Update 2.126 for COELIX APEX
If you have an older version than 2.118, 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.

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 available on the JUPOS website.
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 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
2.125 Oct. 9, 2022 The planet Jupiter
Fixed a bug that gave an incomplete display of Jupiter's globe when the longitude of the red spot was between 0° and 98°.

Comets and asteroids
Updated orbital elements for MPC comets.

Graphic Almanac
Possibility to display the 2023 almanac for the Demo version.
2.124 Dec. 18, 2021 Visual fields
Added 61 preset models of CCD-CMOS cameras for a total of 271.
Addition of 7 preset models of digital cameras (Canon and Nikon).
Modification of the limiting magnitudes of stars.

Graphic Almanac
Possibility to display the 2022 almanac for the Lite version.
Return of the window that allows you to adjust the sheet formats (Letter, A0, ...) for PDF printing.

Variable stars
Update of the dates of the maxima and minima of bright variable stars, including Algol, Mira ...

Comets and asteroids
Updated orbital elements of MPC for comets and JPL for asteroids.
Update to accommodate the change in format of the JPL Horizon System ephemeris.

Update of the main meteor showers for 2022.

Bug fixes
The phenomena of the month displayed some non-existent Venus greatest elongations.

Error message in the orbital element tables of comets and asteroids when we wanted to display the additional information form or the zoomed view of the selected object.

Azimuth and elevation were incorrect in some information forms of an object clicked in the zoomed view or visual field.
2.123 April 23, 2021 Display problem in the magnified view and visual field
A problem introduced in one of the last versions caused the stars and the Sun to appear in front of the Moon.

Table of topocentric ephemeris
The altitude and azimuth as a function of time were incorrect in some circumstances.

Comets and asteroids
Updated orbital elements of MPC for comets and JPL for asteroids.

Arduino-Skypikit telescope control
In addition to equatorial mounts, it is now possible to control Altazimuth and Dobsonian mounts with Coelix and Skypikit-Fex in motorized mode and in Push-To mode (without motor).
2.122 Jan. 5, 2021 PDF saving and printing of star maps and almanacs
We simplify the conversion of sky maps and graphic almanacs into PDF format. GhostScript and GSView software are no longer used. Coelix now saves maps and almanacs in postscript vector format (.PS).
To convert .PS file to .PDF file, you can easily do it with free applications available on the internet or directly online with sites like PS2PDF.COM. This gives you a PDF file that you can open in Adobe Acrobat and then print in the page size you want.

Update of comets and asteroids
The way to update the orbital elements of comets and asteroids is changed. This was made necessary because the JPL changed the format of the source files and the MPC no longer maintains the list of current bright asteroids.
See this page for all the information.

Other updates and fixes
Elements of meteor showers for 2021.

Possibility to manually reduce the ASCOM telescope control panel so as not to hide too much the other views.

The animation panel keeps the value of the current animation step and does not always reset to 4 minutes when you change page.

The hours of the sunrises-transits-sunsets were not good for an object clicked in a sky map from an epoch other than the current time of the site, for example epoch 2000.0 if it is now a date in 2021.

The satellites of Uranus and Neptune did not move when we wanted to recenter the field on a clicked point in the zoomed view or visual field.

The satellites of Mars, Uranus and Neptune are calculated and visible until 2040 with the forecasts of JPL Horizon.

Ability to immediately click another object in the zoomed view or visual field if no object is found at the location initially clicked.

Some other small fixes ...
2.121 May 3, 2020 3D views   New
Adding a new section allowing to have 3-dimensional views of phenomena using red and cyan 3D glasses.

In this version, you can get an animated view of the movement of the Earth and a comet or an asteroid in their orbits with a real perspective effect. Go to the new section "3D VIEWS".

Bug fix: ephemeris and paths of comets with hyperbolic orbit were not calculated correctly from the orbital elements of the MPC. These comets are rare but the comet C/2020 F8 SWAN visible in 2020 is one of them.

Added very precise ephemeris from JPL Horizon for the following comets in the comethp folder:
C/2019 Y4 ATLAS, C/2020 F8 SWAN, C/2020 F3 NEOWISE, C/2019 U6 LEMMON.

2.120 Dec. 24, 2019 Telescope control
Ability to control with COELIX, telescopes modified with the SKYPIKIT project. See the page on the ARDUINO-SKYPIKIT motor control project.
Close encounters of celestial bodies
List a greater number of close encounters of celestial bodies (Moon-planets-stars) in the Graphic Almanac and in the lists of phenomena.
Graphic Almanac
Almanac 2020 available for free LITE version.
Meteor showers
Updating elements of meteor showers for 2020.
Other minor updates and corrections.
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
2.125 Oct. 9, 2022 Jupiter's red spot
With each update, Coelix is delivered with the value of the longitude of the Red Spot in Jupiter's rotation system II. However, this value is not fixed since the Red Spot currently drifts by approximately 20° per year in system II. If we wanted to display Jupiter several months after installing Coelix without updating the longitude of the Red Spot in Preferences and Adjustments, the spot was no longer in the right place because of the drift. In order for Coelix to take this drift into account and display the position of the Red Spot more precisely, we can now add a value for this drift in Preferences and Adjustments. Before each Jupiter observation period, it is still recommended to update the longitude and drift values using data obtained from the JUPOS website.

Manual entry of the orbital elements of a comet or asteroid
Ability to manually enter the orbital elements of a comet or asteroid to automatically add them to favorites. This can be useful for a new object that is not yet in the MPC or JPL lists, for example a newly discovered asteroid passing near Earth.

Updated comet and asteroid elements
Updated MPC orbital elements for comets.
Updated orbital elements of the first 50,000 numbered asteroids from JPL.

Astronomical cameras for visual fields
Added 42 new predefined models of astronomical cameras (in the Altaļr, Atik, QHYCCD, SVBONY, ZWO brands).

Three-dimensional views
The 3D Views tab is removed from the home page. However, the three-dimensional view of the orbit of a comet or asteroid, using red-cyan 3D glasses, is available by clicking on the object's row in the orbital element table.

Graphic Almanac
Ability to display the 2024 almanac for the Demo version.

Shooting Stars
Updated shooting star shower elements for 2024.

Bright variable stars
Updated dates of maxima and minima of bright variable stars.
Preferably use Google Chrome or Internet Explorer to download COELIX. Microsoft Edge could block it saying that this software has not been downloaded often by Internet standards, especially when the update is recent.

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.
NGC7000   H alpha   JV
NGC7000 H alpha JV