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After a pretty dreary September and part of October, I was finally able to get out with students to do some viewing. Here are some of the objects viewed over two nights using Starlight Live software on my Borg 77edii (f/4) and Borg 125SD (f/5) with a Trius 694 mono camera. In most cases an IDAS NB-1 "nebula" filter was employed to help with the suburban light pollution in our skies. The first night (mainly 125SD) was much steadier and drier, but along the coast we take what we can get when it isn't raining! ;-D
It's so much fun to see these objects from less-than-optimal skies... I often intend to quit much earlier, only to find myself saying (over and over!) "... oh, look, <object> is coming up... I should just have a look at that before I pack up." And then another hour goes by!
- Greg A
Eastern & Western Veil
Comparison of FOV between two scopes on the NA Nebula
Again, FOV comparison on the Elephant Trunk Nebula
And again, with the Rosette Nebula
Pacman Nebula through the 125SD:
And Crab Nebula:
And the Cocoon Nebula:
Finally, a few wider shots of objects using the Borg77: Flame/Horsehead, California Nebula, Pelican Nebula and Andromeda Galaxy:
I acquired an Ultrastar C for EAA last fall. (I only got a few chances to use it over the winter, but we got some desperately needed rain instead. So that's ok.)
The Ultrastar C has been astounding on the few evenings where the fates have yielded to properly working equipment and clear skies.
I'm looking for pointers to tools and techniques for post-processing the color FITs image stacks captured from Starlight Live. I'm on a Mac so that limits some of the software options available.
The docs for Starlight Live say there is a command line option ('-load-image-rggb') to reload a color FITs file into the program. Does this work from a Mac command line?
Are there any other Mac programs that can read the Bayer RGGB color FITs files exported from Starlight Live for manipulation. Or something that can demosaic and export the files for manipulation in Photoshop? Maybe Nebulosity4.
StarlightLive V3.2 is now available to download from the SX website:
Bug fixes and some minor new features. Change log as follows:
- Renamed command line argument 'force-sx-vid' to '-force-sx-vid' for consistency with other command line arguments.
- Renamed command line argument 'force-sx-pid' to '-add-sx-vid' for clarity of the command line argument functionality.
- Added new command line argument '-exclusive-sx-pid' which allows the user to force the application to only connect to the SX camera with the matching PID. All other cameras will be ignored.
- Added FWHM limit to stacking options. Setting 'Max FWHM' to 0.0 disables this feature, otherwise if for a given exposure the mean FWHM exceeds the value specified on the user interface the exposure is dropped and not added to the current live stack.
- Added automatic dropping of an exposure if the mean alignment error exceeds 1.0 pixels as this typically means the alignment algorithm has failed to reach a sufficient solution.
- Updated QT application framework to version 5.7 for latest feature and bug fixes. For the Windows version, this has forced an update in development tool chain (Visual Studio 2015) therefore the latest Visual C++ redistributable may be required to run the application. This is available from the Microsoft web site at the following URL: https://www.microsoft.com/en-gb/download/details.aspx?id=48145
- Fixed Bug: Issues with text edit boxes on image export tab.
- Fixed Bug: Camera exposure timer was not restarted when no exposure buffers are available.
Windows users - PLEASE NOTE - as above you will most likely need to download and install the VS2015 x86 re-distributables from Microsoft otherwise the application will not run.
As always I hope the application helps explore the magnificent skies and have fun :-)