Jo!
if my name was joanna i think i would go with Jo. i think its just cool to be Jo but not 'joe'. be different!
Her nickname is Jenn or Jenny. Jennifer Joanna Aniston
his nickname is K2
I'm not aware that the Sun has a nickname.
lada
you can use jona or jonalyne
Annabelle, analisa, Annie, Joanna
the beehive state
The Buckeye State
it is blondie
The Great One
Leo the cool lion that's cool
its not