The tangent ray refers to either the northernmost or southernmost hemisphere where the vertical rays refers to direct sun. During the June 21 solstice, the latitude rays in the southern hemisphere would be 66.5 deg S (Antarctic Circle)
the equator
That happens on June 21.It's the Summer Solstice for the northern Hemisphere, but it's the beginning of Winter in the southern Hemisphere.
The hemisphere where it is summer. Northern in July, Southern in Dec.
The Earth is close to a sphere so there is but one single point on the sphere that has the Sun directly overhead at any one time. When this point is in the Northern hemisphere (roughly from the 21 of March to the 20 of September) the Southern hemisphere is less directly hit by the rays of the Sun and experiences somewhat cooler seasons than when the rays of the Sun strike more vertically.
By exposed it to vertical rays of the sun from the spring equinox to the automn equinox.
Some part of the northern hemisphere is exposed to vertical rays of the Sun from the spring equinox to the autumn equinox (slightly more than half a year because the Earth is further away from the sun during the northern hemisphere summer, it moves slower along it orbit).
The tangent ray refers to either the northernmost or southernmost hemisphere where the vertical rays refers to direct sun. During the June 21 solstice, the latitude rays in the southern hemisphere would be 66.5 deg S (Antarctic Circle)
The tangent ray refers to either the northernmost or southernmost hemisphere where the vertical rays refers to direct sun. During the June 21 solstice, the latitude rays in the southern hemisphere would be 66.5 deg S (Antarctic Circle)
the equator
That happens on June 21.It's the Summer Solstice for the northern Hemisphere, but it's the beginning of Winter in the southern Hemisphere.
The hemisphere where it is summer. Northern in July, Southern in Dec.
well if you say it that way, it depend which hemisphere you live in. We live in the northern hemisphere, so the sun rays strike to the southern hemisphere.
The Earth's axis is tilted, and in December the southern hemisphere is tilted towards the Sun. This means that the Sun's rays hit the southern hemisphere at a smaller angle from the vertical and are thus less spread out.
When it's spring/fall in the northern/southern hemisphere, the equator is directly exposed to the Suns energy. This happens twice per year. When it's summer in the northern hemisphere or summer in the southern hemisphere, these are the coolest days of the year for equatorial locations. It is still very warm in these places because the angle of the suns apparent location is still pretty high in the sky for them.
the parallel of latitude 23½ degrees south latitude marking the southern limit of Sun's vertical rays
Whichever hemisphere (the Northern or Southern Hemisphere) is tilted toward the sun receives more direct rays of sunlight (or rays that are closer to perpendicular or a 90° angle). The hemisphere tilted toward the sun also has more hours of daylight than the hemisphere that is tilted away from the sun