In hydrogen gas within an emission nebula, what specific transition yields the characteristic deep red emission line ($ ext{H}oldsymbol{ ext{alpha}}$)?

Answer

The Balmer series transition to the second energy level

The familiar deep red color associated with hydrogen emission in these nebulae results specifically from the Balmer series transition where an electron drops to the second energy level.

In hydrogen gas within an emission nebula, what specific transition yields the characteristic deep red emission line ($	ext{H}oldsymbol{	ext{alpha}}$)?

#Videos

What Makes Emission Nebulae Glow In Distinct Colors? - YouTube

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