physical articles
What are the generally accepted five key physical characteristics used to map the cosmos?
Which physical property is considered the master control switch for a star's entire life cycle?
How does a star's lifespan scale compared to its initial mass?
What color do stars that peak at longer wavelengths predominantly appear as?
In the sequence O, B, A, F, G, K, and M used for spectral classes, which letter denotes the coolest stars?
What key factor must astronomers account for mathematically to derive a star's luminosity from its apparent brightness?
Besides surface temperature, what other measurable property directly influences a star's luminosity?
Approximately what celestial body's size is comparable to the radius of a white dwarf?
How is the radius (physical size) of a star most often determined by astronomers?
In astronomical terms, what does the term 'metals' refer to in the context of a star's chemical composition?