Venus Science |
Venus Science |
Feb 10 2006, 10:18 PM
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Sunspot, NM (Feb. 7, 2006) -- The planet Venus is best known for the thick layers of clouds that veil its surface from view by telescopes on Earth. But the veil has holes, and a New Mexico State University scientist plans on using a solar telescope to peer through them to study the weather on Venus.
"Observations of Venus from a nighttime telescope at a single location are very difficult because Venus is so close to the Sun in the sky," said Dr. Nancy Chanover, a planetary scientist at NMSU in Las Cruces, NM. "You can observe it for about two hours at most." Then the Sun rises and blinds the telescope (or Venus sets, depending on the time of year). http://www.nso.edu/press/venus06/ -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Jun 14 2006, 06:07 PM
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Solar System Cartographer Group: Members Posts: 10173 Joined: 5-April 05 From: Canada Member No.: 227 |
Nice, Don. My map is a composite of two datasets - the Magellan altimetry, patched with Pioneer Venus, which is used in USGS's Pigwad system, and the Magellan global mosaic (composite of all three cycles, I think) which is patched in the north with Venera. That was originally off the Photojournal but I have reprojected it. So at the pole there is a bit of Venera imagery, very subdued. I just add the SAR images to give a bit of extra information over the rather bland altimetry image.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Guest_DonPMitchell_* |
Jun 14 2006, 08:10 PM
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Guests |
Nice, Don. My map is a composite of two datasets - the Magellan altimetry, patched with Pioneer Venus, which is used in USGS's Pigwad system, and the Magellan global mosaic (composite of all three cycles, I think) which is patched in the north with Venera. That was originally off the Photojournal but I have reprojected it. So at the pole there is a bit of Venera imagery, very subdued. I just add the SAR images to give a bit of extra information over the rather bland altimetry image. Phil I reprocessed the Magellan altimetry data with the corrected spacecraft ephemeris produced in the 1990s. If you've noticed radial grooves in the data, this will fix that for you. If you're using the raw altimeter samples, that is. |
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