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How to view Earth rotation in Earth view?

 

Dear friends,
Sorry for the weird-sounding title... I am using XEphem with students and I would like to have the possibility to view the rotation of the Earth in "Earth view" mode. The default settings show a fixed region of the Earth's surface and the sunlight zone rotating (in spherical view mode) or "translating" (in cylindrical projection mode) as time goes, as if the Sun was rotating around the Earth.
Because I am teaching the consequences of the Earth's motion in real life, I would like to have the choice to view things differently (with the Sun in a fixed direction and Earth rotating as time goes). Of course, this would only be in spherical view mode.
So far, the only trick I have found is to activate tracking of one of the outer planets, in the hope that their positions relative to the Earth will reveal the sunlight and shadow hemispheres more or less equally.
Yours,
Maxime
 

Turn on View -> Inertial frame.


On Sun, Feb 7, 2021 at 1:32 PM Maxime GOMMEAUX <maxime.gommeaux@...> wrote:
Dear friends,
Sorry for the weird-sounding title... I am using XEphem with students and I would like to have the possibility to view the rotation of the Earth in "Earth view" mode. The default settings show a fixed region of the Earth's surface and the sunlight zone rotating (in spherical view mode) or "translating" (in cylindrical projection mode) as time goes, as if the Sun was rotating around the Earth.
Because I am teaching the consequences of the Earth's motion in real life, I would like to have the choice to view things differently (with the Sun in a fixed direction and Earth rotating as time goes). Of course, this would only be in spherical view mode.
So far, the only trick I have found is to activate tracking of one of the outer planets, in the hope that their positions relative to the Earth will reveal the sunlight and shadow hemispheres more or less equally.
Yours,
Maxime

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