# Tilting of Earth rotational axis

In which way do the Earth's rotational axis tilted 23.5°.

see in the image we have been told that the axis of rotation of Earth is tilted 23.5° from the perpendicular to path. But can anyone say in which direction the earth is tilted .AO or BO. Is the axis of rotation tilted towards sun or away from sun. And still it is confusing in solstices. Where the rotation axis of Earth at one solstice is towards the sun and at other solstice away from sun.

• Have you not seen something like en.wikipedia.org/wiki/Axial_tilt#/media/… ? – Eric Towers Nov 2 '20 at 20:31
• @EricTowers Thanks. There is also written that "tilt is constant relative to some fixed stars" but not specified. – Debakant Nov 3 '20 at 2:57

It's tilted with the N pole toward the sun at Summer Solstice, and S pole toward the sun at Winter Solstice (assuming you are in the northern hemisphere, and winter is in December).

The tilt is always 23.5 degrees, and it always points in the same direction (roughly to the Polaris star), but that means that it does not always point towards the sun or away from it. That depends on the time of year.

Let's say that in your drawing Polaris is "above" the earth orbit, and "left" from the center. Then the earth axis is tilt "to the left", matching your A direction.

At the "right" end of the orbit (as seen in your drawing), the axis points towards the sun, and that corresponds to June, meaning lots of sun (= summer) for the northern hemisphere.

Half a year later, in December, the earth is at the "left" end of its orbit (invisible part of your drawing), its axis still pointing to the left, which now means "away from the sun", resulting in less sunlight (= winter) for the northern hemisphere.