👉 Pyrheliometric is a concept in astrophysics that refers to a specific type of star that has two distinct phases, or "pyrhelites," within its生命周期。 The first phase is called the "primary" (or "main") phase, during which the star's mass and energy are concentrated, while the second phase is called the "secondary" (or "secondary" or "quasi-stellar") phase, where the star's mass and energy are distributed more evenly between
