Shifting an equirectangular map north/south

[Hai-Etlik]

I don't know this for sure, so please don't kill me if it isn't possible, but I think you may be able to do that in NASAs GProjector.

If you haven't already got it, its here.

No, G.Projector can't do oblique projections. GDAL should be able to do it but it'll involve learning how to set up a custom oblique projection in Proj.4 syntax.

The energy requirements for altering a planet's rotation like that are up in "if you can do it, you don't need to" territory.

[rdanhenry]

The energy requirements for altering a planet's rotation like that are up in "if you can do it, you don't need to" territory.

Venus rotates extremely slowly. Stopping it and starting the new rotation on a new axis would be less work than the inescapable need to spin it up to something much closer to an Earthlike rotational rate or Earth-based climate models won't even apply in the first place, as day/night would easily dominate over seasons.

[acrosome]

Venus rotates extremely slowly. Stopping it and starting the new rotation on a new axis would be less work than the inescapable need to spin it up to something much closer to an Earthlike rotational rate or Earth-based climate models won't even apply in the first place, as day/night would easily dominate over seasons.

I'm all over it, Brother.

[Azélor]

Venus rotates extremely slowly. Stopping it and starting the new rotation on a new axis would be less work than the inescapable need to spin it up to something much closer to an Earthlike rotational rate or Earth-based climate models won't even apply in the first place, as day/night would easily dominate over seasons.

Yes but no since he said he speeded up the rotation of the planet to have a 24h day.