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Legal Topics

■ Licensing
■ Activation
■ Privacy
■ Copyright/Trademark


Legal Matters


Deep-Sky Planner and SQM Reader Pro include secure licensing technology. It is intended to reduce software piracy with minimal impact on legitimate users. Hacking, cracking and outright theft are the problems targeted - not legitimate use.

The license agreement permits an individual user to install the product on multiple computer systems owned by the licensee. This accommodates users who may have systems for home, office and field use. The license is not transferable.

After installing the product you will need to activate the license within 30 days. If you do not activate within that time period, the product will stop working.


Activation is done by using the Software Activator program included with your software. Please consult the online Help supplied with your Software Activator for more information about activating your software.

Important points

Privacy Policy

It is Knightware's policy to maintain confidentiality over your personal information. Your private information is just that - yours and private. Financial information is required only for payment, and this information is transmitted to our payment processors (PayPal and Square) over a secure encrypted connection during the check-out process. This connection is secured with up to 256-bit SSL encryption by Let's Encrypt. Knightware never receives or stores your financial information.

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Knightware will not sell or rent any of your personal information to third parties for any purpose without your explicit consent. Personal information includes name, address and e-mail address.

Knightware uses a third-party advertising company, Google, to serve ads when you visit this website. Google uses information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. Users may opt out of the use of Google's DART cookie by visiting the Google ad and content network privacy policy.


Deep-Sky Planner and SQM Reader Pro are protected by United States copyright laws and international treaties. All copyrights are owned by Knightware, LLC and/or Phyllis K. Lang, and are registered with the United States Copyright Office.

Revised NGC/IC data are compiled by Dr. Wolfgang Steinicke and subject to copyright. The Revised NGC/IC is used under license from Dr. Steinicke.

Astronomical Algorithms Software by Jeffrey Sax. (c) 1991 Wilmann-Bell, Inc. is used with permission of the publisher.

Deep-Sky Planner is a trademark of Knightware, LLC.
SQM Reader Pro is a trademark of Knightware, LLC.
Software engineered for observing is a trademark of Knightware, LLC.

All other trademarks are property of their respective holders.