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How about some maps.

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Re: How about some maps.
Post by wingfield   » Fri Jul 10, 2015 8:54 am

wingfield
Lieutenant Commander

Posts: 110
Joined: Sun Apr 26, 2015 12:15 am
Location: Melbourne, Australia

FreeTrav wrote:
wingfield wrote:Perhaps we could also get an exact value for the axial tilt, so that we could then get tropic lines as well. We do have the Equator, which is a nice start.


I believe that there was some stuff at the beginning of MT&T which said that the tilt of Safehold was eleven degrees more than Earth - so 34.4 degrees. The problem with drawing the tropics is that the extant map doesn't go all the way to the poles, nor does it cover a full 360 degrees at the equator - and we don't know how much is omitted in either case - so you wouldn't be able to draw accurate tropic or polar lines anyway.


I'll check that. Thanks. Eleven degrees is a major variation, rather than the "slightly" that is mentioned elsewhere.

With a 34.4 degree tilt, you have a tropic zone of 68.8 degrees, arctic regions of 34.4 degrees at each pole and temperate zones each only 21.2 degrees wide. That makes for really savage seasonal fluctuations!
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Re: How about some maps.
Post by Dahak   » Sun Jul 12, 2015 6:44 pm

Dahak
Lieutenant (Senior Grade)

Posts: 85
Joined: Sat Sep 26, 2009 10:36 am

SWM wrote:I assume you are talking about using those to determine the spherical shape, and thus the distances between points on a sphere.

Unfortunately (or fortunately) that isn't necessary. The distances David cites in the text are not measured on a sphere, but on a flat map which is similar to this one. Measuring distances on this map will better match the distances in the text than trying to figure out longitude and latitudes.


I seem to recall a comment by David that he's been doing his distances on a flat-map model.

Having said that, there is a tool in the software to determine distances by clicking waypoints on your course and getting the path length.

Whether that tool determines the length based on proper spherical projection is unknown.

I suppose I could ask in the manufacturer's forums.
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