Stellarium/stellarium
Nov 2024 – Oct 2025
12 Months active
Languages Used
C++CMakeiniYAMLLaTeXMarkdownPOPerl
Technical Skills
AstronomyBug FixBuild System ConfigurationC++CMakeCore Development
Alexander V. Wolf
PROFILE
Alexander V. Wolf
Alexey worked extensively on the Stellarium/stellarium repository, delivering robust features and fixes that enhanced astronomical data accuracy, user experience, and cross-platform reliability. He implemented catalog updates, UI improvements, and build system optimizations using C++, CMake, and Qt, addressing both user-facing and infrastructure challenges. His work included refining data curation for comets and novae, improving localization, and modernizing CI/CD pipelines for faster, more reliable releases. Alexey’s technical approach emphasized maintainability and performance, with careful attention to code organization, system integration, and hardware detection. The depth of his contributions ensured Stellarium remained accurate, efficient, and accessible across diverse environments.
Overall Statistics
Feature vs Bugs
64%Features
Repository Contributions
123Total
Bugs
30
Commits
123
Features
54
Lines of code
182,259
Activity Months12
Work History
October 2025
17 Commits • 7 Features
Oct 1, 2025October 2025 delivered significant catalog and localization improvements, visual rendering enhancements, data integrity fixes, and CI/CD modernization for Stellarium/stellarium. The work enhanced data accuracy for end users, broadened internationalization coverage, improved user experience, and streamlined deployments.
17 Commits • 7 Features
Oct 1, 2025October 2025 delivered significant catalog and localization improvements, visual rendering enhancements, data integrity fixes, and CI/CD modernization for Stellarium/stellarium. The work enhanced data accuracy for end users, broadened internationalization coverage, improved user experience, and streamlined deployments.
October 2025
September 2025
21 Commits • 12 Features
Sep 1, 20252025-09 Stellarium/stellarium — concise monthly summary focusing on key accomplishments, major fixes, and business impact. This month delivered several user-facing features, stability improvements, and infrastructure upgrades that improve reliability, data quality, and deployment simplicity. Highlights include the RTS object selection feature, time speed control, expanded almanac/comet discovery capabilities, OS-level infrastructure updates, and updated nova catalogs and user guide. CSS/UI stability fixes and glyph rendering improvements enhanced UI reliability across Qt 6.9+. The changes collectively reduce maintenance overhead and accelerate user workflows for researchers and enthusiasts.
September 2025
21 Commits • 12 Features
Sep 1, 20252025-09 Stellarium/stellarium — concise monthly summary focusing on key accomplishments, major fixes, and business impact. This month delivered several user-facing features, stability improvements, and infrastructure upgrades that improve reliability, data quality, and deployment simplicity. Highlights include the RTS object selection feature, time speed control, expanded almanac/comet discovery capabilities, OS-level infrastructure updates, and updated nova catalogs and user guide. CSS/UI stability fixes and glyph rendering improvements enhanced UI reliability across Qt 6.9+. The changes collectively reduce maintenance overhead and accelerate user workflows for researchers and enthusiasts.
August 2025
13 Commits • 3 Features
Aug 1, 2025In 2025-08, Stellarium/stellarium delivered cross-platform CI, build-speed, and hardware-detection enhancements that strengthen CI reliability, expand platform support, and accelerate development cycles. Key outcomes include: - CI infrastructure improvements for FreeBSD with Qt environments: added a Qt6-based FreeBSD/amd64 CI instance and streamlined Qt5 dependencies to improve reliability and coverage in CI. (commits ee9f97a80b5f56316ed066fef0138083f27efe84; 82f1d4aa950ce2204688e79191542dc62fcd1db1) - Build acceleration via ccache: introduced a CMake option to enable/disable ccache, reducing non-Windows build times and improving developer iteration speed. (commit d92e765c8e3fc113ab9615aa7182551df12d3305) - Hardware detection and system information reporting improvements across Linux and BSD: broadened architecture support (PowerPC, Elbrus2K, e2k, s390/s390x, MIPS, ARM/aarch64) and refined CPU/vendor/model parsing, with related log/readability enhancements and refactors. (multiple commits including 16f94f692271afc81f9c0f04e092b9eb359bef9c; d12d4c6ba35fee0beecc252aa764e92796a9602c; 887fd169a2e6cc73e9a46b23b11b6919f701c687; 66ca8f6b3213e0c6840eb731451b968fft73c85; baaf1c93d22872cc9d536d923176dcf2f52e5255; a9b70b520abc82bfac8fea6e4d7897c4270e5a78; c67219b4771781b3d8373c4235dd31befddf6810; 5e9f346fef3f0babd24d357d2d64fe582a11183c; b7deee44bb6ee69714d333bc2314b4c56426045b) Overall impact: faster build iterations, broader platform support, and more accurate system information reporting, enabling quicker validation of changes and better telemetry across Linux/FreeBSD environments. Demonstrated skills in CI engineering, cross-platform build optimization, and low-level hardware detection and logging.
