Image Details
Caption: Fig. 13.
Surface density map of the dust, as inferred from the dust density model. Small black dot (upper center) shows the position of the Sun, which nearly lies on a small local feature, known as the Orion arm. Arms are incomplete on the side opposite the Sun owing to incomplete H II data.
© 2001. The American Astronomical Society. All rights reserved. Printed in U.S.A.