An Offset Sunrise (March '23 Challenge Question)

Thanks for bring Venus into the conversation. Good answer!

Way to think outside the Earth. And very punny! GA awarded

Yep yep yep. Good thinking.

The dark side of the moon! Apologies to Pink Floyd!

Good work. You found the easy ones.

The sun doesn't rise anywhere, it just travels through space. Sunrise is an illusion.

Depends:

Going back in time, Plato says the Egyptian priests of Sais had told Solon that during their past generations the sun four times changed its place of rising and setting.

So it depends on where/location the cardinal points are considered to be.

See for example https://melitamegalithic.wordpress.com/2019/12/08/geology-for-the-heretic-the-mystery-of-the-megalithic-calendar-orientations/ This is the result of tectonic micro-plate rotations.

See "1)..." in my post #7.

EAST

noun

1. The direction toward the point of the horizon where the sun rises at the equinoxes, on the right-hand side of a person facing north, or the point on the horizon itself.

Obviously, this definition considers that you are on Earth. For exoplanets the word "sun" should be replaced with "local star". And, of course, the definition is valid for planets having an axial tilt <90°.

I'm afraid the definition of "North" is linked to the definition of East :-)

North:

the direction in which a compass needle normally points, towards the horizon on the left-hand side of a person facing east, or the part of the horizon lying in this direction.

Um, er, a <...compass needle...> points usually in two directions simultaneously.

What happens when the magnetic field of a celestial body flips to the other direction, as Earth is reportedly about to do?

I suppose we will keep the cardinal points unchanged. After all, we faced a similar situation when we learned that an electric current is related to electrons, so it flows actually from - to +, but we kept the "conventional" flow from + to -.

But this will take a very long time to happen and probably a long time after nobody will use a compass to know where North is.

Good stuff. GA awarded for being the first to think outside the solar system.

Considering how ISS moves, the sun will also rise from the east - the only difference is that an "ISS day" lasts some 92 minutes. But near the solstice days there are periods of time when the sun doesn't set (although ISS travels over night areas, due to its height of some 400 km and its orbit position relative to the day/night regions on Earth, it doesn't enter in the Earth's shadow).

Interesting yes:-

https://eol.jsc.nasa.gov/Tools/orbitTutorial.htm#:~:text=The%20station%20travels%20from%20west,exact%20altitude%20of%20the%20ISS.

On reflection it would take more energy to get it, and all its visitors into an orbit going the opposite way to the rotation of the earth.

Noice!

It depends on how you parse the sentence "List the places where the sun does not rise in the east".

If it means "never rises in the east", then the north and south poles would qualify as every direction from these locations are "south" and "north" respectively and "east" is not defined.

Everywhere else, construct a meridian through the point. At the equinoxes, due east will be in a direction perpendicular to this meridian and will be the direction of the rising sun.

If it means "Does not always rise in the east", then the whole earth qualifies. The sun appears to rise to the north or south of east throughout the year in a direction of 90 degrees to the latitude. For example, on the equator (latitude 0^o) it would rise in a direction 90 degrees to the horizon. At 30^o latitude, it would be 60^o to the horizon, etc.

On the equinoxes, it would appear to rise due east everywhere (except at the exact poles).

Disclaimer: Sunrise defined by center of disk rather than top edge.

"Disclaimer: Sunrise defined by center of disk rather than top edge."

Actually, due to the atmospheric refraction, the sun disk will be fully seen over the horizon on both poles for several days around the equinoxes (so, the day is in fact a little longer than 6 months at both poles).

...which category also includes other high speed aircraft flying west.

GA

Venus.

The sun rises in the west there.

Also, the cloud is so thick that sunrise is not really visible at the surface.

Does <...east...> need to be properly defined to get comprehensive answers?

East by definition is where the sun rises at the equinoxes.

In that case, Venus can be deleted from the list, as it is contra-rotating. According to that definition its <...East...> is not in the same direction a other bodies' <...East...>s.

From Scientific American

Our neighboring planet Venus is an oddball in many ways. For starters, it spins in the opposite direction from most other planets, including Earth, so that on Venus the sun rises in the west. Not that it happens often: a day there lasts a little more than 243 Earth-days, actually making it longer than a Venusian year, which is only about 224 Earth-days long.

I think that that definition was coined with respect to the Earth.

Inside anywhere with no windows.