| Search results - "17p/holmes" |
Comet 17P/Holmes and Satelite25 views2007-10-28, 5:57 AM EDT
Prime focus, 10"f/5.6, iso 1600, 5 sec
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Comet Holmes Visual Appearance28 viewsEyepiece projection (5.4x prime)
Canon XTi, iso 1600, 15 sec exp
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Size Comparison - Day 1, 2, 428 viewsPrime focus, 10"f/5.6, iso 1600
I did no histogram stretching (contrast enhancing) on these three images so the surface brightness has not been changed from the camera's normal response.
The noted diameters are approximate.
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Comet 17P/Holmes In 3D33 viewsI "borrowed" an image image Joe Comeau took the evening of Oct 28 (see Joe's album on this site - Comet Holmes 10-28-07) and combined it with one I took the morning of the 29th to produce this 3d image. Joe's image details - 40 25 sec images average stacked in Maxim DL taken in the evening ~ 10:30 pm using a SAC10 camera on a LXD-55 10" F4 scope. My image - single 3 sec exp, iso 1600 on 10" f/5.6 newt. processed with Noise Ninja. Used StereoImage Make V3.03 to combine them into 3D.
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Comet 17P/Holmes Expands21 views1 day size comparison - from 10/25/07 to 10/26/07.
Both are cropped prime focus images.
Canon Rebel XTi at iso 1600.
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Holmes - Moon Comparison28 viewsHere's a montage of my images showing Comet 17P/Holmes' size relative to the Moon starting approximately one day after it's outburst (10/25/07, 5:30 AM EST) to 25 days after. Note the difference in exposure times as the comet expanded (0.5 seconds to 5 minutes). I tried to pick images with similar surface brightness as best I could. All images are at the same image scale- prime focus in a 10" f/5.6 Newtonian reflector.
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Holmes - Moon Comparison with text33 viewsHere's a montage of my images showing Comet 17P/Holmes' size relative to the Moon starting approximately one day after it's outburst (10/25/07, 5:30 AM EST) to 25 days after. Note the difference in exposure times as the comet expanded (0.5 seconds to 5 minutes). I tried to pick images with similar surface brightness as best I could. All images are at the same image scale- prime focus in a 10" f/5.6 Newtonian reflector.
Little or no contrast enhancement.
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