The helmet is the interesting problem: it is glass, so it only reads as glass if it stays lighter than the face behind it. Leave it white and color the cat through it. The suit splits into panels with a control box on the chest, which gives somewhere to be careful. This astronaut cat coloring page suits six and up. The birthday cat is the other costume page.
A cat floating in a space suit, stars around it.
More cat drawings to try
Astronaut Cat: how to draw it step by step
Here is astronaut cat in 8 steps.
Draw the round helmet first, a large circle.
Add the cat's face inside it, ears flattened.
Draw the suit body below the helmet.
Add the collar ring where the helmet meets the suit.
Put the control box on the chest with its buttons.
Add the two arms out to the sides, gloved.
Draw the two legs with boots, floating.
Finish with the tail and the stars around.
What you need
Paper, a pencil and an eraser.