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The Australia Telescope Compact Array.
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 The Australia Telescope Compact Array. During our visit to Lake Keepit, we did a day trip to Narrabri and checked out the Radio Telescope there. I will post the pertinent information in the comments section. Taken around mid-day, hand held at 1/100th f20.0 and ISO-100.
© John Connolly
Nikon D80 Digital ...
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 An image from the telescope. Another shot.
© John Connolly
Nikon D80 Digital ...
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John Connolly
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member since: 2/28/2003
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The vital statistics of this amazing device are as follows There are 6 “dishes”, five of which can travel on the heaviest duty rail track ever produced in Australia. The Track width is 3 metres ( or 9.85 feet). The rail track is laid on thousands of tonnes of granite ballast, that had to be accurate to within plus or minus 0.5 millimetres from end-to-end while accommodating the curvature of the Earth. The diameter of each dish is 22 metres (about 72.1 feet), and each dish and assembly weights 270.0 tonnes. The focal length of the dish is 7 Metres (21.3 feet), and the dishes can be tilted up to 78º from vertical (it takes 4 minutes), and each dish can do a 360º rotation in 9 minutes. Each dish has a pointing accuracy of 2 arcseconds rms, and can travel along the 3 Km rail track at 4 Km per hour. It is an amazing scientific display, and well worth the visit.
4/16/2012 12:49:05 PM
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Tiia Vissak
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member since: 9/1/2007
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very cool!
4/16/2012 1:04:20 PM
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Bobby Ray Goodman
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member since: 3/23/2006
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I like to have that hooked up to Cell Phone,maybe then they won't drop my calls.Hi John,Fantastic capture my friend.Huge Radio Telescopes!!!!!!
4/16/2012 1:09:28 PM
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Mike Clime
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member since: 9/4/2007
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Very cool captures and great information, John! Wonder if they have heard anything beside just taking photos.
4/16/2012 1:17:41 PM
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Debbie Bray
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member since: 7/17/2011
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I had no idea those dishes were on tracks and could move, John! The second image, like a fireball, where was that aimed at? Hate to think it's coming our way? Or were they aiming at hell? Heheee!!
4/16/2012 1:20:58 PM
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Hendrik Storme
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member since: 8/14/2005
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Interesting image and information. Wonderful image!!!
4/16/2012 2:05:36 PM
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Tammy M. Anderson
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member since: 8/13/2007
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Interesting captures and info, John. Great find.
4/16/2012 2:19:56 PM
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John Connolly
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member since: 2/28/2003
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Thank you Tiia, Bobby, Mike, Debbie, Hendrik and Tammy for your kind comments. For those interested it the telescopes image, this is its story.The image was made with the Australia Telescope Compact Array, and the Parkes radio telescope, and it shows a structure called GSH 277+00+36 - a void in the atomic hydrogen more than 2,000 light-years across. It lies 21,000 light-years from the Sun on the edge of the Sagittarius-Carina spiral arm in the outer Milky Way. The void was probably formed by winds and supernova explosions from about 300 massive stars over the course of several million years. It eventually grew so large that it broke out of the disk of the Galaxy, forming a "chimney". GSH 277+00+36 is one of only a handful of chimneys known in the Milky Way and the only one known to have exploded out of both sides of the Galactic plane. It extends more than 3,000 light years out of the disk of the Galaxy.
4/16/2012 2:40:15 PM
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Wm Nosal
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COOL Shot, John! Thanks For The Information
4/16/2012 2:58:50 PM
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Lorraine A. Cook
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member since: 1/16/2005
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Technology at its finest...and what a SHOW of PHOTOS...Thank You for this SUPERB image and example of what these telescopes do, John!!<:))My 1993 Explorer 'broke down' last night...George had it out to mail bills and parked in a building's lot to walk Lucky. Long story short...it was towed to the mechanic (George got in around 3 AM). Mechanic says there is a short... and I may need a starter. I felt so bad for hubby. He didn't have his cellphone and had to walk home (with Lucky)...worries me at that time of night.
4/16/2012 3:28:19 PM
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Monnie Ryan
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Impressive, to say the least! Great job with your camera, too!
4/16/2012 3:28:39 PM
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David K. Hurt
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member since: 4/20/2011
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Impressive, interesting NASA also has a dish network in the Owens Valley in California. Love the shot. Looks like a fun photo shoot.
4/16/2012 3:36:30 PM
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Douglas Perry
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member since: 8/6/2005
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ET -Phone home. He would if he could figure out his cell phone bill!
4/16/2012 4:12:28 PM
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Isabel C. Zepeda
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JohnVery impressive site and picture Ysa...
