Comments on: A Midsummer Night's Dream: NGC 4618 and NGC 4625 by Martin Winder/Dietmar Hager http://www.universetoday.com/2008/07/28/a-midsummer-nights-dream-ngc-4618-and-ngc-4625-by-martin-winder/ Space and astronomy news Sun, 8 Nov 2009 12:45:29 -0600 http://wordpress.org/?v=2.8.5 hourly 1 By: Tammy Plotner http://www.universetoday.com/2008/07/28/a-midsummer-nights-dream-ngc-4618-and-ngc-4625-by-martin-winder/comment-page-1/#comment-27632 Tammy Plotner Wed, 30 Jul 2008 21:23:15 +0000 http://www.universetoday.com/?p=16088#comment-27632 So... We're all agreed. It's sushi, calamari, cajun crawfish and salad with crispy fresh prawns for dinner! I thank you for the nice comments and I also appreciate Jon's correction. (now fixed and sorry it took so long!) I went over and over the photo plates and info and it really is an oddity how they appear to change size and appearance between images! What's even stranger is the star-field similarities, too - again affected by the medium. Too cool! So… We're all agreed. It's sushi, calamari, cajun crawfish and salad with crispy fresh prawns for dinner!

I thank you for the nice comments and I also appreciate Jon's correction. (now fixed and sorry it took so long!) I went over and over the photo plates and info and it really is an oddity how they appear to change size and appearance between images! What's even stranger is the star-field similarities, too – again affected by the medium. Too cool!

]]> By: john http://www.universetoday.com/2008/07/28/a-midsummer-nights-dream-ngc-4618-and-ngc-4625-by-martin-winder/comment-page-1/#comment-27535 john Wed, 30 Jul 2008 07:19:57 +0000 http://www.universetoday.com/?p=16088#comment-27535 Tammy I love your article. I was impressed with your professional style softened by your easy to read clarity. I also think there is a similarity to a well cooked crustacean tails (shrimps, prawns, lobsters, crayfish), yummy food and photography. Tammy I love your article. I was impressed with your professional style softened by your easy to read clarity. I also think there is a similarity to a well cooked crustacean tails (shrimps, prawns, lobsters, crayfish), yummy food and photography.

]]> By: Jon Hanford http://www.universetoday.com/2008/07/28/a-midsummer-nights-dream-ngc-4618-and-ngc-4625-by-martin-winder/comment-page-1/#comment-27425 Jon Hanford Tue, 29 Jul 2008 03:10:37 +0000 http://www.universetoday.com/?p=16088#comment-27425 Tammy, thanks for another great article on an unusual and photogenic Arp pair. After perusing Palomar DSS images of the pair though, I noticed that NGC 4618 is actually the larger galaxy in the picture & NGC 4625 the smaller of the two. I, too, was initially confused by the correct IDs but after checking the Gil de Paz paper (arXiv:astro-ph/0506357) Figs 1a & b, it clearly shows which is which. What's remarkable here though is in Fig 1a, the GALEX UV image shows NGC 4625 as somewhat larger in apparent diameter than NGC 4618, while Fig 1b features a POSS II blue image showing just the opposite! Truly a fascinating difference. I think this is a good example of why astronomers examine objects at different wavelengths to determine their overall characteristics. All is not what it seems in the optical part of the EM spectrum. Thanks again for highlighting this odd pair & the great image by Winder & Hager. Tammy, thanks for another great article on an unusual and photogenic Arp pair. After perusing Palomar DSS images of the pair though, I noticed that NGC 4618 is actually the larger galaxy in the picture & NGC 4625 the smaller of the two. I, too, was initially confused by the correct IDs but after checking the Gil de Paz paper (arXiv:astro-ph/0506357) Figs 1a & b, it clearly shows which is which. What's remarkable here though is in Fig 1a, the GALEX UV image shows NGC 4625 as somewhat larger in apparent diameter than NGC 4618, while Fig 1b features a POSS II blue image showing just the opposite! Truly a fascinating difference. I think this is a good example of why astronomers examine objects at different wavelengths to determine their overall characteristics. All is not what it seems in the optical part of the EM spectrum. Thanks again for highlighting this odd pair & the great image by Winder & Hager.

]]> By: Tammy Plotner http://www.universetoday.com/2008/07/28/a-midsummer-nights-dream-ngc-4618-and-ngc-4625-by-martin-winder/comment-page-1/#comment-27402 Tammy Plotner Mon, 28 Jul 2008 21:02:55 +0000 http://www.universetoday.com/?p=16088#comment-27402 mmmm... sushi!! i think the appearance of "being about the same size" is because photographers tend to use the same amount of field in an image. it would be fun to constrict them to a certain amount of arc minutes so we could get a better look at how big they really are! mmmm… sushi!!

i think the appearance of "being about the same size" is because photographers tend to use the same amount of field in an image. it would be fun to constrict them to a certain amount of arc minutes so we could get a better look at how big they really are!

]]> By: Dave S http://www.universetoday.com/2008/07/28/a-midsummer-nights-dream-ngc-4618-and-ngc-4625-by-martin-winder/comment-page-1/#comment-27395 Dave S Mon, 28 Jul 2008 19:58:25 +0000 http://www.universetoday.com/?p=16088#comment-27395 Why do so many galaxies appear to be about the same size? I know some are bigger and some are smaller, but if you squint a little they all appear to be about the same size. Why do so many galaxies appear to be about the same size? I know some are bigger and some are smaller, but if you squint a little they all appear to be about the same size.

]]> By: LLDIAZ http://www.universetoday.com/2008/07/28/a-midsummer-nights-dream-ngc-4618-and-ngc-4625-by-martin-winder/comment-page-1/#comment-27393 LLDIAZ Mon, 28 Jul 2008 19:53:56 +0000 http://www.universetoday.com/?p=16088#comment-27393 looks like a little shrimp to me, literally!. looks like a little shrimp to me, literally!.

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