Late 'night' Phoenix Observations. |
Late 'night' Phoenix Observations. |
Jul 12 2008, 08:55 PM
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#1
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Junior Member Group: Members Posts: 47 Joined: 27-June 08 From: Ashford, Kent, United Kingdom. Member No.: 4244 |
Hi everyone.
Phoenix on Sol 46 have returned images of the Sun above the Northern Horizon, just before midnight. Sun 11:14 PM local time. Sun 11:16 PM local time. Sun 11:26 PM local time. Andrew Brown. -------------------- "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.
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Aug 7 2008, 03:46 AM
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#2
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Man...talk about mad skills!!! Astro0, you just don't cease to amaze. I want that emoticon!!!
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Aug 17 2008, 10:14 AM
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#3
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Junior Member Group: Members Posts: 47 Joined: 27-June 08 From: Ashford, Kent, United Kingdom. Member No.: 4244 |
Hi everyone,
Nice observation. Sol 80 @ 00:08 HRS LMST looking North. I have cropped & enlarged the central due north position of said image. 1,303 Km / 809 miles to the North Pole on mars. Andrew Brown. -------------------- "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.
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Aug 18 2008, 12:58 PM
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#4
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Member Group: Members Posts: 593 Joined: 20-April 05 Member No.: 279 |
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Aug 18 2008, 02:46 PM
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Senior Member Group: Members Posts: 1465 Joined: 9-February 04 From: Columbus OH USA Member No.: 13 |
Once the sun properly sets at this latitude, there's chances to see Phobos rising to a (bizarre) couple of degrees above the horizon - I wonder if we'll see any imagery of it? Did you have specific dates that would be good? I just ran a quick check & it looks like Phobos max elevation for any given pass ranges from 0-1.5 degrees, so there has to be the coincidence of a "high" elevation when the sun is set. For example, on Sept. 15 Phobos rises just 0.1 deg when the sun is 0.9 deg below the horizon. On Nov. 19 Phobos rises 1.4 deg with the sun 7.1 deg below the horizon. At least that's what my software says. -------------------- |
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Sep 2 2008, 08:55 PM
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#6
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Member Group: Members Posts: 150 Joined: 3-June 08 From: McLean, VA Member No.: 4177 |
At last! Late night shot through the legs of Phoenix by the RAC. This one was taken at 2:09 am when the sun was about 3 degrees above the horizon (according to Starry Night...), so it is near to what we might have seen had they taken the shot in the week after landing. Eerie having little shadow - so the sky is brightly lit by the low sun, but the sun's direct light is attenuated so much that what shadow it casts is washed out? The later shots, taken two hours later, show more distinct shadows with the sun about 11 degrees up.
Neat pictures. Look forward to the color views our bright members will make... |
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Sep 2 2008, 09:08 PM
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#7
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Member Group: Members Posts: 150 Joined: 3-June 08 From: McLean, VA Member No.: 4177 |
Didn't see it earlier, but the RAC took this one through the legs at 10:30pm on SOL 96 with the sun about 1 1/2 degrees up. Very eerie...
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