There are also “supersuns” and “microsuns” by the same meaning, although the variation is less because the Earth’s orbit around the sun is more circular than the moon’s orbit around the Earth. When a solar eclipse happens during a supermoon and/or a microsun, they are total, because the moon is then big enough to cover the entire sun. But when solar eclipses happen during micromoons, and especially so during supersuns, one gets annular eclipses, because the moon then doesn’t fully cover the sun.
Thanks coloradan.
Annular eclipses can also occur because of where the three bodies are in terms of the ecliptic (which is an imaginary and average plane). Total eclipses happen when the three are more nearly in the same plane. As you said, the perihelion coinciding with the apogee can make a potential total into an annular.
The difference between the moon’s apogee and perigee is about 13K miles, or almost 5 percent, seems like kind of a lot.
Earth’s perihelion is about 91 million miles, and aphelion is almost 95 million miles, more than 3 million miles difference, so, three to four percent. The northern hemisphere is (and will be throughout our lifetimes, and then some) closer to the Sun during our winter, making our winters (potentially) warmer than those of the southern hemisphere. Our summers are spent further from the Sun.
The southern hemisphere also has most of the water, and a big, more or less permanent block of ice (Antarctica) which makes their climate cooler overall that it would otherwise be.