Cassiopeia - Prussian Blue / Indigo / Ohio

Preußischblau or Berliner Blau - iron(III) ferrocyanide, ferric ferrocyanide, iron(III) hexacyanoferrate(II), and ferric hexacyanoferrate - discovered by accident by painter Heinrich Diesbach and Johann Konrad Dippel in Berlin in 1704-5

Joseph Cornell. Cassiopeia

Would the departed never nowhere nohow reappear? Ever he would wander, selfcompelled, to the extreme limit of his cometary orbit, beyond the fixed stars and variable suns and telescopic planets, astronomical waifs and strays, to the extreme boundary of space, passing from land to land, among peoples, amid events. Somewhere imperceptibly he would hear and somehow reluctantly, suncompelled, obey the summons of recall. Whence, disappearing from the constellation of the Northern Crown he would somehow reappear reborn above delta in the constellation of Cassiopeia and after incalculable eons of peregrination return an estranged avenger, a wreaker of justice on malefactors, a dark crusader, a sleeper awakened, with financial resources (by supposition) surpassing those of Rothschild or the silver king.

James Joyce. Ulysses.

Twinkle, twinkle, little star,
How I wonder what you are!
Up above the world so high,
Like a diamond in the sky.

When the blazing sun is gone,
When he nothing shines upon,
Then you show your little light,
Twinkle, twinkle, all the night.

Then the Trav'ller in the dark,
Thanks you for your tiny spark,
He could not see which way to go,
If you did not twinkle so.

In the dark blue sky you keep,
And often through my curtains peep,
For you never shut you eye,
Till the sun is in the sky.

'Tis your bright and tiny spark,
Lights the trav'ller in the dark:
Tho' I know not what you are,
Twinkle, twinkle, little star.