Make Canis Majoris Dim

Just wait until I shine again,
Then you can’t bear to see
The hypergiant your black hole
Tried to snuff stealthily.

I never saw how dark you were
When you were drawing near,
Until I saw that light could not
Escape your foul void’s sphere.

Shine as I might, it was no use;
You’re sucking life from me.
That’s how I gauged your dark matter,
Which not e’en you can see.

Oh, bless the vector that saved me
From the clutches of death.
I’ll make Canis Majoris dim,
Illuming heaven’s breath.

I’ll prove you’re insignificant:
‘Twas you who needed me.
I can create heat and brilliance,
But you can only feed.