Sketching at the telescope: Richard Baum’s Mars south polar cap

on Thursday, June 17, 2010

Mars and its south polar cap sketched by Richard Baum with a 4.5-inch scope at 186x, August 17, 1971, from 0h to 1h UT. David J. Eicher library

Today’s sketch is one by English observer Richard Baum showing Mars’ south polar cap. Baum’s notation reads: “Showing indentation in cap with indications of ragged edge. Region surrounding cap relatively blank except for a pale greenish orange hue.”

To learn more about astronomical sketching, Astronomy magazine subscribers can access my Astronomy.com video "Sketching from the telescope" and read Glenn Chaple's Observing Basics column "Sketching 101."

See the rest of the Sketching at the telescope series.

Comments

To leave a comment you must be a member of our community.
Login to your account now, or register for an account to start participating.

Most recent | Oldest to newest

No one has commented yet.

Email Newsletter Signup

FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. View our Privacy Policy.

Follow us:
Facebook
Twitter
Google+

Find us on Facebook

Astronomy Magazine

ABOUT THE MAGAZINE

SUBSCRIBER EXTRAS

IN EVERY ISSUE

COLUMNISTS

FEATURES

RECENT HEADLINES

TOPICS

RECENT HEADLINES

TOPICS

RECENT HEADLINES

TOPICS

PICTURE OF THE DAY

RECENT GALLERIES

TOPICS

RECENT POSTS

TOPICS

READER GALLERIES

TOPICS

NEW PRODUCTS

IN OUR STORE

CURRENT ISSUE

Sketching at the telescope: Richard Baum’s Mars south polar cap