( <= green bean
take this bird brain on a walk ( ゚∀ ゚)
The Magnetic Field of the Whirlpool Galaxy : Do magnetic fields always flow along spiral arms? Our face-on view of the Whirlpool Galaxy (M51) allows a spectacularly clear view of the spiral wave pattern in a disk-shaped galaxy. When observed with a radio telescope, the magnetic field appears to trace the arms’ curvature. However, with NASA’s flying Stratospheric Observatory for Infrared Astronomy (SOFIA) observatory, the magnetic field at the outer edge of M51’s disk appears to weave across the arms instead. Magnetic fields are inferred by grains of dust aligning in one direction and acting like polaroid glasses on infrared light. In the featured image, the field orientations determined from this polarized light are algorithmically connected, creating streamlines. Possibly the gravitational tug of the companion galaxy, at the top of the frame, on the dusty gas of the reddish star-forming regions, visible in the Hubble Space Telescope image, enhances turbulence – stirring the dust and lines to produce the unexpected field pattern of the outer arms. via NASA
Galaxies and the South Celestial Pole : The South Celestial Pole is easy to spot in star trail images of the southern sky. The extension of Earth’s axis of rotation to the south, it’s at the center of all the southern star trail arcs. In this starry panorama streching about 60 degrees across deep southern skies the South Celestial Pole is somewhere near the middle though, flanked by bright galaxies and southern celestial gems. Across the top of the frame are the stars and nebulae along the plane of our own Milky Way Galaxy. Gamma Crucis, a yellowish giant star heads the Southern Cross near top center, with the dark expanse of the Coalsack nebula tucked under the cross arm on the left. Eta Carinae and the reddish glow of the Great Carina Nebula shine along the galactic plane near the right edge. At the bottom are the Large and Small Magellanic clouds, external galaxies in their own right and satellites of the mighty Milky Way. A line from Gamma Crucis through the blue star at the bottom of the southern cross, Alpha Crucis, points toward the South Celestial Pole, but where exactly is it? Just look for south pole star Sigma Octantis. Analog to Polaris the north pole star, Sigma Octantis is little over one degree fom the the South Celestial pole. via NASA
you MONETISE miette?? you make her pay to view posts like the youtube premium??? oh jail! jail for staff for One Thousand Years!!!
European Robin (Erithacus rubecula)
© James Yates Photo
Canário-da-terra/Saffron Finch
Sicalis flaveola
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Estou participando de um concurso fotográfico. As fotos mais curtidas ganham. É só clicar nos links e curtir minhas fotos: https://abre.ai/dtP2 e https://abre.ai/dtP1
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I’m participating at a photographic contest. The pictures with more likes will win. Click on links to like my pictures: https://abre.ai/dtP2 and https://abre.ai/dtP1
(please do click on the source to watch it on youtube if you want to see it in full quality)
The Ghoul of IC 2118 : Inspired by the halloween season, this telescopic portrait captures a cosmic cloud with a scary visage. The interstellar scene lies within the dusty expanse of reflection nebula IC 2118 in the constellation Orion. IC 2118 is about 800 light-years from your neighborhood, close to bright bluish star Rigel at the foot of Orion. Often identified as the Witch Head nebula for its appearance in a wider field of view it now rises before the witching hour though. With spiky stars for eyes, the ghoulish apparition identified here seems to extend an arm toward Orion’s hot supergiant star. The source of illumination for IC 2118, Rigel is just beyond this frame at the upper left. via NASA