Your birth chart is not totally accurate if you were born in the Southern Hemisphere. And no, it's not because of a 13th sign or a tangential component. The sun rises toward the east in the Southern Hemisphere, yet we see it crossing the northern sky from right to left. This is because the earth itself is tilted on its axis so that we have seasons here on Earth. But for a horoscope to be truly relevant, it needs to take this fact into account. In the Southern Hemisphere, there are two sets of signs in play when calculating a person's natal chart: one for those born during winter and one for those born during summer. These charts will be slightly different than our own.
The first thing you need to know is that your sun will rise on someone born in the Southern Hemisphere in about half of the countries in that region. The other half will see it rise later in the day. So, which countries sees it rise late? Well, they're mostly in North America and Europe!
Now, let's look at each sign of the zodiac separately. We'll start with Capricorn, which rules over those born in the Northern Hemisphere between January 20th and February 16th. In the Southern Hemisphere, it's the opposite - Aquarius rules those born between April 23rd and May 21st. Now, just like people born in the Southern Hemisphere, those born in the Northern Hemisphere will experience both spring and autumn.
No, the sun always rises in the east. It rises in the north-east of the southern hemisphere in the winter and in the south-east in the summer. It rises in the north-east in the summer and in the south-east in the winter in the northern hemisphere. The sun sets in the west and sets below the horizon to the south.
Earth's rotational axis is tilted with respect to its orbital plane by about 23.5 degrees. This means that at any given time, some parts of Earth are receiving direct sunlight while others are getting no light at all. Seasonal changes occur as a result of our planet's axial tilt changing over time. During a full rotation around its axis, Earth completes one orbit around the Sun. Because of this circular motion, part of Earth is always in darkness. The part that is exposed to sunlight during a particular day is called the daylight period or daytime. At the end of the daytime period, the sun goes down and night falls. The part of Earth that is in darkness at any given time is called the nighttime period or twilight.
The angle between the equator and the axis of rotation is called the "equatorial inclination". Because the Earth is spheroid (balloon-shaped), not flat, the distance from the center to the surface varies depending on which part of the globe you're looking at.
The Vernal Equinox occurs on March 21, when the sun shines directly over the Earth's equator. Night and day are precisely equal in both the northern and southern hemispheres on this day. The Sun advances towards the northern latitudes from March 21 until June 20 or 22. It then retreats back to its previous position from September 23 to November 22.
In the northern hemisphere, the sun sets due west around midnight and rises again around 6am the next morning. During the summer months it can rise as early as 3am in the north of Canada and 4am in the Arctic. In the winter months it can only rise as late as about 7am.
These are the only times during year when you will see all parts of the sky at once. All other times, either half of the sky is dark. Half of the sky is always light from one direction only - due south for those in the Northern Hemisphere or east for people in the Southern Hemisphere.
During the fall and spring equinoxes, the sun will set due west around midnight and rise again around 6am the next morning, but now it is setting over the southern hemisphere.