Program updates

You can update your copy of CyberSky 4 to version 4.0.7 by using the patch found below. The patch includes all of the bug fixes and other changes introduced since the release of CyberSky 4.

Use the link below to download the patch file.

Small CyberSky icon CyberSky 4.0.7 Patch
Patch file File size
cybersky407_patch.exe 1.56 MB (1,638,306129 bytes)

Note   A full version of CyberSky 4 must be installed on your computer before you can use the CyberSky 4.0.7 patch. The patch won’t work with a trial version of CyberSky 4, nor will it work with CyberSky 1, 2, or 3.

Installing the update

To install the CyberSky update on your computer, download the patch file, double-click the file to start the patch program, and then follow the instructions that appear.

During installation, the patch program modifies or “patches” the CyberSky program and Help file installed on your computer so that both include all of the improvements introduced in newer releases.

After you install the CyberSky update, you don’t need the patch file to run the program, but you should save it in case you need to reinstall CyberSky.

Release notes

All of the bug fixes, improvements, and other changes introduced since the release of CyberSky 4 are described below.

CyberSky 4.0.7

(May 23, 2009)

Bugs fixed in this version

  • The buttons labeled ---> in the Seasons dialog box always set the time to values correct for an observer in the Northern Hemisphere, even if the viewing location was set to a place in the Southern Hemisphere.

CyberSky 4.0.6

(March 29, 2009)

Bugs fixed in this version

  • The positions of some comets were not being calculated correctly. This bug only affected comets with near-parabolic orbits, those with eccentricities very close to one.

CyberSky 4.0.5

(February 5, 2009)

Bugs fixed in this version

  • The position of the dividing line between the illuminated and unilluminated part of a body that shows phases wasn’t being calculated correctly. This bug, which affected the appearance of Mercury, Venus, the Moon, and Mars, has now been fully corrected.
  • The rise, transit, and set times of meteor shower radiants weren’t being calculated correctly.

Improvements introduced in this version

  • The table of Delta-T values used by CyberSky has been updated with the value for 2009 published by the U.S. Naval Observatory. This increases the accuracy of the positions of the Sun, Moon, and planets for this year by a very small amount.
  • The program’s Help file has been corrected and updated.

CyberSky 4.0.4

(March 2, 2008)

Bugs fixed in this version

  • If you opened a saved map by dragging the map file to CyberSky, and that map was already open and had been modified in some way, the program didn’t reopen the saved map as it should have done. The program handled reopening the map in any other way correctly; only dragging the map file to the window wasn’t handled correctly.
  • If a point that is very close to the horizon was located at the center of the map, the program sometimes filled the area above the horizon with the same color used to fill the area below the horizon.

Improvements introduced in this version

  • The table of Delta-T values used by CyberSky has been updated with the values for 2007 and 2008 published by the U.S. Naval Observatory. This increases the accuracy of the positions of the Sun, Moon, and planets for these years by a very small amount.
  • The program’s Help file has been corrected and updated.

CyberSky 4.0.3

(July 29, 2007)

Bugs fixed in this version

  • The times displayed in the Lunar Phases dialog box were sometimes off by one or two minutes. This bug affected only the times displayed in the dialog box, not the position of the Moon on the map or information about the Moon displayed elsewhere in the program.
  • The universal times displayed in the Lunar Phases dialog box were shown in the same time format—12-hour (AM/PM) or 24-hour—as the local time, rather than always being displayed in 24-hour format.
  • The Measure command isn’t available when the Use Computer’s Clock option is turned on, or when the animation feature is being used. This is by design, because it makes no sense to measure angular separations if the objects on the map are moving with respect to each other. The Measure command therefore should have been removed from the menu that appears when you right-click the map, but it wasn’t.

CyberSky 4.0.2

(April 29, 2007)

Bugs fixed in this version

  • It wasn’t possible to enter negative temperature values in the Weather dialog box. This has been fixed, allowing CyberSky to adjust for the effect of atmospheric refraction in very cold weather conditions.

CyberSky 4.0.1

(December 30, 2006)

Bugs fixed in this version

  • If you quit CyberSky while the program’s main window was either maximized or minimized, the next time you ran CyberSky the main window was not restored correctly.
  • When using the program with certain Windows display settings, the contents of the Solar System window didn’t appear until after the window was resized for the first time.
  • When the Solar System window was resized, the contents of the window flickered very badly.
  • When the date format was set to year/month/day, the program incorrectly displayed dates in the year/day/month format.

Improvements introduced in this version

  • Keyboard shortcuts have been added for four frequently-used commands on the Time menu: CTRL+R for Sunrise, CTRL+SHIFT+R for Sunset, CTRL+Q for Moonrise, and CTRL+SHIFT+Q for Moonset.

CyberSky 4.0

(November 23, 2006)