Size of Sun as seen from Mercury |
Size of Sun as seen from Mercury |
Jun 29 2011, 10:22 PM
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#16
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Every time a pointless debate of semantics begins, a baby seal pup gets clubbed to death
True story. |
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Jun 30 2011, 01:51 PM
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#17
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
Every time a pointless debate of semantics begins, a baby seal pup gets clubbed to death That reminds me Doug, your pelts from last month are ready. The guy says he's OK with coats and hats, but there is no way he can stitch them into undershorts. Sorry. -------------------- If Occam had heard my theory, things would be very different now.
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Jun 30 2011, 01:56 PM
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#18
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Member Group: Members Posts: 753 Joined: 23-October 04 From: Greensboro, NC USA Member No.: 103 |
I need to be better about using smiley faces.
-------------------- Jonathan Ward
Manning the LCC at http://www.apollolaunchcontrol.com |
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May 16 2018, 08:26 PM
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#19
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
Are there any good videos of the sun throughout a Mercurian day? I found this video, but it doesn't show how the sun's location varies, or what a specific observer on a specific spot would see. I assume there are solar system simulators that would allow one to stand on spots on Mercury and watch the sun progress?
https://www.youtube.com/watch?v=gubNWJ5RlP4 I assume at one of the sub-solar points you would see the Sun approach overhead, slow down, get larger, pause for a bit, then speed up and get smaller. But what would a person not at one of those points see? If you were 90* away, the sun would be largest at sunrise, shrink, then get larger again at sunset? Thanks everyone! -------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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May 16 2018, 09:01 PM
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#20
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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May 17 2018, 06:48 AM
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#21
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Newbie Group: Members Posts: 5 Joined: 20-November 17 From: Brazil Member No.: 8292 |
Stellarium as well is pretty good. F6 to change location, switch planet to Mercury, pick somewhere on the map and speed up time as you wish. You can zoom into the Sun and watch it change size as time progresses, change your location 90° to the east/west and do the same again. Spoiler alert: your assumption is correct
Curiously, just over a year ago I made a gif/short video using Stellarium (Gfycat link) of what a solar day on Mercury would look like, but the change in apparent size of the Sun isn't really noticeable - it was more aimed at visualising the Sun's movement through the sky. The labels are all in Portuguese, L is east and O is west. -------------------- |
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May 17 2018, 09:52 PM
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#22
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
Thanks for tips, those both look like great programs!
-------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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May 18 2018, 12:30 AM
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#23
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
https://eyes.nasa.gov could do it as well. If you use the shoulder camera on Mercury then lock the camera to the sun you could watch it all day.
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