The open-source planetarium software KStars has officially released version v3.7.4 on December 5, 2024. This update includes regular bug fixes and exciting new features for Windows, macOS, and Linux. Whether you’re an amateur or professional astronomer, KStars continues to make sky exploration more accessible. Let’s dive into the highlights of this release.
Key Features in KStars v3.7.4
1. Imaging Planner: Easier Imaging Planning
Developed by Hy Murveit, the Imaging Planner is a sophisticated tool for choosing celestial objects to image. Key functionalities include:
- Downloading recommended object catalogs or creating custom catalogs.
- Determining the best time to capture images based on location, altitude, moon separation, and more.
- Filtering and sorting objects by visibility duration, peak altitude, distance from the moon, and object type.
This tool also provides small object images, sky map locations, and links to external resources. Although it doesn’t directly control imaging devices, it is a valuable tool for planning.
2. SIMBAD Integration with FITSViewer
A new experimental feature by John Evans brings SIMBAD data integration to FITSViewer. Users can:
- Highlight celestial objects in a selected area and view them in a table.
- Filter objects by type and access detailed information via SIMBAD/CDS or NED websites.
To use this feature, ensure your image has WCS enabled and plate-solved within FITSViewer. An internet connection is required.
3. New Contrast-Based Focusing Algorithm
John Evans also introduced four additional focus measures, enhancing solar and planetary imaging capabilities:
- StdDev: Measures pixel standard deviation for focusing.
- Contrast-based measures:
- Sobel, Laplacian, and Canny, ideal for textured objects like planets or the Moon.
These algorithms work on the entire image or selected regions but require the installation of the OpenCV library.
Author’s Opinion
As a KStars user, version v3.7.4 represents a major improvement. Features like Imaging Planner simplify the imaging process, while SIMBAD integration enhances exploration. However, the technical complexity of OpenCV setup might be a barrier for less tech-savvy users.
FAQ about KStars v3.7.4
1. What is the Imaging Planner in KStars v3.7.4?
The Imaging Planner helps users plan celestial object imaging by suggesting optimal times and allowing catalog downloads.
2. How does the SIMBAD integration in FITSViewer work?
With WCS-enabled images, users can select areas of interest and view detailed object data from the SIMBAD database.
3. Are the new focusing algorithms available out-of-the-box?
No, they require OpenCV installation and manual software rebuilding.