4/16/2012 4:16:33 PM
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Carol L. Fowler
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member since: 10/7/2008
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So- any UFOs answer back??? Do you get any UFOs there or do you tell them all to come to our desert??? Ha!! Fascinating!!!
4/16/2012 4:41:56 PM
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Tammy Espino
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What awesome looking machines and information and capture! :)
4/16/2012 4:54:58 PM
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Claudia Kuhn
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Quite a set up out there. Cool captures John
4/16/2012 5:13:37 PM
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David Phalen
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member since: 12/12/2004
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Excellent light, colors, clarity and info!! They certainly get some amazing photos with radio telescopes!!
4/16/2012 5:47:44 PM
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Martha R. Mazon
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member since: 4/6/2008
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Excellent portrayal of this imposing telescope, John! I like the way the bright white paint is actually reflecting blue sky. Perfectly composed!
4/16/2012 6:54:10 PM
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Thomas E. Hinds
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John, this is so interesting to me as I have visited our radio telescope cluster here in central New Mexico several times, the VLA (Very Large Array). Once I was fortunate to get an information laced tour (which is relatively rare). I'm not sure if I heard the guide correctly, but I think I did, when she said that the telescopes were so sensitive (and there are twenty something here) that if you were to transfer all the data from the 40 or so years they've been collecting it here into energy it would oompute to less than one snow flake hitting the earth! Wow! Seems impossible! Great capture and info!Tom
4/16/2012 6:56:23 PM
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Renee Doyle
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member since: 1/16/2005
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You keep showing me parts of Australia I have never seen John!! Thanks for the info too ..... wonderfully composed capture!!
4/16/2012 9:01:49 PM
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Ann Coates
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Fascinating image and information John.
4/16/2012 9:05:18 PM
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Barbara Waldoch
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Terrific capture, John!
4/17/2012 2:17:47 AM
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Stan J. Bendkowski
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Great capture and presentation, John!
4/17/2012 2:41:59 AM
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Stephen Zacker
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Having worked around antennas like this my whole career, I really like this image
4/17/2012 3:26:01 AM
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Ellen Hodges
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Wonderful capture with a gorgeous sky! What a great sky shot, too!!
4/17/2012 8:02:23 AM
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Marijana Fajgl
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Very impressive captures, John and interesting info!
4/17/2012 9:44:36 AM
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Stan Kwasniowski
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John, wonderful
4/17/2012 9:50:27 AM
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Amalia Sylvia Arriaga Salinas
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Wonderful image and information John!, Amalia
4/17/2012 11:16:52 AM
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Katherine Kuhn
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Great image & very interesting info, John!
4/17/2012 12:26:03 PM
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John Connolly
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member since: 2/28/2003
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Thank you all for your great comments and the interest shown in this image, it is appreciated!
4/17/2012 1:25:36 PM
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Avril Young
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Heavens how interesting is this..thanks for the info...the 2nd photo looks like a ball of fire... outstanding interesting photos John!!
4/17/2012 9:08:29 PM
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Inge Linden
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Excellent light, colors, clarity and info!
4/18/2012 1:44:14 AM
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Marilyn K. Lincecum
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Great shot and information, very interesting.
4/18/2012 10:36:47 AM
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Emile Abbott
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WOW to both captures and presentations and the fantastic information. I had no idea!!!
4/18/2012 11:34:38 AM
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Nancy L. Green
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I love the white against that beautiful sky, VERY well composed and captured!! I understand there have been some pretty spectacular sun spots very recently, I wonder if the telescope got any shots of that? <><
4/18/2012 12:19:01 PM
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John Connolly
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member since: 2/28/2003
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Thanks a lot Avril, Inge, Marilyn, Emile and Nancy for your thoughts on this image! Actually the telescopes record the minute radio frequencies the hydrogen gases emit, I have problems getting my head around such technology!
4/18/2012 2:36:45 PM
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Laura E. Swan
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member since: 1/22/2008
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I bet "E.T." could not only PHONE HOME from there he could SEE HOME, too! Wow! I'd love to tour these and learn all about them. Wonderful adventure, Brother John!!! -Sis :D
4/21/2012 7:21:52 PM
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Heather Loewenhardt
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Love the repeating patten John. Very interesting information.
4/21/2012 9:41:54 PM
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John Connolly
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member since: 2/28/2003
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Many thanks Sister Laura and Heather, previously I was taken on a tour inside one of the dish assemblies, but it was too cramped and dark to do any photography! They are just wall to wall computers!
4/22/2012 2:30:54 PM
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