Update 2.116 for COELIX APEX
If you have an older version than 2.115, you must do
a full installation of the current version here.

Also, this update does not work with COELIX LITE. The lite version has its own updates.
To be considered complete, this update of COELIX APEX may require the execution of more than one installation program: main update of the software, update of the orbital elements of comets, update of orbital elements of asteroids, etc.

In each case, the download dialog box of your browser asks if you want to execute immediately or save the installation programs. Choose "Save" to keep a copy, and then run them from your computer.

Complementary updates

Update of the orbital elements of comets and asteroids

Click here to find out how to do the updates of the orbital elements of comets and asteroids.

A new update of the numbered IAU asteroids is included in COELIX APEX since the 2.116 version (more than 488,000 asteroids).

These updates are necessary to allow COELIX to display accurately the positions of comets and asteroids and calculate precisely the ephemeris of these celestial bodies.

Since the 2.094 version, for several comets and asteroids, Coelix uses the ephemeris calculated by the JPL, taking into account the gravitational perturbations, in order to obtain even greater precision. See here for more information.

Update of the longitude of the Jupiter's Red Spot

The longitude of Jupiter's Red Spot is now equal to
267 according to data from JUPOS.
You can update this value in COELIX in the menu Preferences and settings / Longitude of the Jupiter's Red Spot.

The longitude of the Red Spot varies randomly with time and must be updated several times a year to ensure that the Red Spot appears at the right place on the globe of Jupiter and that the times of its transits are accurate.

Installation of the Guide Star Catalogue

Required to ensure that COELIX APEX can show the stars to magnitude 15.6 in the sky maps of 16X zoom and in the visual fields.

You can install the Guide Star Catalogue if you got COELIX APEX via download and have not yet installed the GSC.
Installation of the GhostScript and GSView programs

The two free programs GhostScript and GSView are necessary to enable COELIX to save the sky maps and the graphic almanac in vectorial PDF format. You will then be able to view and print these maps and almanacs with Acrobat Reader ™.

See help in COELIX to download and install these programs.

Installation of the ASCOM platform

In order to control a motorized telescope with COELIX, you must download and install the ASCOM platform and the driver of the model of the telescope. These free programs are available on the ASCOM Website.

See help in COELIX to install and use ASCOM.
Description of the current update
Galileo project JPL NASA
Version Date Description
2.115 Jan. 28, 2017 Bright variable stars
Updating the times of maxima and minima.

List of stars and deep sky objects
Possibility to display a maximum of 6000 lines (was 2000 lines).
Fixed a bug that limited the number of lines displayed.

Observation planner
Fixed a bug in the project "The most beautiful double stars".

Software Installation
Changing the installer. Simplified and faster installation. Smaller file (better compression).
From now on, the installation will be done in the folder C:\NGC7000\CoelixApex\ for the APEX version
or C:\NGC7000\CoelixLite\ for the LITE version.
The program can now be uninstalled with the "Uninstall or modify a program" utility in Windows.
2.114 Dec. 29, 2016
Modify the appearance of the stars in the views to better bring out the bright ones compared to the weaker ones.

Updates for 2017: elements of comets, asteroids, meteors, etc.

Graphic Almanac 2017 for the LITE version.

Fix the following random problems that sometimes occurred when viewing celestial maps and graphical almanacs as PDF:
1- color overflows of the Milky Way on hemisphere format maps;
2- refuse to display the almanacs in PDF (correct the postscript script).

Correction in the positions of some weak galaxies around NGC 7331.
2.113 Aug. 31, 2016 Corrections
1- Fixed: errors in azimuths at sunrises and sunsets of the Moon and the Sun in ephemeris tables.
2- Missing lines at the end of some tables (catalogues of stars and DSO...).

Comets and asteroids
Update of tables.
2.112 June 15, 2016 Visual fields
Add predefined fields for the ZWO ASI cameras and for six new SBIG CCD cameras.

Ephemeris tables
Add azimuths at sunrises and at sunsets of celestial bodies in the ephemeris tables.

Solar system
New interactive list of transits of Mercury (1960-2100) and Venus (1600 to 2400)  in front of the Sun.

Other minor changes and corrections.

2.111 Jan. 9, 2016 Apex Version:
Possibility to manually add asteroids to the favorite asteroids by entering their orbital elements, as it was the case with comets.
Correction in the display of the list of favorite comets and asteroids .

Lite Version:
Ability to show the 2016 graphic almanac.
Correction in the display of the satellites of Uranus and Neptune.

All versions:
Improvements in the control of telescopes with ASCOM.
Updating elements of meteor showers for 2016.
Updating the minima and maxima times of bright variable stars.
Other minor fixes.
2.110 Aug. 25, 2015 Observation planner
When we ask a view of the sky by clicking in the last column of the list, the view of the sky will be visible even if the target object involved in the phenomenon is below the horizon at that time.

Telescopes control with ASCOM
Corrections to certain problems, improvements and updates caused by changes in the ASCOM platform and the change of the development tool used by the author.
Visual interface
Corrections in displaying the views in shades of red for night vision.
Possibility (in the Preferences and setings menu) to make invisible certain tabs of the pages that are not often used (eg games).

Double Stars
Adding a column giving the difference of magnitude of the components in the list of the 2300 double stars.
Sky Maps and whole sky view
If you want to obtain a new sky map centered on a selected object, you obtain a sky map perfectly centered on the object with the possibility of changing the zoom of the map.

If you click on the tab of whole sky view after asking to view an object in the zoomed view or the fields of view with the search engine, you get a view of the whole sky centered on the target object with a target pattern indicating the position of the object.

Correction for the position of the variable star SS Cyg.
Update of the Help about the local horizon.
Adding the Canon EOS 600D camera in the list of digital cameras for the visual fields.
History of the five previous updates
Main update                                            

Follow the instructions of the running installation program. Choose to install the update to the folder that already contains COELIXAPEX, eg C:\NGC7000\COELIXAPEX.

Please submit your personal activation key (include all characters, including the +, the -, the semicolon, etc.): (
Note: the key may be disabled if the update is downloaded to more three different computers).

Version Date Description
2.116 March 18, 2017 Tables of the ephemerides of comets and asteroids
Addition of two columns to give the displacement rates in arcsec/hour, in right ascension and declination.
This information can be used by an autoguiding software like PHD2 Guiding when you want to keep a comet motionless on a long exposure photo, but using a star to guide. The PHD2 Guiding software will automatically make corrections to keep the comet motionless during the photo if it knows the rate of displacement of the comet in relation to the stars.

Graphic Almanac
Possibility to choose certain elements to display or not to display.

Comets and asteroids
Update of orbital elements of JPL comets and numbered asteroids (more than 488000).

Zoomed view and visual fields
Possibility of not displaying comets and asteroids.
Increasing reaction speed when clicking on an object in these views to see its properties (especially when choosing to display a large number of asteroids).

The phenomena of the current month
Fixed a bug that could give false positives for simultaneous transits of shadows and/or satellites in front of Jupiter. (Note: there are some of these phenomena expected in May and June 2017).
Installation problem, virus or other...              

Note 1 : You can use this activation key to download and install this update on up to three computers you own.

Note 2 : In case of problems, please contact us at the email address given in the Contact page by sending us your activation key in your message.

See below
for improvements, changes and fixes in this update.