Star A is m= +8 and is 16x dimmer than star B, what is the m of star B? 

What sort of stars do irregular galaxies contain?

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What are unofficial constellations called?

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Regimes are comprised of both:

What is the leading theory for the energy source of an active galactic nuclei?

Pept-1 transports

If and a star is 5x the sun, what is the L of that star?

Trypsinogen is activated by