The diminutive moon Phobos illustrated in transit over Mars. Phobos is so small that it lacks the gravity to give it a spherical shape. At 16 miles by 13 miles by 11 miles this tiny moon orbits close to Mars at mere 3,700 miles from the surface. It takes Phobos over 7.5 hours to make a single orbit around Mars
This illustration was created on the Apple iPad using the Apple Pencil and the Sketchbook Pro App. Below is a timelapse video of the artwork.