org> ...

... 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 . ...

Mercury - is the nearest to the Sun. Ellusive planet. ... They had several names for this star: Set and Gor (ant. ... The same surface spot with many craters, some of which has the systems of light beams only dark spots, like the Moon seas were considerably less. ... Further was the period of intensive bombing Mercury by the remains of before planet’s swarm (planetozimalies), when the ponds were founded for example Colories (diameter - 1300km) as well as craters like Copernic crater in the Moon. ...

... 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 . ...

... Telescopes . ... The International Conference "Dark Ages and White Nights (Spectroscopy of the CMB)" (June 20-24, 2016) . ... The International Conference "Stars: from collapse to collapse" (October 3-7, 2016) . The traditional annual competition conference of scientific and scientific-engineering papers of the Observatory staff members . ... A session of the Dissertation Council (October 16, 2015) . ... International scientific conference "Large Optical Telescopes" (October, 10-13, 2011) . ...

... The (very) slow rotation of magnetic Ap stars. ... Magnetic stars in young clusters and associations. ... Magnetic fields in low-mass stars from high-resolution infrared spectroscopy. ... Magnetic field measurements of late B-type starss. ... Measurement of magnetic field of FK Com. ... Magnetic field of white dwarfs. ... The magnetic star evolution project (teleconference). ... Conference-2014 . Program . ... Laboratory for the Stellar Magnetism Study of SAO of RAS . ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... 8, ``Celestial Mechanics'', 2002 Dynamic evolution of resonance orbits of exoplanets in system 47 Uma B. R. Mushailov, A. A. Kaloshin Sternberg Astronomical Institute, Moscow, Russia The orbits of the major and minor planets of the Solar system indicate that their dynamic evolution is essentially influenced by the effects of orbital reso­ nance interactions. ... One may expect that the orbital resonances can exist not only in the Solar system, but also in other star systems. ...