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The Sun

The Sun is a yellow dwarf star (G2V), about 4.6 billion years old, and the dominant gravitational force in the Solar System. It has a diameter of roughly 1.4 million kilometers and contains around 99.8% of the Solar System’s mass. Nuclear fusion in its core converts hydrogen into helium, producing energy that warms the planets. Above the core lie the radiative and convective zones, followed by the visible photosphere (~5,500 °C), the chromosphere, and the much hotter corona (~2 million °C).

Source: science.nasa.gov

APODs including "The Sun"

Full Flower Moonrise

09/05/2020

Full Flower Moonrise
Image Credit: Tiziano Boldrini / NASA APOD

Rising as the Sun set, the Moon was bright and full in planet Earth skies on May 7 and known to some as a Flower Moon. Near the horizon it does seem to take on rose pink hues of reddened sunlight in this reflective twilight scene. In fact one of the brighter Full Moons of the year, this month's full lunar phase occurred within about 32 hours of perigee. That's the closest point in the Moon's elliptical orbit. Flooded field and ruined church tower are near the municipality of Casaleggio Novara, Piedmont Region of northern Italy.