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This introduces `Astronoby::Deflection`, responsible for correcting an astrometric position with the light deflection effect. When light comes close to a massive body while on its way to an observer, the light slightly bended due to relativistic effects. In theory, all massive objects of the Solar System should be accounted for light deflection. However, even the Sun itself has very little effect, which is why this algorithm ignores light deflection except for the Sun. This algorithm is heavily inspired by Skyfield's algorithm of the same effect.
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## 0.7.0 - 2025-05-12 _If you are upgrading: please see [UPGRADING.md]._ ### Bug fixes * Fix Moon monthly phase events calculation by @valeriy-sokoloff in ([#124]) ### Features * Add `Instant` value object ([#121]) * Introduce barycentric position of Solar System major bodies ([#127]) * Introduce Astrometric position for planets ([#129]) * Rename Barycentric into Geometric ([#130]) * Rename IRCF and remove module Position ([#131]) * Geometric and Astrometric reference frames with coordinates ([#132]) * Ecliptic coordinates for Geometric and Astrometric reference frames ([#134]) * Add Geometric and Astrometric positions for `Sun` and `Moon` ([#135]) * Implement new aberration correction ([#136]) * Precession matrix for 2006 P03 model ([#137]) * Introduce `MeanOfDate` reference frame ([#138]) * New nutation model ([#141]) * Light deflection correction ([#142]) * Introduce `Apparent` reference frame ([#143]) * Introduce `Topocentric` reference frame ([#145]) * Improve Vector integration with value objects ([#146]) * Handle refracted topocentric horizontal coordinates ([#147]) * Add `#angular_diameter` to apparent and topocentric reference frames ([#149]) * Introduce new calculator for rising, transit and setting times ([#148]) * Clean code after Ephem refactoring ([#152]) * Improve `RisingTransitSettingEventsCalculator` ([#155]) * Simplify `RisingTransitSettingEventsCalculator` ([#156]) * Lazy-load reference frames ([#157]) * Overall performance improvements ([#163]) * Add support for IMCCE INPOP by @JoelQ and @rhannequin ([#166]) * Update INPOP excerpt in spec data ([#167]) * Introduce a better rise/transit/set calculator ([#168]) * Drop `Astronoby::Observer#observe` ([#174]) ### Improvements * Bump standard from 1.42.1 to 1.49.0 by @dependabot ([#123], [#128], [#150], [#165]) * Bump rubyzip from 2.3.2 to 2.4.1 by @dependabot ([#120]) * Add more tests for Julian Date conversion ([#122]) * Upgrade main Ruby version and supported ones ([#125]) * Update email address and gem description ([#126]) * Increase precision of mean obliquity ([#133]) * Add supported Rubies ([#139]) * Set Ruby 3.4.2 as default version ([#140]) * Fix dependency secutiry patch ([#151]) * Improve HMS/DMS formats ([#153]) * Use excerpts ephemerides for specs of Sun and Moon ([#154]) * Add link to deprecated documentation ([#160]) * Default Ruby 3.4.3 and support recent rubies ([#169]) * Better Moon phases test coverage ([#172]) * Optimize Observer with GMST from Instant ([#173]) * Update README about documentation location ([#175]) * Add GitHub Actions permissions ([#176]) ### New Contributors * @valeriy-sokoloff made their first contribution in #124 * @JoelQ made their first contribution in #166 **Full Changelog**: v0.6.0...v0.7.0 [#120]: #120 [#121]: #121 [#122]: #122 [#123]: #123 [#124]: #124 [#125]: #125 [#126]: #126 [#127]: #127 [#128]: #128 [#129]: #129 [#130]: #130 [#131]: #131 [#132]: #132 [#133]: #133 [#134]: #134 [#135]: #135 [#136]: #136 [#137]: #137 [#138]: #138 [#139]: #139 [#140]: #140 [#141]: #141 [#142]: #142 [#143]: #143 [#145]: #145 [#146]: #146 [#147]: #147 [#148]: #148 [#149]: #149 [#150]: #150 [#151]: #151 [#152]: #152 [#153]: #153 [#154]: #154 [#155]: #155 [#156]: #156 [#157]: #157 [#160]: #160 [#163]: #163 [#165]: #165 [#166]: #166 [#167]: #167 [#168]: #168 [#169]: #169 [#172]: #172 [#173]: #173 [#174]: #174 [#175]: #175 [#176]: #176 [UPGRADING.md]: https://github.com/rhannequin/astronoby/blob/main/UPGRADING.md
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This introduces
Astronoby::Deflection, responsible for correcting an astrometric position with the light deflection effect.When light comes close to a massive body while on its way to an observer, the light slightly bended due to relativistic effects.
In theory, all massive objects of the Solar System should be accounted for light deflection. However, even the Sun itself has very little effect, which is why this algorithm ignores light deflection except for the Sun.
This algorithm is heavily inspired by Skyfield's algorithm of the same effect.