Clear Sky Institute, Inc


is pleased to offer


(XEphem logo background galaxy by Galaxy Photography)

Version 3.7.4

Available on 3 CD-Rs or download now


Your satisfaction is guaranteed!


Compared to the free version, the commerical version of XEphem adds the following advantages:

To order online, please go to our standard Order Form. If you prefer not to trust the web, you may send us a check, money order or purchase order. You can find the total amount to remit by filling out the same form mentioned above, clicking Compute total, and then just not proceeding with the final Purchase step. Send to:

XEphem Orders
8274 North Sunset Ranch Loop
Tucson AZ USA 85743

Federal Tax ID 42-1467154

Inquiries regarding commercial applications, large quantities or special considerations are welcome. Send a description of your situation to us at xephem@clearskyinstitute.com.

Packaging

XEphem is produced as 3 CDs. The same CDs serve Linux, MacOS X and all other UNIX-like systems.

Each CD includes an easy-to-use installation script for Linux or other UNIX and a standard Mac Package for use with the OSX Package Installer. CD 1 contains everything needed for a complete XEphem installation except that CDs 2 and 3 contain the Hubble GSC 2.2.0.1 which is a stellar catalog with some 450 million stars complete to magnitude 18.5. Each CD is about 500 MB.

Save time and money: the exact same three CD images may also be downloaded now from the web. Choose the "download edition" option in the Order Form.

We do not support XEphem on Microsoft Windows. However, depending on your skills and ambition, you might be able to get it to work yourself by compiling the free source code using porting tools such as Cygwin or MKS Toolkit. We can go so far as to say that occasionally we do build XEphem using both these tools to make sure there are no significant problems. We also verify that all the supporting catalogs, images and other auxiliary files beyond the executable itself are compatible with these tools. So building the executable from source code is up to you, but once that is running everything else will work fine. We can also mention that linux and Windows coexist quite well using VMWare.

Catalogs

The following table lists the catalogs included with the commercial version of XEphem 3.7. Together these add up to approximately half a billion stars (that's an average of 3 stars per square arc minute), one million deep sky objects, 250 thousand minor planets and several spacecraft.

Satisfaction Guaranteed
Further inquires may be sent to xephem@clearskyinstitute.com