Allows users to locate astronomical data by month and choose from a list of observatories.

Read an overview of the lunar calendar and a guide to reconciling it with current dates. Provides English translations of terminology.

Calendar measures the phases of the moon. Select a day and year to view the illumination.

Month-at-a-glance astronomy calendar tells what's going on in the skies. Includes data for the current month, previous month and next month.

Covers space-related activities and anniversaries for the coming year. Includes many links to homepages for further information plus archives.

Norwegian systems analyst presents his sky calendar, which displays astronomical data and can be customized. Includes a forum links to resources.

View the current phase of the moon or the phase at another date and time, courtesy of the US Naval Observatory.