... AFGL 2591: A Massive Star Acts Up . ... Young star AFGL 2591 is putting on a show. ... AFGL 2591 is estimated to be about.. ... Where have all the dim stars gone? ... Uranus: The Tilted Planet . ... Uranus is composed mostly of rock and ices, but with a thick hydrogen and helium atmosphere. ... Shown in this stunning false-color Hubble Space Telescope image, the galaxy's disk - composed of spectacular star clusters in winding spiral arms and dramatic dark lanes of dust - spans some 70,000 light...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2001 August 29 . AFGL 2591: A Massive Star Acts Up . ... Explanation: Young star AFGL 2591 is putting on a show. ... AFGL 2591 is estimated to be about one million years old -- much younger than our own Sun 's 5 billion-year age -- and has created a nebula over 500 times the diameter of our Solar System in just the past 10,000 years. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 February 13 . Southwest Mercury . Credit: Mariner 10 , NASA . Explanation: The planet Mercury resembles a moon. ... In fact, the Earth is the only planet more dense. ... From Earth , Mercury's proximity to the Sun cause it to be visible only for a short time just after sunset or just before sunrise. ... About APOD | ...

... Armagh Planetarium . ... Universe . ... Posted on February 19, 2011 | ... Continue Reading.. ... The Hubble Space Telescope recently imaged NGC 2841 as part of an investigation into how new stars are created. ... No Comments Kepler-11 is an amazing, newly-discovered system of exoplanets. ... Hello, IтАЩm Colin, welcoming you to Astronotes, the PlanetariumтАЩs official blog. Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

Program Number . ... The Host Environments of Type Ia Supernovae in the SDSS Survey . ... Those changes are most apparent in Jovian atmosphere, which displays a wide variety of bands and spots, reflecting complex meteorological phenomena (see, e.g., previous ACS observations of the upper atmosphere and of the new little red spot ). ... The present program builds on past HST programs (see Program GO 10534 ) that have monitored atmospheric changes in the two outermost gas giants, Uranus and Neptune. ...

... Measurement of the MASS detectors parameters with mass program January 24, 2015 [112707] . MASS/DIMM electronics. ... Turbina-core(D): Dimm User Guide. ... N.Shatsky, V.Kornilov, The revision of the MASS/DIMM star catalogue. ... О.Возякова, В.Корнилов, Н.Шатский, Новое программное обеспечение прибора MASS/DIMM. ... V.Kornilov, N.Shatsky, S.Potanin, O.Voziakova, B.Safonov Preliminary results of astroclimate parameters measurements at the Sternberg 2.5m telescope installation site. ...

... 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 . ...

... Updated 2008 December 22nd . ... Updated 2008 December 18th . ... Updated 2008 December 17th . ... Updated 2008 December 16th . ... Updated 2008 December 15th . ... Updated 2008 December 10th . ... Updated 2008 December 2nd . ... Some Videos on our Web Sites . ... Cool October . ... Updated 2008 October 31st . ... Updated 2008 October 15th . ... Updated 2008 October 10th . ... Updated 2008 October 9th . ... Updated 2008 October 8th . ... Updated 2008 October 7th . ... Updated 2008 October 2nd . ...

Giant Jupiter. Jupiter . ... Jupiter has no solid surface that is why speaking about its dimensious point the radius of the upper border line of the clouds, where the presseru is about 10 KPa; radius of Jupiter on the equator is 71400 km. ... The Jupiter satellites. ... Nowadays 16 satellites of the Jupiter are known: Adrastea, Mitis, Amaltea , Phina,then 4 Galilei satellites: Io , Europe , Hanimed , Callisto , Leda, Aimalia, Zicitea, Elara, Ananke, Carme, Pasipe and Sinope. ... Jupiter's ring. ...

... 2005 Some important issues Europa moves relative to magnetospheric magnetic field with velocity ~ 105 km/sec (subsonic velocity ) Europa has induced magnetosphere and Alfven wings Europa has atmosphere (51014 cm-2) and ionosphere (~103 ­ 104 cm-3) Energetic particles hit Europa's surface that leads to sputtering rate of ~31027 molecules/sec Europa is an important source of neutrals particles (50kg of 2) and ionized ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

... PRESENTATIONS . Session 1: Missions to Jupiter system . ... Lebreton J.-P. (Invited) . ... The Europa-Jupiter System Mission: study results and prospects . ... Session 2: Technical aspects of the Europa Lander mission . ... V. Sasi Prabhakaran (POSTER PRESENTATION) . ... Geophysical investigations for a landed mission to Europa . ... The surface composition of Europa and implications for a landed mission . ... Vorobyova E. Search for Life on Europa: Objectives for Lander Mission . ...