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Terry Wood

Jupiter (clearer) Nov 5th 2023 w/Mewlon 180c

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The Incredible Shrinking Polar Cap!

Started by djscobel, 09/17/2003 02:05PM
Posted 09/17/2003 02:05PM Opening Post
Observed Mars this morning. The seeing was really quite bad, but it would settle down just long enough for me to pull out some of the deatil. The SPC is nearly gone, just a sliver on the south limb. Not quite depicted correctly in the drawing, but you get the idea.

It may be past opposition, but it's still big - over 23 arc seconds - bigger than it will be in many years. It's not done yet!

Doug


Attached Image:

djscobel's attachment for post 9321
Posted 09/17/2003 03:12PM #1
Going, going, almost gone!

Dave Mitsky

Chance favors the prepared mind.

De gustibus non est disputandum.
Posted 09/17/2003 08:33PM #2
Doug,

An excellent observation of Mars showing much detail. You have captured the albedo features between Mare Sirenum on the left (preceding limb) and Mare Tyrrhenum on the right (following limb). The South Polar Cap (SPC) appears very small as you point out. The Hyblaeus Extension is also noted towards the northern limb. Please keep up the good work.

Carlos
Posted 09/18/2003 12:46AM #3
Nice drawing Doug, I was out a little earlier in the evening and I thought the seeing was very good at that time. But I was unable to push the power too much higher than 250x. I noticed the Hyblaeus Extension. Here is my drawing .... enjoy!

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Jafo55's attachment for post 71372