13 Commits • 3 Features
Aug 1, 2025In 2025-08, Stellarium/stellarium delivered cross-platform CI, build-speed, and hardware-detection enhancements that strengthen CI reliability, expand platform support, and accelerate development cycles. Key outcomes include: - CI infrastructure improvements for FreeBSD with Qt environments: added a Qt6-based FreeBSD/amd64 CI instance and streamlined Qt5 dependencies to improve reliability and coverage in CI. (commits ee9f97a80b5f56316ed066fef0138083f27efe84; 82f1d4aa950ce2204688e79191542dc62fcd1db1) - Build acceleration via ccache: introduced a CMake option to enable/disable ccache, reducing non-Windows build times and improving developer iteration speed. (commit d92e765c8e3fc113ab9615aa7182551df12d3305) - Hardware detection and system information reporting improvements across Linux and BSD: broadened architecture support (PowerPC, Elbrus2K, e2k, s390/s390x, MIPS, ARM/aarch64) and refined CPU/vendor/model parsing, with related log/readability enhancements and refactors. (multiple commits including 16f94f692271afc81f9c0f04e092b9eb359bef9c; d12d4c6ba35fee0beecc252aa764e92796a9602c; 887fd169a2e6cc73e9a46b23b11b6919f701c687; 66ca8f6b3213e0c6840eb731451b968fft73c85; baaf1c93d22872cc9d536d923176dcf2f52e5255; a9b70b520abc82bfac8fea6e4d7897c4270e5a78; c67219b4771781b3d8373c4235dd31befddf6810; 5e9f346fef3f0babd24d357d2d64fe582a11183c; b7deee44bb6ee69714d333bc2314b4c56426045b) Overall impact: faster build iterations, broader platform support, and more accurate system information reporting, enabling quicker validation of changes and better telemetry across Linux/FreeBSD environments. Demonstrated skills in CI engineering, cross-platform build optimization, and low-level hardware detection and logging.
August 2025
July 2025
7 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for Stellarium/stellarium focusing on delivering expanded astronomical data coverage, catalog refinements, and CI workflow improvements that enhance data quality and release velocity.
July 2025
7 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for Stellarium/stellarium focusing on delivering expanded astronomical data coverage, catalog refinements, and CI workflow improvements that enhance data quality and release velocity.
June 2025
7 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for Stellarium/stellarium focused on delivering user-experience improvements, build/install stability, and enhanced observability. Delivered a configurable option to automatically close the search dialog after selecting a result, improving UI flow and user efficiency. Strengthened build and deployment reliability by fixing Windows registry file associations for .ssc under HKLM, correcting CI plugin disable flags, and consolidating Satellites plugin dependencies in CMake for clarity and maintainability. Improved system observability and diagnostics with centralized hardware-aware logging, filtered and accurate system information reporting, and clarified OpenGL/Mesa handling to ensure cross-platform reliability.
