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Knightware released an update to
Deep-Sky Planner 7
on 8 September 2016.

See the Knightware astronomy software calendar of events.

Deep-Sky Planner 7 Trial Edition is available by digital download.


Deep-Sky Planner

Observation Planning and Logging
Astronomy Software

Watch our latest
Deep-Sky Planner Webinar

Presented 12 Sep 2016

Deep-Sky Planner webinar
Click to view

Deep-Sky Planner Awards

2014 astronomy software award

Read More

2013 astronomy software award

Read More

New! Announcing the best
Deep-Sky Planner yet

Deep-Sky Planner 7 astronomy software for Windows provides the powerful, accurate tools you need to make your time at the telescope more efficient and enjoyable. Discover what you can observe, when and where to observe it, and what it looks like. Once you've observed an object, record the observation in the most feature-complete observing log anywhere. Your observations can be exchanged with other astronomy software that supports OpenAstronomyLog - the world's first open, non-proprietary international standard for recording observations.

newSee the latest review of Deep-Sky Planner 7

Deep-sky Planner video library See the Deep-Sky Planner 7 introduction video page

Ready to purchase? Visit the Knightware Store to purchase securely online now!

buy Deep-Sky Planner 6 astronomy software

Upgrade Now! Upgrade pricing is available for owners of version 6 (see upgrade policy). See the Knightware Store for purchasing information.

Customers often report that Deep-Sky Planner has the best user interface among astronomy software. That's no accident: it's a commitment to making your observing as productive and enjoyable as possible. See why.

Deep-Sky Planner is compatible with Windows 7, 8, and 10. See 10

"I won't hesitate to say Deep-Sky Planner 6 was one of the most professional, best-working astronomy programs I'd used in a while..."
- Rod Mollise, Sky & Telescope magazine July 2015
"Just wanted to let you know that I have tried a number of 'Planner' programs XXXX [sic] and I find that DSP6 works the best. I know of a number of other people that also swear by this program."
- Steve B, California
"Just a quick comment.  I don't know how I'd plan my astrophotography without this tool!  Especially the artificial horizon feature which saves me a lot of time."
- David L, Queensland Australia
"By far the cleanest and most trouble free piece of Astronomy related software I own!"
- Joe D, Texas

Product Highlights


Astronomy software relies on accurate data. Version 7 has the latest and best deep-sky and stellar data available. Data is taken from the latest professional, peer-reviewed catalogs and now contains 1.55 million objects. Version 7 includes the latest (2016) Revised NGC/IC catalog by Dr. Wolfgang Steinicke. Other catalogs have been added or updated and many corrections and cross references have been made to the database. Stellar data have been updated to permit high accuracy binary star ephemerides for well-studied visual systems, and predictions of variable star light extrema. Catalog data is treated differently than any other software in the industry. See why.

Accurate ephemerides may be calculated for Sun, moon, planets, comets and asteroids. You can do filtered and sorted searches for asteroids and comets.

SkySafariArgo NavisObserving plans can be built containing any of over 1.55 million objects in the database, or any other that you define. The online Plan Library has hundreds of pre-built plans ready for download. Plans run in real-time or for any time and place that you select. Plans can be loaded into Argo Navis or Sky Commander devices. They can also be shared with SkySafari, ACP and Sequence Generator Pro software. Learn more.


Data reporting is vital to astronomy software. Deep-Sky Planner includes several reports for planning and logging. Each can be printed, saved in HTML, plain text or delimited text (CSV) formats. Reports may be customized extensively. See how.


Astronomy software often treats logging as an insignificant addition, but not Deep-Sky Planner. The logging features are the most feature-complete available, and they are fully integrated with all planning features. The software learns which observing session and equipment you are using as you enter observations so that your workflow is optimized. The log is also fully searchable and reports are completely customizable. See how

OpenAstronomyLogThe log supports recording extensive sky and weather conditions data, including direct reading support for Unihedron's Sky Quality Meter models LE, LU and LR. Still images, scanned sketches, video and audio can also be attached to observations.

Your observations are also more portable than ever: Deep-Sky Planner 7 allows you to exchange observations with other astronomy software using OpenAstronomyLog 2.1, an international standard for observation exchange. You can also save your log reports as HTML, plain text, or delimited text (CSV).

Star Charting

Deep-Sky Planner interoperates intelligently with leading planetarium software giving you the very best star charting functions available without duplicating features and costs. Use with TheSkyX Pro, TheSky6, Starry Night, Redshift and Cartes du Ciel. See how.

Controlling Telescopes

ascomEnjoy computer control of your telescope, and receive real-time feedback from your telescope or digital setting circles. See how.

Telescope control is a standard feature of Deep-Sky Planner and requires ASCOM 6 or earlier (free).

Push-To feature allows you to transmit the position of any object in a report to your Sky Commander or Argo Navis device. This allows you to use the device's object locating capability to find any object, including asteroids and comets.

Ease of Use

Windows Logo CompliantAstronomy software doesn't have to be hard to use!  Unlike most astronomy software, Deep-Sky Planner is designed to follow Microsoft's Windows Software Logo product guidelines. The software interacts with Windows in many standard ways that most observing software doesn't. It also works with Windows10, 8 and 7 without User Account Control security problems. You can even install separate copies on one computer for multiple users. See how.

Deep-sky Planner video library Check out the the video library and see how to plan and log observations.


Deep-Sky Planner 7 astronomy software download
Available now by digital delivery

Deep-Sky Planner 7 CD
Available now on CD

Purchase Now

Please visit the Knightware Store to purchase astronomy software securely using PayPal. Customers in the United States can also purchase securely using Square. Shipping is free.

Pay with PayPal   

Astronomy clubs and societies can purchase Deep-Sky Planner at a discount. Click here for details.


buy Deep-Sky Planner 6 astronomy software

Deep-Sky Planner 7 astronomy software has a 30 day money back guarantee.
(See policies.)

The latest Deep-Sky Planner News on Facebook. You can also visit the deepskyplanner Google+ page

Hardware and software requirements:

You need the following hardware and operating system software to run this product:

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