| Piú votate - The Universe Inside |
The_Mono_Lake.jpgThe "Mono" Lake126 visitenessun commentoMareKromium
(12 voti)
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Sunset-PCF-01.jpgSunset from Legnano (Absolute Natural Colors; credits: Dr Paolo C. Fienga)187 visitenessun commentoMareKromium
(12 voti)
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Neptune_and_Triton-NC-LXT.jpgFather and Son, in an Ocean of Darkness: Neptune and Triton (Natural Colors; credits: Lunexit)55 visitenessun commentoMareKromium
(12 voti)
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Lost.jpgLost...54 visiteWandering through the Evening Sky, on May 4th, 2008, Planet Mars stood in line with Castor and Pollux, the two bright stars of the constellation Gemini.
In this time exposure of the celestial alignment, Mars actually takes on a distinct yellowish hue, contrasting in color with Pollux; a giant star known to have a Jupiter-class planet, and Castor; itself a multiple Star System.
Though in mythology Pollux and Castor are twin brothers, the two stars are physically unrelated and are about 34 and 50 LY distant respectively.
Included in the skyview are Procyon, alpha star of Canis Minor, and famous star cluster M44, also known as the Beehive Cluster. Dust in our own Solar System reflecting sunlight creates the faint band of Zodiacal Light emerging from the lower right corner of the frame. Just put your cursor over the picture for help with identifications.
Of course, bright Mars can still be found in the western evening skies and tonight wanders near the crescent Moon.MareKromium
(12 voti)
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Spacer.jpgHappy Easter 2008! (by Giorgio Picciau)56 visiteUn Saluto ed un Augurio "UFO-Roboticamente Spaziali" di Buona Pasqua 2008, a Tutti gli Amici di Lunar Explorer Italia, da parte del bravissimo ed immaginifico "Artista del Cosmo", Giorgio Picciau!
Un grande complimento a Lui, per questa bella e romantica "Visione" che - ne siamo certi - ci riporterà tutti indietro di qualche anno, "...quando le cose erano (forse) più semplici ed i cieli (di certo) erano più limpidi".
MareKromium
(12 voti)
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LunarEclipses.jpgEclipses...54 visiteCaption NASA, da "NASA - Picture of the Day", del 29 Febbraio 2008:"Welcome to the extra day in the Gregorian Calendar's leap year 2008! To celebrate, consider this grid of lunar eclipse pictures - starting in leap year 1996 and ending with February's eclipse - with the date in numerical year/month/day format beneath each image. Mostly based on visibility from a site in Turkey, the 3x4 matrix includes 11 of the 13 total lunar eclipses during that period, and fills out the grid with the partial lunar eclipse of September 2006. Still, as the pictures are at the same scale, they illustrate a noticeable variation in the apparent size of the eclipsed Moon caused by the real change in Earth-Moon distance around the Moon's elliptical orbit. The total phases are also seen to differ in color and darkness. Those effects are due to changes in cloud cover and dust content in the atmosphere reddening and refracting sunlight into Earth's shadow. Of course, the next chance to add a total lunar eclipse to this grid will come at the very end of the decade".MareKromium
(12 voti)
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The-Red-Moon.jpgEclipsed Moonlight (by Jerry Lodriguss)56 visiteCaption NASA:"Moon watchers blessed with clear skies over the Americas, Europe, Africa and Western Asia enjoyed a total lunar eclipse.
Catching eclipsed moonlight, astroimager Jerry Lodriguss offers this view of the inspiring celestial event with the shadowed Moon accompanied by wandering planet Saturn at the left, and bright Regulus, alpha star of the constellation Leo, above.
The engaging composite picture was made by combining a filtered, telephoto image of the Moon and surrounding starfield with a telescopic exposure. The combination dramatizes the reddened moonlight while clearly showing the variation of brightness and color in Earth's not-so-dark shadow across the lunar surface".MareKromium
(12 voti)
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Zodiacal_beletsky_big.jpgZodiacal Light and the False Dawn54 visite"...Do not pronounce judgment before the time, before the Lord comes, who will bring to light the things now hidden in darkness and will disclose the purposes of the heart..."
- 1 Corinthians 4:5MareKromium
(12 voti)
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Peace_of_mind.jpgPeace of Mind57 visiteMareKromium
(12 voti)
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Vortex.jpgInside the Vortex...60 visiteFix your camera to a tripod, lock the shutter open, and you can make an image of star trails - graceful concentric arcs traced by the stars as planet Earth rotates on its axis. Of course, the length of the star trails will depend on the exposure time. While exposures lasting just five minutes produce a significant arc, in about 12 hours a given star would trace out half a circle. But in any long exposure, the background glow from light-polluted skies can build up to wash out the trails. Still, astronomer Josch Hambsch produced this stunning composite of star trails around the South Celestial Pole with an effective "all night" exposure time of almost 11 hours. To do it, he combined 128 consecutive five minute long digital exposures recorded in very dark night skies above Namibia. In his final image, the background glow on the right is due in part to the faint, arcing Milky Way.
(12 voti)
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Lunar Eclipse.jpgLunar Eclipse over England63 visiteDa "NASA - Picture of the Day", dell'11 Settembre 2006:"Last Thursday - Sept., 7th, 2006 -, part of our Moon turned dark. The cause, this time, was not a partial lunar phase - the Moon was full - but rather that part of the Moon went into Earth's shadow. The resulting Partial Lunar Eclipse was visible from the Eastern Atlantic Ocean through Europe, Africa and Asia and into the Western Pacific Ocean. The darkest part of the Lunar Eclipse, when part of the Moon was completely shielded from Sunlight, lasted about 90 minutes.
Pictured here, a partially eclipsed Moon is seen rising over an estate in Huddersfield, England. The above image was taken far away from the house in the foreground, as only this would allow it to appear as angularly small as the half-degree Moon far in the background. A setting twilight Sun lit the foreground. The next eclipse of the Moon will occur in March 2007".
(12 voti)
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Perseid-1.jpgShooting Star (1)64 visiteL'immagine è sicuramente bella, ma quello che vorremmo farVi notare è la tessitura della striscia lasciata dalla "stella cadente" la quale, come ben si vede (anche senza operare ingrandimenti), contiene "nodi" (modesti rigonfiamenti dovuti, probabilmente, a perdita/consunzione di materiale a seguito dell'attrito durante la caduta del frammento di Corpo Celeste attraverso l'atmosfera) e "brillamenti" (delle vere e proprie "fiammate" che si avviano, di regola, in corrispondenza dei "nodi" e che indicano cambi di temperatura - ergo di luminosità - del Corpo in questione).
(12 voti)
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