7 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for Stellarium/stellarium focused on delivering user-experience improvements, build/install stability, and enhanced observability. Delivered a configurable option to automatically close the search dialog after selecting a result, improving UI flow and user efficiency. Strengthened build and deployment reliability by fixing Windows registry file associations for .ssc under HKLM, correcting CI plugin disable flags, and consolidating Satellites plugin dependencies in CMake for clarity and maintainability. Improved system observability and diagnostics with centralized hardware-aware logging, filtered and accurate system information reporting, and clarified OpenGL/Mesa handling to ensure cross-platform reliability.
June 2025
May 2025
5 Commits • 2 Features
May 1, 2025Monthly Summary for 2025-05 – Stellarium/stellarium Overview: Focused on data accuracy, user experience, and installer reliability. Delivered updates to comet discovery data, improved ephemeris handling after configuration changes, and enhanced UX during list editing, while refining usability and installation workflow. All changes are traceable to commits and aligned with product goals for data integrity, performance, and ease of use.
May 2025
5 Commits • 2 Features
May 1, 2025Monthly Summary for 2025-05 – Stellarium/stellarium Overview: Focused on data accuracy, user experience, and installer reliability. Delivered updates to comet discovery data, improved ephemeris handling after configuration changes, and enhanced UX during list editing, while refining usability and installation workflow. All changes are traceable to commits and aligned with product goals for data integrity, performance, and ease of use.
April 2025
12 Commits • 9 Features
Apr 1, 2025April 2025 monthly summary for Stellarium/stellarium focusing on delivering measurable business value and technical excellence. Key UI, data, and tooling improvements were completed, enhancing user experience, data richness, and build reliability. Highlights include a new Parallax Data Display in the Web UI, more stable CI/CD coverage reporting with Coveralls, expanded comet discovery data, and improved installer/build system compatibility for Inno Setup 6. These efforts were complemented by UI/UX clarity improvements, performance optimizations, and code hygiene activities, driving maintainability and faster release cycles.
12 Commits • 9 Features
Apr 1, 2025April 2025 monthly summary for Stellarium/stellarium focusing on delivering measurable business value and technical excellence. Key UI, data, and tooling improvements were completed, enhancing user experience, data richness, and build reliability. Highlights include a new Parallax Data Display in the Web UI, more stable CI/CD coverage reporting with Coveralls, expanded comet discovery data, and improved installer/build system compatibility for Inno Setup 6. These efforts were complemented by UI/UX clarity improvements, performance optimizations, and code hygiene activities, driving maintainability and faster release cycles.
April 2025
March 2025
11 Commits • 3 Features
Mar 1, 2025Monthly summary for Stellarium/stellarium - 2025-03 focusing on delivered features, fixed bugs, impact, and technical skills demonstrated. Key features delivered: - Double Star Designation Enhancements: Added short designations and numerical identifiers for double stars to improve searchability and referencing in the star catalog. (Commit 126299f16170d9b511b6843c7ce5ff1aaf82adf1) - Sky Culture terminology updates: Replaced legacy 'Starlore' terminology with 'Sky Culture' across UI, docs, resources, and assets to ensure consistent, user-facing language. (Commits: fcc38a32dd5aae5338cd4a61408416a28ccf9ab0; 2ea48d9d05b0503e9cdea2107549cb6562dd6ec6; aea3f2fd31cbb69db45f69857c4734616084c4a7; 378c4762d151db7e459cf86fa7c1bf381a7e1410) - Granular time duration steps for Ephemeris and Eclipses (AstroCalc): Introduced an enum for time duration steps and adjusted minimum duration to provide more granular control in time selections for Ephemeris and Eclipses tools. (Commit 5fa9732c742ae1eecb83f3e9cca3fa67dca7c15f) Major bugs fixed: - Aberration-triggered ephemeris marker accuracy: Fixed aberration effect handling to ensure ephemeris generation is correctly triggered when aberration-related settings change, improving visual accuracy in ephemeris view. (Commit e50451ad477c34d573b802f940c54f59cd0888ac) - Epoch calculation fix for Chinese Medieval calendar: Correct epoch calculations for the Chinese Medieval calendar boundaries to ensure historical dates are accurate in Stellarium. (Commit db4f193123e769ae1e1aeb46d8bb3ab7236e3732) - Packaging ignore rule fix for YAML