Astronomy observation log. Observation Log is a Windows software to log astronomy observations. The software uses an SQL Server Compact Edition database, and comes with a database containing the full Messier catalog.
This program, though it is still somewhat a work in progress, is 100% functional, and already has all the features of any other observation log application.

Requirements:
* .NET Framework
* SQL Server Compact Edition

The license of this software is Free, you can free download and free use this application software.