Congress passed the Achieving a Better Life Experience Act on the final hour of the final day of Congress in December, creating a new type of tax-advantaged account called an ABLE account or a 529A. The hope is that ABLE accounts will help level the financial playing field for families raising kids with disabilities.
Since there are 360 degrees in a circle, this angle is about is about 1/7930 of the circumference of the circle. And the circle in question, the earth, has an average circumference of 40,041,470 meters. Dividing by 7930 results in 5048.88 meters, or a little over 5 kilometers. Remember, however, that this is based on an assumed height of 2 meters, which is very tall for a human. A shorter person would not be able to see as far; a taller person could see farther. But there are diminishing returns. For example, a 4 meter-tall person can't see twice as far as a 2-meter-tall person, but a 1-meter-tall person can see more than half as far as a 2-meter-tall person. Or...
The Stratosphere is located 10-45 miles up. However a part of Earth's atmosphere called the Ionosphere starts at about 100 miles above the earth, extending to approx. 600 miles above the Earth. So if you truly wanted to be clear of the Earth's atmosphere in its entirety, go beyond 600 miles to touch true space.