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'''Main sequence''' is the stable phase of a star's lifetime, when outward pressure from internal fusion process using hydrogen for fuel is balanced by the inward force of self-gravitation. This phase is usually the longest phase of a star's lifetime.
'''Main sequence''' is the stable phase of a star's lifetime, when outward pressure from internal fusion process using hydrogen for fuel is balanced by the inward force of self-gravitation. This phase is usually the longest phase of a star's lifetime.
Our [[Sun]] is a main sequence [[star]].
Our [[Sun]] is a main sequence [[star]].
{{Stars}}
[[category:astronomy]]
[[category:astronomy]]