| Piú votate - The Universe Inside |
The_Moon_and_Venus.jpgCrescent Moon and Venus54 visiteCaption NASA, da "NASA - Picture of the Day" del giorno 6 Marzo 2009:"Last Friday (such as February, 27th, 2009), the Moon and Venus shared the early evening sky in a beautiful Conjunction.
Separated by only about 2°, they also were both in a crescent phase.
Just like our Moon, Venus can appear as a full disk or a thin crescent. Frequently the brightest object in the post-sunset or pre-sunrise sky, Venus is so small that it usually requires binoculars or a small telescope to clearly see its phase.
This telescopic image of Friday's Conjunction shows off the similar crescent phases, with the tiny crescent Venus at the upper right".MareKromium
(8 voti)
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PurpleRain.jpgPurple Rain (by Marco Faccin)55 visitenessun commentoMareKromium
(8 voti)
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Venus___Jupiter.jpgChilean Skyscape59 visitenessun commentoMareKromium
(8 voti)
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Pseudomars.jpgPseudo-Mars (by Dr Marco Faccin)67 visitenessun commentoMareKromium
(8 voti)
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DoubleSun.jpgLens Flare or something else?!? (credits: Dr G. Barca)74 visiteUn Sole brillante e velato, domina il cielo sopra la Cittadina Ligure di Albissola. Ma che cosa c'è accanto a quel Sole Estivo?
Il Dr Barca, quando ha scattato la fotografia, riferisce di NON AVER visto nulla e quindi, a nostro parere, le possibilità sono solo due:
1) si tratta di un effetto ottico noto come "Lens Flare", in questo caso davvero molto simile a quegli effetti che, presenti in svariati frames Apollo, fecero parlare di UFO per anni ed erroneamente oppure...
2) ...oppure diteci Voi di che cosa si potrebbe trattare...MareKromium
(8 voti)
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Mist-of-Time.jpgThe Mist of Time (by Roberto Tremolada)54 visitenessun commentoMareKromium
(8 voti)
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The-MoonSlide.jpgFrom Light, to Light (by Stefan Seip)55 visiteCaption NASA:"No special filters - or even a telescope - are required to enjoy a leisurely Lunar Eclipse. In fact, watched from all over the night side of planet Earth, these regular celestial performances have entertained many casual skygazers.
Still, this eye-catching picture of a Lunar Eclipse may look unfamiliar.
To make it, astroimager Stefan Seip set his camera on a tripod and locked the shutter open during the Total Lunar Eclipse of March 3, 2007.
The resulting image records the trail of the Moon (and narrower trails of stars) sliding through the night. Reddish hues common during the total phase of a Lunar Eclipse, are evident along the darker, slimmer portion of the Moon trail. (...)".MareKromium
(8 voti)
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Venus_Jupiter.jpgVenus and Her Father, in the Morning Skies...63 visite"...Ut desint vires, tamen laudanda Voluntas est..."
(Ovidio)
"...Sebbene gli sforzi (per arrivare a conseguire qualcosa) possano non bastare, la Volontà (di raggiungere l'obbiettivo) va comunque apprezzata..."MareKromium
(8 voti)
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Mars_Orion.jpgMars and Orion over Monument Valley54 visite"...Consuetudine levior est labor..."
(Livio)
"...Con l'abitudine, il (ogni) lavoro appare meno pesante..."MareKromium
(8 voti)
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TheMoon_Mars.jpgCompanions56 visitenessun commentoMareKromium
(8 voti)
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Iridescent_Cloud.jpgIridescent Cloud98 visiteCaption NASA:"Why would a cloud appear to be different colors? A relatively rare phenomenon known as "Iridescent Clouds" can show unusual colors vividly or a whole spectrum of colors simultaneously. These clouds are formed of small water droplets of nearly uniform size. When the Sun is in the right position and mostly hidden by thick clouds, these thinner clouds significantly diffract sunlight in a nearly coherent manner, with different colors being deflected by different amounts. Therefore, different colors will come to the observer from slightly different directions. Many clouds start with uniform regions that could show iridescence but quickly become too thick, too mixed, or too far from the Sun to exhibit striking colors.
This iridescent cloud was photographed above Boulder, Colorado last week".MareKromium
(8 voti)
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Aurora_Borealis.jpgAurora Borealis over Chena Lakes55 visiteCaption NASA:"Sometimes, after your eyes adapt to the dark, a spectacular sky appears. In this case, a picturesque lake lies in front of you, beautiful green aurora flap high above you, brilliant stars shine far in the distance, and, for a brief moment, a bright meteor streaks by. This digitally fused breathtaking panorama was captured late last month across one of the Chena Lakes in North Pole, Alaska, USA, and includes the Pleiades open cluster of stars on the image right. The shot is unusual not only for the many wonders it has captured simultaneously, but because lakes this far north tend to freeze and become non-reflecting before a sky this dark can be photographed".MareKromium
(8 voti)
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