files: Escape YAML file rule in packaging ignore rules to prevent unintended exclusion of .yml files during packaging. (Commit a0df7522e78d0b773a5fa9c8d86556b0123d06d5) Overall impact and accomplishments: - Improved searchability and user reference accuracy for double stars, leading to faster target identification and catalog navigation. - Consistent, user-friendly terminology reduces cognitive load and aligns UI/docs with common astronomy vernacular. - More precise ephemeris and eclipse timing enhancements improve visualization fidelity for observers and researchers. - Build and packaging stability improved through tooling updates, enhancing cross-platform consistency and deployment reliability. Technologies/skills demonstrated: - Version control discipline with small, focused commits; descriptive messages; and traceability to features/bugs. - Localization and documentation localization effort; UI/Docs alignment for Sky Culture terminology. - Tooling and build system evolution (CMake/CPM compatibility) impacting developer experience and CI stability. - Domain-specific modeling for AstroCalc time granularity and ephemeris/eclipse utilities. Business value: - Faster discovery and referencing of double stars improves user productivity and catalog reliability. - Accurate ephemeris visuals support better planning for observations and research workflows. - Consistent terminology reduces onboarding time for new users and external collaborators. - Stabilized build and packaging processes reduce maintenance time and deployment risk.
March 2025
11 Commits • 3 Features
Mar 1, 2025Monthly summary for Stellarium/stellarium - 2025-03 focusing on delivered features, fixed bugs, impact, and technical skills demonstrated. Key features delivered: - Double Star Designation Enhancements: Added short designations and numerical identifiers for double stars to improve searchability and referencing in the star catalog. (Commit 126299f16170d9b511b6843c7ce5ff1aaf82adf1) - Sky Culture terminology updates: Replaced legacy 'Starlore' terminology with 'Sky Culture' across UI, docs, resources, and assets to ensure consistent, user-facing language. (Commits: fcc38a32dd5aae5338cd4a61408416a28ccf9ab0; 2ea48d9d05b0503e9cdea2107549cb6562dd6ec6; aea3f2fd31cbb69db45f69857c4734616084c4a7; 378c4762d151db7e459cf86fa7c1bf381a7e1410) - Granular time duration steps for Ephemeris and Eclipses (AstroCalc): Introduced an enum for time duration steps and adjusted minimum duration to provide more granular control in time selections for Ephemeris and Eclipses tools. (Commit 5fa9732c742ae1eecb83f3e9cca3fa67dca7c15f) Major bugs fixed: - Aberration-triggered ephemeris marker accuracy: Fixed aberration effect handling to ensure ephemeris generation is correctly triggered when aberration-related settings change, improving visual accuracy in ephemeris view. (Commit e50451ad477c34d573b802f940c54f59cd0888ac) - Epoch calculation fix for Chinese Medieval calendar: Correct epoch calculations for the Chinese Medieval calendar boundaries to ensure historical dates are accurate in Stellarium. (Commit db4f193123e769ae1e1aeb46d8bb3ab7236e3732) - Packaging ignore rule fix for YAML files: Escape YAML file rule in packaging ignore rules to prevent unintended exclusion of .yml files during packaging. (Commit a0df7522e78d0b773a5fa9c8d86556b0123d06d5) Overall impact and accomplishments: - Improved searchability and user reference accuracy for double stars, leading to faster target identification and catalog navigation. - Consistent, user-friendly terminology reduces cognitive load and aligns UI/docs with common astronomy vernacular. - More precise ephemeris and eclipse timing enhancements improve visualization fidelity for observers and researchers. - Build and packaging stability improved through tooling updates, enhancing cross-platform consistency and deployment reliability. Technologies/skills demonstrated: - Version control discipline with small, focused commits; descriptive messages; and traceability to features/bugs. - Localization and documentation localization effort; UI/Docs alignment for Sky Culture terminology. - Tooling and build system evolution (CMake/CPM compatibility) impacting developer experience and CI stability. - Domain-specific modeling for AstroCalc time granularity and ephemeris/eclipse utilities. Business value: - Faster discovery and referencing of double stars improves user productivity and catalog reliability. - Accurate ephemeris visuals support better planning for observations and research workflows. - Consistent terminology reduces onboarding time for new users and external collaborators. - Stabilized build and packaging processes reduce maintenance time and deployment risk.
