- #INSTALLING ASTROMETRY INDEX ON EKOS KSTARS INSTALL#
- #INSTALLING ASTROMETRY INDEX ON EKOS KSTARS OFFLINE#
#INSTALLING ASTROMETRY INDEX ON EKOS KSTARS INSTALL#
This is going to make a world of difference for Windows users who cannot install unless they do it in a compatibility layer. Since this library is entirely internal, no programs have to be installed beyond KStars itself, so if you are going to use this option, you don't need the package at all. It uses no external files like configuration files etc, and saves no files to disk (except 0KB solved and cancel files) which is great for Raspberry Pis. StellarSolver: This option uses an internal library build of.In StellarSolver, there are 4 options for that The program that will be used to do the solving of the sources that were found. SExtractor is very good at extracting stars, and that greatly speeds up solving, but it requires tuning up the options to perfect it for your optical train. Note: Either Internal SEP or External Sextractor should be superior to the built-in version of the programs. And finally, ASTAP has its own internal source extractor which is pretty good. Local uses its own source extraction method which uses a bunch of external resources including python, netpbm and other packages. StellarSolver uses SEP, just like the Internal SEP setting. BuiltIn Sextractor: This uses whatever method of source extraction the solver uses by default.The drawback is you would need to have sextractor installed and it does save a bunch of files to disk in order to do its operations. This is their official standalone program. External Sextractor: this does require an external program, SExtractor, or the Source Extractor.
It is entirely internal to the program, so there are no files saved to disk for the extraction which is great for Raspberry Pis etc. It is essentially a library version of the method below (though there are some differences which is why they give slightly different results).
Internal SEP: this requires no external programs, it is the same SEP star extraction algorithm that has existed in KStars for Focus and Guiding for awhile no w. In StellarSolver, there are options for 3 different methods: To find the stars in your image in order to solve. #INSTALLING ASTROMETRY INDEX ON EKOS KSTARS OFFLINE#
StellarSolver is an astrometric plate-solving library that has been integrated into Ekos in order to provide accurate and efficient offline plate solving.įor plate-solving there are several parts in StellarSolver that are important: Captured images are solved on the remote machine.
Remote Solver: The remote solver is an offline solver the resides on a different machine (for example, you can use Astrometry solver on StellarMate). The built-in solver is fast and supported across all platforms. Furthermore, it supports online (internet-based) solving, ASTAP, and local offline solver (Available for macOS & Linux). StellarSolver supports native plate-solving based on. StellarSolver: The default solver in Ekos. Most popular commercial telescope nowadays support such commands.įor the Ekos Alignment Module to work, you have an option of either utilizing the built-in StellarSolver, or remote solver This will enable the user to adjust the mount until the misalignment is minimized.Īt a minimum, you need a CCD/Webcam and a telescope that supports Slew & Sync commands. It captures a couple of images near the meridian and east/west of the meridian. Legacy Polar Alignment Tool: If Polaris is not visible, this tool can be used to measure and correct polar alignment errors. It takes three images near the celestial pole (Close to Polaris for Northern Hemisphere) and then calculates the offset between the mount axis and polar axis. Polar Alignment Assitant Tool: An easy to use tool for measuring and correcting polar errors. Ekos can then correct the discrepancy by either syncing to the new coordinates, or by slewing the mount to the desired target originally requested.įurthermore, Ekos provides two tools to measure and correct polar alignment errors: The magnitude of this discrepancy can range from a few arcminutes to a couple of degrees. Often, there is a discrepancy between where the telescope thinks it is looking at and where it is truly pointing. Once the coordinates are determined, the true pointing of the telescope is known. The solver essentially performs a pattern recognition against a catalog of millions of stars. Ekos begins by capturing an image of a starfield, feeding that image to the solver, and getting the central coordinates (RA, DEC) of the image. This is possible thanks to the StellarSolver library. Ekos Alignment Module enables highly accurate GOTOs to within sub-arcseconds accuracy and can measure and correct polar alignment errors.
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