I think today's APOD will go down as one of my all time favorites! I am blown away by the detail and dimension. It makes me really excited to see what the James Webb sends back in a few years. Maybe I won't miss visual-light images as much as I thought I might. ~Kelly
Wow that is remarkable. I can't recall ever seeing the Horsehead in such detail. And good choice of colors on the part of the people who processed the image. Gives it quite a ghostly appearance. I know Joe will disagree with me, but color only exists in the minds of some living creatures. It is our way of distinguishing different wavelengths of light energy. The colors you perceive mostly depends on the environment your ancestors evolved in. For the purposes of argument, I'm setting-aside singular mutations and those cases where, due to a difference in brain wiring (for whatever reason, injury or otherwise), some individuals percieve colors associated with sounds, for example, or shapes. Thanks for calling it to our attention, Kelly! On Mon, Apr 22, 2013 at 5:46 AM, Kelly Ricks <kellyalenericks@gmail.com>wrote:
I think today's APOD will go down as one of my all time favorites! I am blown away by the detail and dimension. It makes me really excited to see what the James Webb sends back in a few years. Maybe I won't miss visual-light images as much as I thought I might.
I'm amazed at how many galaxies are in this image! I wondered what the "smudge" was above the bright star in the horse's brow, thinking maybe it was some kind of reflection or glare. But I zoomed in and I see it's a galaxy. Then I notice that so many of the dots in this photo are galaxies, particularly in the top right portion of the image. Incredible. http://apod.nasa.gov/apod/image/1304/horseheadir_hubble_1225.jpg Thanks Kelly! Dion ________________________________ From: Chuck Hards <chuck.hards@gmail.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Monday, April 22, 2013 6:28 AM Subject: Re: [Utah-astronomy] Today's APOD: Infrared Horsehead Wow that is remarkable. I can't recall ever seeing the Horsehead in such detail. And good choice of colors on the part of the people who processed the image. Gives it quite a ghostly appearance. I know Joe will disagree with me, but color only exists in the minds of some living creatures. It is our way of distinguishing different wavelengths of light energy. The colors you perceive mostly depends on the environment your ancestors evolved in. For the purposes of argument, I'm setting-aside singular mutations and those cases where, due to a difference in brain wiring (for whatever reason, injury or otherwise), some individuals percieve colors associated with sounds, for example, or shapes. Thanks for calling it to our attention, Kelly! On Mon, Apr 22, 2013 at 5:46 AM, Kelly Ricks <kellyalenericks@gmail.com>wrote:
I think today's APOD will go down as one of my all time favorites! I am blown away by the detail and dimension. It makes me really excited to see what the James Webb sends back in a few years. Maybe I won't miss visual-light images as much as I thought I might.
_______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
I think especially cool are the galaxies that you can see through the nebula. Mat -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Dion Davidson Sent: Monday, April 22, 2013 12:47 PM To: Utah Astronomy Subject: Re: [Utah-astronomy] Today's APOD: Infrared Horsehead I'm amazed at how many galaxies are in this image! I wondered what the "smudge" was above the bright star in the horse's brow, thinking maybe it was some kind of reflection or glare. But I zoomed in and I see it's a galaxy. Then I notice that so many of the dots in this photo are galaxies, particularly in the top right portion of the image. Incredible. http://apod.nasa.gov/apod/image/1304/horseheadir_hubble_1225.jpg Thanks Kelly! Dion ________________________________ From: Chuck Hards <chuck.hards@gmail.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Monday, April 22, 2013 6:28 AM Subject: Re: [Utah-astronomy] Today's APOD: Infrared Horsehead Wow that is remarkable. I can't recall ever seeing the Horsehead in such detail. And good choice of colors on the part of the people who processed the image. Gives it quite a ghostly appearance. I know Joe will disagree with me, but color only exists in the minds of some living creatures. It is our way of distinguishing different wavelengths of light energy. The colors you perceive mostly depends on the environment your ancestors evolved in. For the purposes of argument, I'm setting-aside singular mutations and those cases where, due to a difference in brain wiring (for whatever reason, injury or otherwise), some individuals percieve colors associated with sounds, for example, or shapes. Thanks for calling it to our attention, Kelly! On Mon, Apr 22, 2013 at 5:46 AM, Kelly Ricks <kellyalenericks@gmail.com>wrote:
I think today's APOD will go down as one of my all time favorites! I am blown away by the detail and dimension. It makes me really excited to see what the James Webb sends back in a few years. Maybe I won't miss visual-light images as much as I thought I might.
