Somebody on one of the blogs mentioned about 5 degrees, make that 3.6 degrees, which is a hundredth of the full circle or 0.06 rad, and since for such values x

Somebody on one of the blogs mentioned about 5 degrees, make that 3.6 degrees, which is a hundredth of the full circle or 0.06 rad, and since for such values x is approximately tan(x), it would be about 4 billion times 0.06 or 240 million lightyears narrow at our distance.