Glow in the Dark

When my son was a boy
In his bedroom, at night,
All the stars on his ceiling
Were subtly bright.

They were randomly stuck there
But looked, when they glowed,
Like the heavens above
And the stars that they showed.

With just one little glitch,
Which my son has corrected
(And, knowing him well,
Which I should have expected).

For on his son's ceiling,
All lookers can dig
Constellations, like Dippers,
Both Little and Big.

Cassiopeia's there
And Orion is, too.
Come visit and Henry
Will show them to you.

When something we've given
Our children takes hold
And is shared and improved on,
That's grandparent gold.