... The ball of stars at the centre of this photograph is unbelievably old. ... This group of stars, called a globular cluster, is actually 10 billion years old that's almost as old as the universe itself! Globular clusters contain tens of thousands of ancient stars that all formed around the same time, from the same material. But strangely, these clusters sometimes contain stars that look suspiciously young, raising the question: are these clusters really the ancient relics that we believe? ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Moon . ... Comets and Asteroids . ... What changed our view of Chariklo is the discovery of a ring system around it, the first such feature found around a Solar System body smaller than a gas giant planet. ... Almost certainly the rings were born when a collision with a smaller asteroid blasted millions of tonnes of debris off CharikloтАЩs surface. ... A ring system detected around the Centaur (10199) Chariklo (Braga-Rigas et al.) ...

... High-velocity clouds (HVCs) were discovered by Muller, Oort & Raimond (1963) in the 21-cm line emission of neutral, atomic hydrogen. They are gas clouds which are characterised by high radial velocities incompatible with a participation in the rotation of our Galaxy. ... This suggestion was seized by Braun & Burton (1999) who identified 66 compact high-velocity clouds (CHVCs) with positional and kinematic characteristics being compatible with a distribution across the entire Local Group. ...

... Credit: NASA Swift Team , Stefan Immler ( GSFC ) et al. ... But staring toward the northern constellation Bootes on March 19th, even without binoculars or telescope you still could have witnessed a faint, brief, flash of light from a gamma-ray burst . The source of that burst has been discovered to lie over halfway across the Universe at a distance of about 7.5 billion light-years. ... March . ... Publications with keywords: gamma-ray burst . Publications with words: gamma-ray burst . ...

My research efforts have focused on three areas which are: . More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to the reflex motions of their host stars, and more recently through transits of some planets across the face of the host stars. ... Gravitational microlensing provides a novel technique to look for planets around lens stars, and this is the only technique currently capable of detecting Earth-mass planets. ...

... This year's eclipse is unique in duration. ... Although, at the present time, there are 6 solar observatories belonging to leading space agencies in orbit around the Earth, the eclipse of 22 July, 2009, will only be seen by two of them: the Russian CORONAS-PHOTON satellite equipped with TESIS telescopes and Japan's HINODE satellite fitted with an XRT space telescope. ... TESIS will be the first of the two devices (and the very first on Earth) to witness the solar eclipse. ...

. Bishop School . Links Around the Web .

strings John Gregory -- guitar vocals Donald Kretmar -- saxophone bass Andrew Kulberg -- bass flute James T. Roberts -- lyrics embArk at the seventh dawn of the sixth sun during fifth moon for the fourth time on the third world both rivers new again find the sea eight children handsinhands dance the ninth building down O me O my O mm Disclaimer: despite the first song , this is not a meaningless, surreal album ... Forevermore, forevermore forevermore, Forevermore, forevermore. [repeat] ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Libraries NI, in partnership with Armagh Observatory, is providing wall space for a stunning exhibition of amazing astronomical images called "From Earth To The Universe" ( FETTU ) in libraries across Northern Ireland for members of the public to call in and see. ... Her talk will focus on distance, scale and some of the amazing objects in the near Universe shown as part of the FETTU exhibition on display in the library. ...

... The theater "U Nikitskikh Vorot" is located at the Nikitskiye Vorota (Nikita Gate) Square, at the intersection of the Nikitskiy (formerly Suvorovckiy) Boulevard and the Bolshaya Nikitskaya (formerly Gerzen) Street. ... 1) From "Arbatskaya" metro station (any of the two). ... Then walk for 5-6 minutes on the right side of the Nikitskiy Boulevard in the direction of the Pushkinskaya Square until you see the theater's front porch. ... BACK to "U Nikitskikh Vorot" theatre page . ...

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2008 March 28 . Across the Universe . Credit: NASA Swift Team , Stefan Immler ( GSFC ) et al. ... But staring toward the northern constellation Bootes on March 19th, even without binoculars or telescope you still could have witnessed a faint, brief, flash of light from a gamma-ray burst . ... About APOD | ...

... Oral traditions have since time immemorial satisfied generations of children and adults with stories of wonder, fantasy, truth, and mystery. ... The story of astronomy and astronomy's evolution as a science includes countless tales originally crafted to explain the visible celestial bodies, their motions (regular and irregular), the mysteries behind their existence, and the powers they exert over us on Earth. ... Impediments to Elementary Astronomy Programs . ... Storytelling Activities - Moon Story...

National Aeronautics and Space Administration . ... Robert L. Curbeam, Jr., ... Curbeam served as a spacecraft communicator (CAPCOM) responsible for relaying all voice communication between Mission Control and crews aboard the Space Shuttle and International Space Station, CAPCOM Branch Chief, and Payloads Group Lead, responsible for representing the crew office in the design, training and operation of on orbit experiments, and Safety Branch Chief for the astronaut office. ... DECEMBER 2007 ...

... With the Moon's terminator moving almost 10 mph (16 km/h) across its equator, how long would it take for an observer using binoculars to notice a change in lunar features? ... The lunar terminator, the sunset/sunrise line that sweeps across the Moon s surface as the Moon orbits Earth, travels at a rate of 9.6 mph (15.4 km/h) along our satellite s equator. ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... It's semi-common knowledge that stars twinkle and planets don't. By semi-common, I mean that a lot of folks know that, but I also mean it isn't strictly true. Stars twinkle because we see them from the bottom of a sea of air. ... These small bundles of air act like little lenses, bending light as it passes through them. ... What we see is the light from the star flickering. ...

. There are a range of easy to use commands that provide a great degree of flexibility in how you move around the contents of the file you are editing. Many of these commands can be combined with a numerical value to extend their functionality. Move the cursor along a line . Move the cursor between lines . Move between text blocks . Move over the file .

Aristarchus of Samos, around 200 BC, proposed that the Earth revolved around the Sun, but found few supporters. ... For a discussion of the discovery of the solar system which includes a "moving picture" illustrating retrograde motion, click here . ... The Sun and Moon, he claimed, obviously moved around Earth. ... The full story of the discovery of the solar system--of Copernicus, Galileo, Tycho and Kepler--is long and would take this discussion too far afield. ... Nicolaus Copernicus . ...

... The Seasons . ... Section #1 Stargazers and Skywatchers described the observed motion of the Sun across the sky, in different seasons of the year. ... If the Earth's axis were perpendicular to the ecliptic, as in the drawings here, the Sun's position in the sky would be halfway between the celestial poles, and its daily path, seen from any point on Earth, would stay exactly the same, day after day. Each point on Earth would be carried around the axis AB once a day. ... The Sun and Seasons . ...

... A dynamic spectra was made of the calOff spectra (1 second samples) for the 15 minutes (.gif) . The hcorcal Tsys values for 2012 were plotted (.ps) ( .pdf ) . The Tsys values for polA have been jumping around. ... mock spectrometer measured 21 MHz bw spectra centered at 432 MHz. 2 millisecond dump time to give 10 samples on calOn,calOff . ... CalOff/(calOn-caloff) * Tcal . ... Black is polA, red is polB. ... The 430 Tsys is measured at +/-.5 MHz about 431 MHz. black is polA, red is polB . ...