| Ultimi arrivi - The Universe Inside |
The_Sun~0.jpgNorouz...66 visiteCaption NASA:"Clouds covered the eastern horizon on Monday, when the Sun rose over the expansive Touran Wildlife Reserve in North-Eastern Iran. Of course, on that day the Moon rose with the Sun, creating a widely enjoyed partial solar eclipse. Along with a mountainous horizon, the cloud cover lent a dramatic aspect to this eclipse sunrise and made it possible for astronomer Babak Tafreshi to record these telephoto images without using a filter. Advancing north in planet Earth's sky, the Sun itself was also approaching the equinox, the astronomical marker for the first day of Northern Hemisphere Spring and the beginning of Norouz, the Persian New Year".Mar 23, 2007
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The_Sun.jpgPartial Eclipse59 visiteCaption NASA:"On Monday, March 19, 2007, shortly before the Equinox, locations in Asia and the Arctic were favoured by the New Moon's shadow during a partial Solar Eclipse. Although the view from Goa, India, found the eclipsed Sun near the horizon, photographer Joerg Schoppmeyer was still able to capture this lovely image, combining celestial with terrestrial silhouettes.
The next eclipse season will begin in late August this year, featuring a total Lunar Eclipse on August 28, and another partial solar eclipse on September 11. Compared to the March 19th eclipse, the September 11th eclipse will be seen on the other side of our fair planet, from parts of South America and Antarctica".Mar 22, 2007
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Rising_Moon.jpgRising Moon72 visiteCaption NASA:"What's happening to the Moon? Drifting around the Earth in 2006 July, astronauts from the International Space Station (ISS) captured a crescent Moon floating far beyond the horizon. The captured above image is interesting because part of the Moon appears blue, and because part of the moon appears missing.
Both effects are created by the Earth's atmosphere. Air molecules more efficiently scatter increasingly blue light, making the clear day sky blue for ground observers, and the horizon blue for astronauts.
Besides reflecting sunlight, these atmospheric molecules also deflect moonlight, making the lower part of the Moon appear to fade away. As one looks higher in the photograph, the increasingly thin atmosphere appears to fade to black".Mar 20, 2007
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Earth_Eclipse.jpgThe "Diamond Ring"...from the Moon!60 visiteUno splendido montaggio che ci mostra una ipotetica veduta dalla Luna di un Eclisse Totale di Sole. Bellissima ricostruzione, davvero, ma...c'è un errore davvero grande in questa "Scena di fantasia": durante una eclissi totale di Sole (ed anche nel momento in cui si forma l'Anello di Diamante - come in questa immagine) la superficie della Luna si troverebbe immersa nella più totale oscurità e quindi risulterebbe ai nostri occhi solo appena distinguibile, in forma di vaghe e quasi indefinibili ombre scure, con le stelle ben visibili nel cielo.
Ma va bene lo stesso...
Caption NASA:"Parts of Saturday's (March 3) lunar eclipse will be widely visible. For example, skywatchers in Europe, Africa, and western Asia will be able to see the entire spectacle of the Moon gliding through Earth's shadow, but in eastern North America the Moon will rise already in its total eclipse phase. Of course if you traveled to the Moon's near side, you could see the same event as a solar eclipse, with the disk of our fair planet Earth completely blocking out the Sun. For a moon-based observer's view, graphic artist Hana Gartstein (Haifa, Israel) offers this composite illustration. In the cropped version of her picture, an Apollo 17 image of Earth is surrounded with a red-tinted haze as sunlight streams through the planet's dusty atmosphere. Earth's night side remains faintly visible, still illuminated by the dark, reddened Moon, but the disk of the Earth would appear almost four times the size of the Sun's disk, so the faint corona surrounding the Sun would be largely obscured. At the upper left, the Sun itself is just emerging from behind the Earth's limb".MareKromiumMar 02, 2007
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Orion.jpgPersian Orion...56 visitenessun commentoFeb 03, 2007
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Counter-glow.jpgThe Gegenshein (or "Counter Glow") Effect in Pisces63 visiteDa "NASA - Picture of the Day", del 26 Dicembre 2006:"If you look carefully enough, you can even see the glow of the Sun in the opposite direction. At night this glow is known as the Gegenschein (German for "Counter Glow"), and can be seen as a faint glow in an extremely dark sky. The Gegenschein is sunlight back-scattered off small interplanetary dust particles. These dust particles are millimeter sized splinters from asteroids and orbit in the ecliptic plane of the planets.
Pictured above, the gegenschein is seen superposed toward the constellation of Pisces. The Gegenschein is distinguished from Zodiacal Light by the high angle of reflection. During the day, a phenomenon similar to the Gegenschien - called "The Glory" - can be seen in reflecting air or clouds opposite the Sun from an airplane".MareKromiumDic 26, 2006
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Minotaur_and_Moon.jpgThe "Minotaur" rocket and the Moon57 visitenessun commentoMareKromiumDic 24, 2006
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Aurora_Borealis_-_01.jpgRed Space-Waterfall56 visitenessun commentoMareKromiumDic 19, 2006
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Aurora_Borealis_-_02.jpgPeaceful Morning Sky65 visitenessun commentoMareKromiumDic 19, 2006
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Aurora_Borealis_-_03.jpgAurora in the Northern Skies59 visiteUn frame davvero molto bello ma che, a parere del nostro Esperto di Fotografia, è stato "taroccato" nelle colorazioni. In realtà la nostra non è una "conclusione scientifica" quanto, piuttosto, il frutto di una sensazione basata sia sull'esperienza (le Aurorae "rosse" sono rare, quelle "fucsia e rosa"...di fatto inesistenti...), sia sull'incoerenza cromatica dei particolari della fotografia una volta che essa è stata scomposta nei suoi canali principali.
Comunque sia...una bella immagine!MareKromiumDic 19, 2006
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Aurora_Borealis_-_04.jpgPurple (light's) Rain...55 visiteSi tratta della stessa fotografia mostrataVi nel quadro precedente ma, questa volta, è in "colori autentici" (almeno a nostro parere...).MareKromiumDic 19, 2006
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Aurora_Borealis_-_05.jpgAurora in the Northern Skies58 visitenessun commentoMareKromiumDic 19, 2006
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