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Definitions, What the correct place name etc
Reckless
post Sep 4 2005, 09:46 AM
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When I did my short OU course 'exploring Mars' planitia was the definition of a low-lying plain and planum was a high plain.
Does anyone know where the line is drawn, for example is a planum above the Mars datum and of course is Meridiani planum a planitiae?

Roy F
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CosmicRocker
post Sep 6 2005, 04:37 AM
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That's interesting, and quite logical that the Mean Martian Radius would define the datum. It would be interesting to find a map showing the areas that were below the datum. I'm sure they exist, but I am too tired to look for them tonight.


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Posts in this topic
- Reckless   Definitions   Sep 4 2005, 09:46 AM
- - CosmicRocker   According to the USGS Astrogeology Gazetteer of Pl...   Sep 5 2005, 01:20 AM
|- - Reckless   QUOTE (CosmicRocker @ Sep 5 2005, 02:20 AM)Ac...   Sep 5 2005, 03:19 PM
- - Phil Stooke   Cosmicrocker is correct. The definitions are not ...   Sep 5 2005, 02:11 AM
|- - RNeuhaus   QUOTE (Phil Stooke @ Sep 4 2005, 09:11 PM)Cos...   Sep 5 2005, 03:25 PM
|- - Reckless   QUOTE (RNeuhaus @ Sep 5 2005, 04:25 PM)Phil, ...   Sep 5 2005, 07:59 PM
- - ilbasso   Wasn't it originally called Sinus Meridiani - ...   Sep 5 2005, 02:50 AM
- - Phil Stooke   Sinus Meridiani is the name of the large two-lobed...   Sep 5 2005, 03:52 AM
- - Phil Stooke   On Earth the Datum is sea level. On Mars it is th...   Sep 6 2005, 02:55 AM
- - RNeuhaus   Many thanks to Reckless and Phil. The correcte...   Sep 6 2005, 03:58 AM
- - CosmicRocker   That's interesting, and quite logical that the...   Sep 6 2005, 04:37 AM

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