SkyTools 4 Updates

Latest version: SkyTools 4.0e

Updates includes all previous fixes.

Update Manually

If connected to the Internet you will be prompted from within SkyTools to download the latest update automatically and no further action is necessary. To update manually, close SkyTools, download the update file from the link below and run it. 


Download latest SkyTools 4 update (10 MB)    


Note: there may be a delay the first time SkyTools is run after the update as necessary changes are made to your custom databases. Please do not force an exit. Minor planet users should update their minor planet database after updating. 

Fixes/Additions/Changes in Version 4.0e

  • The code that estimates the longitude of Jupiter's Great Red Spot (GRS) was not working properly for dates after mid-June. This has been fixed.

  • The Add Objects button on the Target Selection Tool has been replaced with a menu with two selections: Designation Search (the original result of pressing Add Objects), and Database Power Search.

  • A bug was fixed that affected the surface brightness used in the calulations for some galaxies.

  • On the locations dialog, the Bortle class selection for the skjy brightness was not being correctly set to match the sky brightness when the sky brightness dialog was re-opened.

  • The detector selection on the select Camera dialog (for your imaging project) now uses a fixed size dialog rather than a large menu, which was awkward to scroll.

  • Various other minor fixes and enhancements have been made. 

Fixes/Additions/Changes in Version 4.0d

  • The algorithm for estimating the signal and SNR for comets has been completely redone from scratch. It should now be much more accurate and consistent. A new selection has been added to the "Expose for..." menu for comets called "Comet core" which estimates the signal/SNR for the central bright part of the comet only.

  • Many fixes and enhancements have been made for imaging systems that employ multiple focal changers.

  • Many fixes and enhancements have been made for imaging systems consisting of cameras with multiple fixed lenses. 

  • Fixes and enhancements have been made to the f-stop settings for imaging systems consisting of cameras with multiple fixed lenses.

  • Fixes have been made to the guider FOV for external guide scopes.

  • Fixes have been made to the minor planet database so that it will work properly with the epochs used by the MPCORB database.

  • The download of a single minor planet is once again working.

  • The Camera dialog has been redesigned to be shorter so it will fit on small screens.

  • The All Novae/Supernovae subscription is now working properly

  • The Scheduler now displays coordinates for slews of imaging systems that use a hand controller.

  • Various fixes and enhancements have been made to the Exposure Calculator to better initialize itself when opened for targets and imaging projects via a right-click on the Target Selection, Scheduler, and Real Time Tools. 

  • The Exposure Calculator now opens properly via a right-click on the Atlas.

  • A fix has been implemented that could cause problems after deleting an imaging project.

  • Adding multiple imaging systems without exiting the Imaging Systems dialog should no longer cause confusion between OTAs attached to the imaging systems.

  • Various other minor fixes and enhancements have been made. 

Fixes/Additions/Changes in Version 4.0c

  • Viewing a FITS image in the SkyTools Image Viewer could cause a crash, which has now been fixed. 

  • Target Selection Tool: the Start and Duration of the exposure period was always displayed for the automatically selected time period to image. Now it will display the time period corresponding to the IQ selected when the Night Filters are enabled. This means that if you set the IQ to C, the exposure time period listed (Start and Duration columns) will be from the start to the end of the period of time when the IQ is C or better. 

  • Support has been added for smarter window positioning on multiple monitors, particularly when maximized. A check is also made to see if the window is opening on a missing monitor. The window is repositioned on the main monitor if this happens. 

  • As a result of the multiple monitor support, chart windows will now open in their last size and position.

  • The IQ line on the NightBar was not always drawing correctly for comets on the Target Selection, Scheduler, and Real Time tools.

  • The spoken object information feature was missing a DLL file to make it work. This feature was developed primarily for SkyTools Visual, but some may find it useful for Imaging as well. Press the Speech button on the bottom right of the Object Info dialog to enable/disable spoken info.

  • When SkyTools starts, the introduction window that appears will now display the progress of the subscription updates that are occurring. In some cases it may take more than a few seconds to update one or more subscriptions, so this lets the user know what's going on. 

  • The Designation Search dialog now defaults to the target list displayed on the Target Selection tool when opened via the "Add Objects" button.

  • When editing a camera, the detector had to be set to manual in order for the camera to be saved without an error.

  • Target Selection: enabling the time sliders was forcing the Night Filters to be enabled even though they were turned off.

  • The open cluster NGC 2112 had no position and magnitude and there was also a non-existent open cluster that sometimes appeared. 

  • Some additions have been made to the help system.

  • Various minor bugs have been fixed

Fixes/Additions/Changes in Version 4.0b

  • A fix was made to a bug in the iTelescope update process

  • A new button has been added to the Subscriptions dialog that will force an update of your selected subscriptions

Fixes/Additions/Changes in Version 4.0a

  • Download and display of DSS images on the Imaging Project Composition tab is now supported 

  • Selecting a camera from the camera pool sometimes added the wrong camera

  • The Gain selection on the exposure calculator was not working properly

  • Classic stars were being drawn on the charts with an unwanted "shadow" outline

  • An important settings file was not being properly created the first time SkyTools was started, causing a wide range of strange behaviors 

  • The camera and filter pools are now being updated automatically from the web when SkyTools starts. This will allow Skyhound to quickly disseminate new cameras and filters

  • When SkyTools 3 observing lists with supplemental database objects are imported, an attempt is made to associate the supplemental database objects with newly added primary database objects

  • The YearBar sometimes failed to redraw properly as it was being computed

  • Supplemental Deep Sky Database objects were failing to delete

  • Some nebulae were failing to draw on the charts (including the Tarantula nebula)

  • The Exposure Calculator was using surface brightness calculations when Expose For was set to Stars

  • The air temperature units on the Exposure Calculator were not always working correctly, nor were they being saved properly

  • The STScI Digital Sky Survey image server has been added as choice to download DSS images from. Note that as of this writing the LEDAS server no longer seems to be working, apparently due to a problem on their end. 

  • Various problems associated with attachment folders have been addressed

  • Various problems associated with importing SkyTools 3 observing lists have been addressed

  • Various minor bugs have been fixed

Anticipated in the Next Update

  • Backup / Restore