At the time of the equinoxes, the sun's rays would be nominally tangent to the Earth at the
north and south poles. Those are 90 degrees north and south of the equator respectively.
Also I think at either 23.5 degrees north or 23.5 degrees south at sunrise and sunset.
Who told you that ? There is no "why", because you certainly can. From the northern hemisphere, you can see stars with declinations down to (your latitude) minus (90°).
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 northern hemisphere would be 66.5 degrees N (Arctic Circle)
summer solstice
latitude of the observer
There is no time between these. On the day before the autumnal equinox, the sun is directly overhead in the northern hemisphere (at a latitude just north of the equator). The following day, it is directly overhead in the southern hemisphere (just south of the equator). The sun goes from being overhead in the northern hemisphere to the southern hemisphere instantaneously, the change happening at the autumnal equinox.
The hemisphere according to latitude in which India lies is Northern Hemisphere.
there are 90 degrees of latitudes in northern hemisphere
Greece is in the northern hemisphere. The northern hemisphere is north of the equator. The southern hemisphere is south of the equator. You can find this out on a map and/or with latitude or longitude.
the equator.
It should be remembered that the seasons are diametrically opposed in the hemispheres. When it is summer in the northern hemisphere it is winter in the southern one. Seasons officially start and end on the solstices and equinoxes. The solstices are the days on which daylight or night time are the longest. When the day is longest in the northern hemisphere night is longest in the southern. The equinoxes are when day time and night time are equal which varies depending on your latitude. (Except at the equator)
The US is in the Northern Hemisphere by latitude and the Western Hemisphere by longitude.
The US is in the Northern Hemisphere by latitude and the Western Hemisphere by longitude.
Yes. It lies at 33° 32' northern latitude.
northern hemisphere
northern hemisphere
India lies in the eastern hemisphere. It is also in the northern hemisphere.
Yes, Portugal is in the Northern Hemisphere. Portugal's latitude is 38 degrees 42 minutes North latitude. That means that it's 38 degrees North of the Equator. Being north of the Equator places Portugal in the Northern Hemisphere.