_______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options". _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options". This message and any attachments are solely for the use of intended recipients. The information contained herein may include trade secrets, protected health or personal information, privileged or otherwise confidential information. Unauthorized review, forwarding, printing, copying, distributing, or using such information is strictly prohibited and may be unlawful. If you are not an intended recipient, you are hereby notified that you received this email in error, and that any review, dissemination, distribution or copying of this email and any attachment is strictly prohibited. If you have received this email in error, please contact the sender and delete the message and any attachment from your system. Thank you for your cooperation
Absolutely agree! It's not just this image, you can find dozens of galaxies lurking in the backgrounds of any number of Hubble images. It's one of the first things I look for when a new HST image is released. Case in point, "The Mice": http://upload.wikimedia.org/wikipedia/commons/d/db/NGC4676.jpg I struggle to get my head around the 1,500 LY distance to the Horsehead, then try to imagine that distance relative to the overall size of our galaxy, and then try to visualize that against the distances between us and those galaxies appearing in the background. To borrow a phrase from Mr. Gumby, "My brain hurts!" Even more brain-scrambling is what happens if you apply variations of the Drake Equation to HST images in which numerous galaxies are visible. And those Hubble Deep Field images? Don't get me started. Seth -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Dion Davidson Sent: Monday, April 22, 2013 10:47 AM To: Utah Astronomy Subject: Re: [Utah-astronomy] Today's APOD: Infrared Horsehead I'm amazed at how many galaxies are in this image! I wondered what the "smudge" was above the bright star in the horse's brow, thinking maybe it was some kind of reflection or glare. But I zoomed in and I see it's a galaxy. Then I notice that so many of the dots in this photo are galaxies, particularly in the top right portion of the image. Incredible. http://apod.nasa.gov/apod/image/1304/horseheadir_hubble_1225.jpg Thanks Kelly! Dion ________________________________ From: Chuck Hards <chuck.hards@gmail.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Monday, April 22, 2013 6:28 AM Subject: Re: [Utah-astronomy] Today's APOD: Infrared Horsehead Wow that is remarkable. I can't recall ever seeing the Horsehead in such detail. And good choice of colors on the part of the people who processed the image. Gives it quite a ghostly appearance. I know Joe will disagree with me, but color only exists in the minds of some living creatures. It is our way of distinguishing different wavelengths of light energy. The colors you perceive mostly depends on the environment your ancestors evolved in. For the purposes of argument, I'm setting-aside singular mutations and those cases where, due to a difference in brain wiring (for whatever reason, injury or otherwise), some individuals percieve colors associated with sounds, for example, or shapes. Thanks for calling it to our attention, Kelly! On Mon, Apr 22, 2013 at 5:46 AM, Kelly Ricks <kellyalenericks@gmail.com>wrote:
I think today's APOD will go down as one of my all time favorites! I am blown away by the detail and dimension. It makes me really excited to see what the James Webb sends back in a few years. Maybe I won't miss visual-light images as much as I thought I might.
_______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options". _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
On Mon, Apr 22, 2013 at 12:25 PM, Seth Jarvis wrote:
I struggle to get my head around the 1,500 LY distance to the Horsehead, then try to imagine that distance relative to the overall size of our galaxy, and then try to visualize that against the distances between us and those galaxies appearing in the background. To borrow a phrase from Mr. Gumby, "My brain hurts!"
Indeed. Doing just some rough calculations of scale, if the haze of the Horsehead nebula were on your front window that you were looking through across the room at just 10 feet away (e.g., 1500 LY = 10 feet), a far-distant star in the photo (say 50,000 light years) would be up the street half a block away. The very nearby Andromeda Galaxy (2.5 million light years) would by across town 3 miles. Some of the background galaxies in the photo, if even a very conservative few billion light years distant, would be across the continent about 2500 miles distant. The most distant galaxies discovered would be 17,000 miles away from the Horsehead nebula on your window across the room. Jared
There's also this link to USA Today http://www.usatoday.com/story/tech/sciencefair/2013/04/23/hubble-ison-comet/... ________________________________ From: Seth Jarvis <SJarvis@slco.org> To: 'Utah Astronomy' <utah-astronomy@mailman.xmission.com> Sent: Wednesday, April 24, 2013 8:56 AM Subject: [Utah-astronomy] Hubble looks at ISON http://www.newsdaily.com/article/94d8a3411a4506d0aced83bbf70e9a9b/hubble-tel... and http://www.space.com/20787-comet-ison-hubble-photos.html Pretty cool. Seth _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
That horsehead image is the best astrophoto I have ever seen. Maybe I should just sell all my gear and give up on the hobby... Tyler -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Kelly Ricks Sent: Monday, April 22, 2013 5:46 AM To: utah-astronomy@mailman.xmission.com Subject: [Utah-astronomy] Today's APOD: Infrared Horsehead I think today's APOD will go down as one of my all time favorites! I am blown away by the detail and dimension. It makes me really excited to see what the James Webb sends back in a few years. Maybe I won't miss visual-light images as much as I thought I might. ~Kelly _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
participants (8)
-
Chuck Hards -
Dion Davidson -
Hutchings, Mat -
Jared Smith -
Kelly Ricks -
M Wilson -
Seth Jarvis -
Tyler Allred