THIS planisphere measures 5½ in. by 5 in. and can be carried in the pocket without the slightest inconvenience. It shows how the stars appear for each month on any selected day or hour to an observer ...

Getting your Trinity Audio player ready... Some 1,500 years after stargazers began using rotating star maps to track celestial bodies’ journeys across the night sky, David Chandler figured out how to ...

“In each issue of Astronomy, you’ll find an all-sky map — a circular chart that shows the appearance of the sky after sunset this month. The all-sky map — found on page 63 of this issue — can help ...

The moon is growing brighter and will be full on Wednesday. If it's clear, a bright moon often makes it easier to recognize the more prominent constellations because the light hides the faint stars.

MOST students of the aspects of the heavens are familiar with the small circular planisphere having a revolving disc which can be adjusted to show the stars visible at any time of the year. The new ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Hammett’s Planisphere is a heavy ...