... 2009 December 22 . Planetary Systems Now Forming in Orion . Credit: NASA , ESA , M. Robberto ( STScI / ESA ), the HST Orion Treasury Project Team , L. Ricci ( ESO ) . ... To help find out, the Hubble Space Telescope was tasked to take a detailed look at one of the more interesting of all astronomical nebulae, the Great Nebula in Orion . ... Many proplyd images also show arcs that are shock waves - fronts where fast moving material encounters slow moving gas. ... About APOD | ...

... Last Friday, a gathering of three bright planets and the Moon graced the morning sky. ... Martian Dust Devil Trails . ... An open cluster of stars is forming there from the gas in cold molecular clouds. ... Pleiades and Stardust . ... Giant Dust Ring Discovered Around Saturn . ... What has created a large dust ring around Saturn? At over 200 times the radius of Saturn and over 50 times the radius of Saturn's expansive E ring, the newly discovered dust ring is the largest planetary ring yet imaged. ...

... Armagh Planetarium . ... Our Galaxy . ... Universe . ... For those of you that are still bearing the psychological scars from PlutoтАЩs demotion from planet to dwarf planet a decade ago, here is news that may add salt to [ ] . ... In 2015 Armagh PlanetariumтАЩs website (including Astronotes) received well over 2.6 million page views (and over 75 million web hits*) from all over the world. ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration....

home publications > mercury . ... Books . ... How Do Planets Form? ... Astronomers are looking for clues from our solar system and others to determine whether planets form easy and fast or hard and slow. by David A. Weintraub, Vanderbilt University . The recent discovery of at least 50 extrasolar giant planets is one of the most profound and exciting events in modern science. ... Being an impatient lot, astronomers don't want to wait for a decade or more until the technology becomes available. ...

Research questions include: . The solar system probably formed about 4.5 billion years ago from a giant disk of gas, dust and ice in space. ... All forms of life on Earth require liquid water to survive, so the presence of liquid water is a good criterion for deciding whether other planets in the universe could be habitable. Earth is the only habitable planet in the solar system. ... Planets and moons in the outer solar system are too cold for liquid water. ...

... For example, take this new picture of an object in space called a planetary nubula it actually has nothing at all to do with planets! A planetary nebula is an object that forms when a star like the Sun (our nearest star) runs out of fuel. ... The star also loses its outer shells of gas, which float off into space. ... Cool Fact: Some planetary nebulae (when you talk about more than one nebula, you call them nebulae ) have two symmetrical clouds of gas on either side of the central star. ...

Software Forum Message . ... VRMars-Spirit - The Red Planet Mars 3D - VR Software On The MER . ... I would like to inform you about my astronomy software VRMars-Spirit - The Red Planet Mars 3D presenting the Mars Exploration Rover Spirit Mission with the aid of virtual reality. ... VRMars-Spirit - The Red Planet Mars 3D's screen shots: . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

. Mars has become the center of intense interest since the Martian Meteorite results were announced. Currently there is a lively debate whether or not primitive life formed there or not.

The properties of the midplanes of planet-forming protostellar disks remain largely unprobed by observations due to the high optical depth of dust and commonly observed molecules. However, rotational emission lines from rare molecules may have optical depths near unity in the vertical direction, so that the lines are strong enough to be detected, yet remain transparent enough to trace the disk midplane. In this talk, I will present a chemical evolution model of an MRI-active T-Tauri disk. ...

... Science highlights . Exoplanets Disks 2016 . ... My post on the STScI science blog: "Disk, gaps, and exoplanets - a journey on the wings of a dragonfly" . ... Read here the scientific publication of this work, on the Astrophysical Journal: Banzatti Pontoppidan 2015, ApJ, 809, 167 . Read here a more poetic description on the STScI science blog: "Disk, gaps, and exoplanets - a journey on the wings of a dragonfly" . ... Do exoplanet compositions retain the imprint of large-scale disk processes? ...

... 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. ...

... Bad Astronomy . ... A tidbit of news on the brown dwarf front came in this week. Regular readers may remember that brown dwarfs are objects that are intermediate in mass between a planet and a star . ... So this is even better evidence that brown dwarfs form like stars and not planets. Brown dwarfs may not turn out to be the 'missing link' between planets and stars the way some astronomers thought a few years ago, but they are providing clues on just how stars and planets do form. ...

For the 2004/2005 summer vacation program the ATNF received almost 200 applications and accepted six students. ... Four of the students were based in Sydney, and two at the Parkes Observatory. ... Nadia wanted to play with a telescope; Joris was looking for an entry into real astronomy after completing his masters in radio astronomy in Sweden; Jamil was keen to network. ... Figure 1: ATNF 2004/2005 summer vacation students. Back row: Peter Hansen, Nadia Davidson, Jamil Zaman, Joris Verbiest. ...

EPHEMERIDES OF MINOR PLANETS . The yearbook "Ephemerides of minor planets" (published since 1948) contains information on orbital elements of numbered minor planets and the circumstances of their observations during the best observation periods. ... orbital elements of 430405 minor planets, numbered as of March 5, 2015 and dates of their oppositions in 2016; . ... opposition ephemerides of minor planets; . ... information on the "Updated Ephemerides of Minor Planets" service; . ...

... New research shows how circumbinary planets form . ... Luke Skywalker s home planet Tatooine would have formed far from its current location in the Star Wars universe, a new University of Bristol study into its real world counterparts, observed by the Kepler space telescope, suggests. ... Circumbinary planets have captured the imagination of many science-fiction writers and film makers; our research shows just how remarkable such planets are, said Stefan Lines from the University of Bristol. ...

... 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. ...

... 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. ...

. Main page . Photos . The defense . The defense . The defense . The defense . The defense . The defense . The defense . The defense . The defense . The defense . The defense . The defense . Me and my former scientific advisor . Me and my former scientific advisor . Копосов Сергей , 2003-2007 . Koposov Sergey , 2007

On the inclination of planetary orbits! Caroline Terquem! ... Planets on inclined orbits Higher inclinations for planets around stars with Teff>6250K? Planet formation, Hot Jupiters and misalignments 1. If planets form by the core accretion scenario and migrate in: Hot Jupiters But no eccentricity and no misalignment (if the disc is in the star's equatorial plane) With further planet/planet scattering and/or Kozai cycles: Eccentricity and misalignment But companions required.. ...

Program Id: . ... UTC End Time: . Astronomer/PI Name(s): . ... Observer Name(s): . Nightlog Day: Sunday Monday Tuesday Wednesday Thursday Friday Saturday Month: January Febuary March April May June July August September October November December Day (DD): Year (YYYY): Full Night A (First half) B (Second half) Special Schedule . ... Note: Open this weather logfile program in another browser window. Please copy and past the resultant info below at the end of the night) . ...