@PhilStooke@mastodon.social

Professor Emeritus, University of Western Ontario. Space exploration and planetary cartography, historical and present. A longtime poster on unmannedspaceflight.com (RIP - but now archived at https:// umsfarchive.com/index.php/ ), now posting content on www.nasaspaceflight.com and https:// discord.com/channels/129052490 7624464394 as well as here. The Solar System ain't gonna map itself.

mastodon.social

Phil Stooke

Professor Emeritus, University of Western Ontario. Space exploration and planetary cartography, historical and present. A longtime poster on unmannedspaceflight.com (RIP - but now archived at https:// umsfarchive.com/index.php/ ), now posting content on www.nasaspaceflight.com and https:// discord.com/channels/129052490 7624464394 as well as here. The Solar System ain't gonna map itself.

mastodon.social

@PhilStooke@mastodon.social · Jan 31, 2026

Last September I started a thread on Viking 1 which began with the Viking site selection process. Here we will pick up the story for Viking 2. Viking sites were chosen initially using Mariner 9 images and elevation data, and the final stage of that process produced these two sites for Viking 2, a prime site (B1) and a backup (B2). B1 is Cydonia and its most famous inhabitant lives in those hills (Cydonia Colles). B2 is a low volcanic rise now called Alba Mons. #mars #maps #viking2

View on mastodon.social

19

0

11

0

Phil Stooke

@PhilStooke@mastodon.social

Professor Emeritus, University of Western Ontario. Space exploration and planetary cartography, historical and present. A longtime poster on unmannedspaceflight.com (RIP - but now archived at https:// umsfarchive.com/index.php/ ), now posting content on www.nasaspaceflight.com and https:// discord.com/channels/129052490 7624464394 as well as here. The Solar System ain't gonna map itself.

mastodon.social

Phil Stooke

@PhilStooke@mastodon.social

Professor Emeritus, University of Western Ontario. Space exploration and planetary cartography, historical and present. A longtime poster on unmannedspaceflight.com (RIP - but now archived at https:// umsfarchive.com/index.php/ ), now posting content on www.nasaspaceflight.com and https:// discord.com/channels/129052490 7624464394 as well as here. The Solar System ain't gonna map itself.

mastodon.social

@PhilStooke@mastodon.social · May 23, 2024

And here is the northern hemisphere. I drew this in the polar aspect and reprojected it to cylindrical before adding the bits which extended south of the equator. Next: another comet, but this time with an unusual twist.

View on mastodon.social

3

0

1

0

Phil Stooke

@PhilStooke@mastodon.social

Professor Emeritus, University of Western Ontario. Space exploration and planetary cartography, historical and present. A longtime poster on unmannedspaceflight.com (RIP - but now archived at https:// umsfarchive.com/index.php/ ), now posting content on www.nasaspaceflight.com and https:// discord.com/channels/129052490 7624464394 as well as here. The Solar System ain't gonna map itself.

mastodon.social

Phil Stooke

@PhilStooke@mastodon.social

Professor Emeritus, University of Western Ontario. Space exploration and planetary cartography, historical and present. A longtime poster on unmannedspaceflight.com (RIP - but now archived at https:// umsfarchive.com/index.php/ ), now posting content on www.nasaspaceflight.com and https:// discord.com/channels/129052490 7624464394 as well as here. The Solar System ain't gonna map itself.

mastodon.social

@PhilStooke@mastodon.social · May 23, 2024

I also made a shaded relief interpretation of Comet Wild 2's nucleus. The difference between this relief drawing (this time made in Photoshop, not by pencil) is the illumination. The photomosaic is mostly one single image with one lighting direction. The relief drawing has lighting uniformly from the east (so in a depression, the east side is in shadow, the west side is bright). Here is a cylindrical version.

View on mastodon.social

0

1

0

Phil Stooke

Posts

Media