astroOACDF215d01c : 無料・フリー素材/写真
astroOACDF215d01c / rmforall@gmail.com
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | #9 CSL-1 is to the left of the lower center, with two similar complex, orange objects, in the upper left corner, and the top right edge. Compare #2 CSL-1 and 3 other cosmic string gravitational lens candidates -- found to be ordinary galaxies by Hubble Space Telescope on 2006.01.12 -- the close groupings of orange galaxies at low center [CSL-1[, upper left [3], upper right corner [5], while [4] is roughly within the bright triangle 2 cm to the upper right from CSL-1, according to slide 22 of 34 in a 2005.06.24 review by Henry S-H Tye:www.theory.caltech.edu/~mihai/StringsSchool/Henry_Tye.pdf I started the same as with #2. From the ESO.org site, I downloaded ESO PR Photo 15d/01,Hi-Res JPEG 2768 X 3668 pixels 6.2 MB 5.5 X 6.5 arc-minutes.I used an excellent low cost image processing program,MGI PhotoSuite 4.0 to crop off the text on the bottom, leaving the image 2768 X 3136 p 5.5 X 6 min.The Touchup feature next: Soften: reduced from 3 to 0, as I wanted to maximize the raw detail.Color Adjustment: Cyan-Red now raised to + 50 Magenta-Green +100 Yellow-Blue -100, as empirically this much increased the Red band, balancing the Green band, creating an image with complex details -- much more challenging to view and appreciate.Brightness was raised twice as much to +60, and the image was saved: 2768 X 3136 bmp 24.8 MB png with 1 out of 9 levels of compression 11.6 MB -- twice the 5 MB upload limit for Flickr.I used Crop to get this interesting selection:2010 X 1502 p tif 11.8 MB png 4.82 MB If we imagine a clock face at CSL-1 to show directions, then at 7:30 at 7 widths of CSL-1 distance, 28 sec, we find a tangled cluster, 8 sec wide, of small, irregular dark red spots and lines, which seem to be a dense mesh that includes less dark red lines and lighter green lines.Click on All Sizes to see the Large and the even larger Original -- the file I uploaded.At first, the dark red spots and tangled darker red lines always seem to be behind all lighter features. But it's difficult to assess such complex, unfamiliar, fractile three dimensional meshes.If we look at 4:00 to 5:00 clock direction, 2 to 4 widths of CSL-1, 4-8 sec, we see a few longer, thinner, curved, much lighter lines -- and we may see everywhere complex meshes of tangled lighter lines, interwoven with the darker lines.If we gaze at 3:00 nine widths, 36 sec, we find a bright star, and two widths to its right, a tiny light fuzzy spot that expands upward to define a curved fan shape, barely visible, yet persistent, about 4 widths high and wide, 8 sec. We can discern this fan shape in the Large and Original views. Keep gazing -- you may start to see more subtle shapes, adjacent and overlapping the fan.Some of the lighter lines often seem to be boundaries of these subtle, fairly transparent features, like oil floating on water.If you look from CSL-1 to the 10:30 direction, about 40% of the way to the large galaxy on the left upper edge, you may discern a brighter green line, and a tangle of darker red lines, along with a white nebular streak. Switch back and forth from Large to Original to assess these items.Practice developes subtle visual skills, like learning to instantly recognize the subtle impressions of animal feet in a field of wild grass.Compare #21 Closeup in HUDF of "RTM-1", one of many blue galaxy pairs, very similar to CSL-1, just above yellow galaxy in lower left corner of #20 and #22, magenta in #23. |
| 撮影日 | 2005-05-30 02:33:15 |
| 撮影者 | rmforall@gmail.com , Santa Fe, New Mexico 87505, USA |
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