How is a chart done for someone born on a leap year?!
Question: The same as for any other moment in time and in space.
You see, the Earth revolves around the sun in a fairly precise orbit and takes about 365.25 days to complete one orbit. There is no bump on the road every 4 years, so Earth always takes 365.25 days to complete its orbit. No more, no less.
That means Earth covers a complete 360° in 365.25 days.
Now, why do we ave that leap year, then? Simple. Blame the Romans... okay, seriously, have you tried celebrating a new year at 6 in the morning? It doesn't make sense, does it? So to avoid confusion, the Romans created a calendar, the Julian calendar. It counted 365 days, about 1/4 of a day sort each year. By around the 15th century, the seasons have changed too much. So again, for the sake of consistency, to keep the seasons in the same time of year every year, a solution was found. Calculating just how much the seasons have moved, they found that adding an extra day to the calendar every 4 years should at least cover that problem.
Only centuries later was found just exactly how long a year actually is.
Now, to get back to the degrees; from Earth's point of view the Sun makes a complete 360° orbit through the zodiac in those 365.25 days it takes Earth to orbit the sun. It doesn't know leap days or leap years, and at this very moment, the sun is somewhere on the exact same degree as it was on march 1st last year.
So in short, to answer your question; the same as you would on any other day.
Answers: The same as for any other moment in time and in space.
You see, the Earth revolves around the sun in a fairly precise orbit and takes about 365.25 days to complete one orbit. There is no bump on the road every 4 years, so Earth always takes 365.25 days to complete its orbit. No more, no less.
That means Earth covers a complete 360° in 365.25 days.
Now, why do we ave that leap year, then? Simple. Blame the Romans... okay, seriously, have you tried celebrating a new year at 6 in the morning? It doesn't make sense, does it? So to avoid confusion, the Romans created a calendar, the Julian calendar. It counted 365 days, about 1/4 of a day sort each year. By around the 15th century, the seasons have changed too much. So again, for the sake of consistency, to keep the seasons in the same time of year every year, a solution was found. Calculating just how much the seasons have moved, they found that adding an extra day to the calendar every 4 years should at least cover that problem.
Only centuries later was found just exactly how long a year actually is.
Now, to get back to the degrees; from Earth's point of view the Sun makes a complete 360° orbit through the zodiac in those 365.25 days it takes Earth to orbit the sun. It doesn't know leap days or leap years, and at this very moment, the sun is somewhere on the exact same degree as it was on march 1st last year.
So in short, to answer your question; the same as you would on any other day.