Mariner 6 and 7 Mosaics |
Mariner 6 and 7 Mosaics |
Feb 10 2023, 12:00 AM
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#31
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Solar System Cartographer Group: Members Posts: 10256 Joined: 5-April 05 From: Canada Member No.: 227 |
Very nice!
On my originals and on this projection of them you may notice faint streaks near the north pole which look like the fabled canals of Mars. They are canals... as portrayed on the old ACIC Mars Chart MEC-1 published in 1965. Some sources show an incorrect date of 1962, which is the date the material for the background drawing was collected. For my first Mars book I prepared a chronological series of Mars global maps. The ACIC map was scanned and the names and grid removed digitally. The polar sections were shown as several orthographic drawings but by an immense amount of wizardry their polar sections were combined and reprojected to create the big cylindrical map which then became my two hemispheres. Then it was time to add the Mariner images. Mariners 6 and 7 arrived when the south pole was illuminated and turned towards the spacecraft, so the north pole was not seen. I projected the far encounter images to make a global map up to about 60 north. The north polar area came from the previous map in the sequence. Only with Mariner 9 did that get replaced. 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 PDF: 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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Feb 10 2023, 11:01 PM
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#32
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Member Group: Members Posts: 246 Joined: 13-October 09 From: Olympus Mons Member No.: 4972 |
For the far encounter, I noticed you used only Mariner 7 in that but I noticed some areas particularly Malea Planum where 6 had better imagery so I used that there.
-------------------- "Thats no moon... IT'S A TRAP!"
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