Sitios lindos de Portugal - Albufeira da barragem de Vilarinho das Furnas

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Albufeira da Barragem de Vilarinho das Furnas

Vilarinho da Furna (normalmente chamada de Vilarinho das Furnas) era uma aldeia situada no concelho de Terras de Bouro, no distrito de Braga. Com a construção da barragem de Vilarinho das Furnas em 1971 a aldeia ficou submersa, mas em anos de seca extrema, com o nível da albufeira baixo, é possível ainda ver os restos da aldeia. A Albufeira da Barragem de Vilarinho das Furnas cobre 77 km2 e é cercada de uma beleza natural que torna o lugar óptimo para desfrutar da natureza e de actividades ao ar-livre.

Autor : João Leitão

Sitios lindos de Portugal - Jardim Publico - Evora

"Jardim Publico"

Antonio Vivaldi - "Le quattro stagione - Autunno" - Diapositive - Musica

"Autunno"

Astronomy picture of the day - 2017 September 22 - Solar Eclipse Solargraph

Solar Eclipse Solargraph 
Image Credit & Copyright: Chuck Bueter (Nightwise.org)

Explanation: Today is the September equinox. Heading south, the Sun's path through the sky will cross the celestial equator at 20:02 UT. Of course the equinox date results in (mostly) equal night and day all over planet Earth. But on August 21 the Sun's path through the sky found a little extra-night for some. Made with a drink can pinhole camera and light-sensitive paper, this creative solargraph follows the Sun's path on that date. An all-day exposure, it traces the Sun's arc still rising high in northern skies, aligned with a panoramic snapshot of the local landscape at the bottom. The gap in the arc represents the duration of the partial and total phases of the solar eclipse in clear skies over Lowman, Idaho, USA. There, the extra-night (totality) lasted for about 2 minutes. The broad gap in the Sun's arc also covers the loss of sunlight during the more extended partial eclipse phases.

Imagens do Mundo - Lua e Castelo de S. Jorge (Portugal)

A lua ilumina o Castelo de São Jorge. Lisboa, Portugal.

ARMANDO FRANCA AP

Imagens do Mundo - Vista de uma praia em Alexandria (Egipto)

Vista de uma praia em Alexandria (Egipto).

MOHAMED HOSSAM EFE

Imagens do Mundo - Hong Kong, China

Um ferry navega até à Ilha de Hong Kong, China.

ANTHONY WALLACE AFP

Astronomy picture of the day - 2017 September 21 - A September Morning Sky

A September Morning Sky 
Image Credit & Copyright: Tamas Ladanyi (TWAN)

Explanation: The Moon, three planets, and a bright star gathered near the ecliptic plane in the September 18 morning sky over Veszprem Castle, Hungary. In this twilight skyscape, Mercury and Mars still shine close to the eastern horizon, soon to disappear in the glare of the Sun. Regulus, alpha star of the constellation Leo, is the bright point next to a waning crescent Moon, with brilliant Venus near the top of the frame. The beautiful morning conjunction of Moon, planets, and bright star could generally be followed by early morning risers all around planet Earth. But remarkably, the Moon also occulted, or passed directly in front of, Regulus and each of the three planets within 24 hours, all on September 18 UT. Visible from different locations, timing and watching the lunar occultations was much more difficult though, and mostly required viewing in daytime skies.

Sitios lindos de Portugal - Praça do Giraldo - Evora

Praça do Giraldo

Astronomy picture of the day - 2017 September 19 - Veil Nebula: Wisps of an Exploded Star

Veil Nebula: Wisps of an Exploded Star 
Image Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

Explanation: Wisps like this are all that remain visible of a Milky Way star. About 7,000 years ago that star exploded in a supernova leaving the Veil Nebula. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to people living at the dawn of recorded history. Today, the resulting supernova remnant, also known as the Cygnus Loop, has faded and is now visible only through a small telescope directed toward theconstellation of the Swan (Cygnus). The remaining Veil Nebula is physically huge, however, and even though it lies about 1,400 light-years distant, it covers over five times the size of the full Moon. The featured picture is a Hubble Space Telescope mosaic of six images together covering a span of only about two light years, a small part of the expansive supernova remnant. In images of the complete Veil Nebula, even studious readers might not be able to identify the featured filaments.