Tag: h

• A Hubble Study of the Peculiar Asymmetry of NGC 949 by NASA Goddard Space Flight Center Via Flickr: This image provides the clearest ever view of galaxy NGC 949, which lies over 30 million light-years away in the constellation of Triangulum. The galaxy has an unusual shape, made more obscure due to its inclination. From our point of view, it is difficult to discern exactly what type of galaxy NGC 949 is, but it is certainly a disk galaxy of some kind, most likely a spiral. NGC 949 was first discovered by Sir William Herschel on September 21, 1786, using an 18.7-inch reflecting telescope. The galaxy was one of about 3,000 objects Herschel cataloged as “nebulae” during an intense and systematic deep sky survey, the results of which eventually formed the bulk of the New General Catalogue (NGC). Taken with Hubble’s Advanced Camera for Surveys (ACS), this image shows extraordinary detail. This detail allows us to see a strange asymmetric alignment in the dark lanes of dust that snake across the galaxy. The top-right half of the galaxy appears considerably more marbled with dust in this image; a curious observation explained by stars tending to favor locations towards the center of a galaxy, and dust preferring almost invariably to reside along the galactic plane. When a galaxy is inclined as NGC 949 is, some regions — in this case the top-right — are tipped toward us and the light from the stars we see in these regions has had to travel through more dust. This causes the light to appear redder — the result of the same process that gives the sun’s light a red hue at dusk — or else disappear entirely, making the dust appear more prominent on that side of the galaxy. In the part tipped away from us, the light from the stars has had to pass through much less dust to reach us, so it appears brighter, and the dust is much less prominent. Were it possible to view NGC 949 from the opposite side, the apparent alignment of the dust would be reversed. The scientific advantages of this effect were recently displayed in suitably stunning style in the M31 PHAT mosaic, which allowed astronomers to produce a partial three-dimensional dust map of M31 four times clearer than any previously attempted. Credit: ESA/Hubble & NASA NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram

  2015-08-27

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  via Tumblr http://ift.tt/1PV761w

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  + Art, Photos, tumblr

  + Art, Galaxy, h, hubble, nasa, NASA GODDARD, NGC 949, Photos, Space, tumblr

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• Distant Origin – I last photographed the Natural History Museum a little over a year ago. At the time, capturing the central hall from the first floor while the place was empty was partly down to heavy rain on the morning I visited, and partly down to sheer luck. I’m still happy with the image I captured, but always wished I could shoot the hall from one of its upper corners; besides conveying the enormity of the museum’s scale, the perspective provides a better vantage point of the lower concourse, as well as a closer look at the incredible detail in the museum’s brickwork and the ornate architecture decorating the hall. I’d also always wished I could shoot on a sunnier day and capture a warmer tone inside the location. I returned to the museum on a busy day, eager to tackle the challenge of removing crowds of people from an image. The technique involved continuous shooting over half an hour, and then applying script settings in Photoshop and comparing 60 shots to identify and retain only the consistent elements – the consistent elements essentially being the building itself. I made the project trickier for myself because I was also eager to capture and blend multiple exposures – brighter exposures to ensure a sharp, clean finish to the detail in the shadows, and darker exposures to preserve as much detail as possible near the brightly lit windows – but the end result is almost exactly the image I’d had in my head: a crowded location made eerily empty in the middle of the day, leaving only the stunning 19th-century architecture of the building and the warm sunlight pouring through its windows. * * * You can also connect with me on Facebook, 500px, Google+ and Instagram. by Otto Berkeley via http://flic.kr/p/vZn38f

  2015-08-09

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  via Tumblr http://ift.tt/1UwlG22

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  + Art, Photos, tumblr

  + Architecture, Art, city, england, Flickr, h, History, London, museum, old, Photos, stairs, sunlight, Sunshine, tumblr, UK

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• Vienna Opera by christianthuer1

  2015-06-16

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  via Tumblr http://ift.tt/1Tpzvjg

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  + 500px, ancient, Architecture, Art, art, Beautiful, Blue, building, cars, centre, city, colorful, europe, h, IFTTT, Photos, photos, tumblr, vienna

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