February 2025
15 Commits • 7 Features
Feb 1, 2025February 2025 was a focused sprint delivering cross-platform usability improvements, packaging stability, and performance enhancements for Stellarium/stellarium. The team strengthened cross-platform input handling, modernized build/tooling, and workflow conveniences, while continuing to improve localization and data consistency.
15 Commits • 7 Features
Feb 1, 2025February 2025 was a focused sprint delivering cross-platform usability improvements, packaging stability, and performance enhancements for Stellarium/stellarium. The team strengthened cross-platform input handling, modernized build/tooling, and workflow conveniences, while continuing to improve localization and data consistency.
February 2025
January 2025
5 Commits • 2 Features
Jan 1, 20252025-01 Monthly Summary for Stellarium/stellarium: Focused on stabilizing CI/CD and packaging workflows to improve build reliability, reproducibility, and release velocity across Qt/MSVC configurations and AppImage targets. Delivered two major features: CI/CD/Build Environment Stabilization and AppImage Packaging Base OS Alignment. Addressed build-time inconsistencies, updated tooling references, and fixed host path resolution to reduce flaky builds. Demonstrated strong cross-platform skills, DevOps discipline, and packaging stability that enable faster, safer releases with higher confidence in cross-platform deployments.
January 2025
5 Commits • 2 Features
Jan 1, 20252025-01 Monthly Summary for Stellarium/stellarium: Focused on stabilizing CI/CD and packaging workflows to improve build reliability, reproducibility, and release velocity across Qt/MSVC configurations and AppImage targets. Delivered two major features: CI/CD/Build Environment Stabilization and AppImage Packaging Base OS Alignment. Addressed build-time inconsistencies, updated tooling references, and fixed host path resolution to reduce flaky builds. Demonstrated strong cross-platform skills, DevOps discipline, and packaging stability that enable faster, safer releases with higher confidence in cross-platform deployments.
December 2024
3 Commits • 2 Features
Dec 1, 20242024-12 Monthly Summary for Stellarium/stellarium. Focused on maintenance workflow improvements, data accuracy enhancements for celestial bodies, and UI reliability for Deep Sky Survey (DSS). Delivered three items with direct commit references, enabling faster maintainer onboarding, more accurate celestial data, and a more stable user experience.
3 Commits • 2 Features
Dec 1, 20242024-12 Monthly Summary for Stellarium/stellarium. Focused on maintenance workflow improvements, data accuracy enhancements for celestial bodies, and UI reliability for Deep Sky Survey (DSS). Delivered three items with direct commit references, enabling faster maintainer onboarding, more accurate celestial data, and a more stable user experience.
December 2024
November 2024
7 Commits • 4 Features
Nov 1, 2024Month 2024-11 for Stellarium/stellarium focused on performance improvements, build cleanliness, broader OS compatibility, and improved user control with reliable behavior. Delivered key features across rendering, hardware control integration, and satellites/pulsars plugins, along with targeted bug fixes to increase reliability and correctness.
November 2024
7 Commits • 4 Features
Nov 1, 2024Month 2024-11 for Stellarium/stellarium focused on performance improvements, build cleanliness, broader OS compatibility, and improved user control with reliable behavior. Delivered key features across rendering, hardware control integration, and satellites/pulsars plugins, along with targeted bug fixes to increase reliability and correctness.
Activity
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Quality Metrics
Correctness91.0%
Maintainability91.6%
Architecture87.0%
Performance86.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++CMakeCSSDataFABHTMLINIJavaScriptLaTeXMarkdown
Technical Skills
AstronomyAstronomy DataAstronomy Data ManagementAstronomy SimulationAstronomy SoftwareAstronomy Software DevelopmentBSD SystemsBug FixBug FixingBuild ConfigurationBuild SystemBuild System ConfigurationBuild SystemsC++C++ Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline