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  • richardmitnick 7:35 am on June 27, 2018 Permalink | Reply
    Tags: Anglo-Australian Telescope, , , , , ,   

    From COSMOS Magazine: “Universities gang up to take over major telescope” 

    Cosmos Magazine bloc

    From COSMOS Magazine

    27 June 2018
    Geetanjali Rangnekar

    Siding Spring Observatory

    From July 1, the Australian National University (ANU), based in Canberra, will lead a conglomerate of 13 institutions to run the Anglo-Australian Telescope (AAT), located in Coonabarabran in the state of New South Wales.

    AAO Anglo Australian Telescope near Siding Spring, New South Wales, Australia, Altitude 1,100 m (3,600 ft)

    Australia’s largest optical telescope, the AAT has been operational for more than four decades. When it began operating, the 3.9 metre device was the first of its kind to map the southern hemisphere skies.

    Housed at the picturesque Siding Spring Observatory, it has taken part in a multitude of missions that have added to humanity’s knowledge of the dark expanse out there.

    These include one named Galactic Archaeology with Hermes (GALAH), which involved mapping hundreds of thousands of stars in the Milky Way. Another, the 2dF Galaxy Redshift Survey, measured changes in the light emitted by bodies in the northern and southern galactic hemispheres.

    The current restructure allows the ANU to take over operation of the telescope from the Australian Astronomical Observatory.

    This will allow Australian astronomers and universities to have unprecedented access to the highly sought-after advanced instruments, including a spectroscope capable of simultaneously observing 400 cosmic bodies. The move will also enable Australian scientists to access high-tech optic telescopes situated in Chile operated by the European Southern Observatory.

    The academic partnerships will include universities from Victoria, New South Wales, Tasmania, Queensland and Western Australia.

    See the full article here .

    Please help promote STEM in your local schools.

    Stem Education Coalition

  • richardmitnick 12:45 pm on April 21, 2018 Permalink | Reply
    Tags: Anglo-Australian Telescope, , , , , Christian Sasse, , ,   

    From EarthSky: “Milky Way spins across the sky” 



    April 16, 2018
    Deborah Byrd

    This composite – centered on celestial south – is made of images taken hourly from outside the dome of the Anglo-Australian Telescope at Siding Spring Observatory.

    Composite image by Christian Sasse.

    Christian Sasse emailed EarthSky on April 11, 2018, from Australia’s Siding Spring Observatory and wrote:

    “A spectacular night at the Anglo-Australian Telescope (3.9-meter [13-foot] mirror). This composite – made of images taken every hour from 7 p.m. until midnight – shows the apparent movement of the Milky Way across the sky. See Jupiter on the left, leaving a discrete trail as it moves towards the dome until midnight. Top is location of the celestial South Pole.”

    AAO Anglo Australian Telescope near Siding Spring, New South Wales, Australia, Altitude 1,100 m (3,600 ft)

    Siding Spring Mountain with Anglo-Australian Telescope dome visible near centre of image at an altitude of 1,165 m (3,822 ft)

    As you can see, Christian has a novel approach to acquiring photographic images of star trails. His images have been featured in National Geographic and Nature. His Ph.D. in optics has helped shape his photography. You can visit him on his Facebook page, or on YouTube, or on Twitter (@sassephoto).

    Article by Christian Sasse, originally published at his blog, The Cosmic Clock.

    The Earth rotates or spins on its axis about every 24 hours, causing an apparent movement of the stars overhead by about one-quarter of a degree per minute. If we leave a camera in a fixed position and point upwards, open the shutter in bulb mode and let the Earth rotate under the stars, we will create an image with star trails. Similarly we could take shorter exposures and superimpose (stack) the images with image processing software.

    Most images of star trails taken in the Northern Hemisphere show a pattern similar to the one below taken in Arches National Park, Utah, in spring of 2016.

    Star trails at Arches National Park via Christian Sasse

    Bottom line: Milky Way composite image by Christian Sasse.

    Read more about Christian Sasse’s photographic process: A novel approach to star trails

    See the full article here .

    Please help promote STEM in your local schools.

    STEM Icon

    Stem Education Coalition

    Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. “Being an EarthSky editor is like hosting a big global party for cool nature-lovers,” she says.

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