Cape St Mary, aka the beacon |
Cape St Mary, aka the beacon |
Oct 5 2006, 05:50 PM
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#1
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
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Nov 9 2006, 03:08 AM
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#2
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
Beautiful! Our first really good look at the beacon outcrop. Thanks for the pan, Shaka.
MarkL - I and someone else (James?) measured the height above the crater floor at Duck Bay and got about 70 metres (jpl has given a similar figure). CSM/beacon is probably a couple metres higher than Duck Bay rim. But you're right - it's going to be a heck of a view! |
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Nov 9 2006, 06:14 PM
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#3
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Member Group: Members Posts: 240 Joined: 18-July 06 Member No.: 981 |
Beautiful! Our first really good look at the beacon outcrop. Thanks for the pan, Shaka. MarkL - I and someone else (James?) measured the height above the crater floor at Duck Bay and got about 70 metres (jpl has given a similar figure). CSM/beacon is probably a couple metres higher than Duck Bay rim. But you're right - it's going to be a heck of a view! If it's really 70, that'd be impressive. I was measuring the height of the right triangle formed by joining the tip of the cape to its corresponding shadow on the crater floor to a point directly below the tip (ie. the height of the scarp). Since the floor is not flat but descends toward the centre of the crater, this would be a high estimate for the height of the cliff below CSM. I think it came to 37m. Maybe your calculation (sorry missed where you posted it) was Duck Bay height above the very bottom of the crater which I'd agree would be over 70 m. CSM was the highest point I could measure and casts the longest shadow. Edit: FWIW, here's what I worked out ... (again these are cliff heights, not absolute heights above crater bottom) |
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