#angular_diameter on Solar System bodies#207
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## 0.8.0 - 2025-09-01 _If you are upgrading: please see [UPGRADING.md]._ ### Bug fixes * Fix UPGRADING documentation ([#178]) * Fix possible division by zero in RTS ([#185]) ### Features * Introduce performance benchmark ([#183]) * Cache positions in RTS calculator ([#182]) * Internal global LRU cache ([#186]) * Global configuration ([#187]) * Compute the constellation a body is in ([#199]) * Add `#phase_angle` and `#illuminated_fraction` to planets ([#200]) * Apparent magnitude ([#201]) * Add #events_between to TwilightCalculator with better accuracy ([#204]) * `#angular_diameter` on Solar System bodies ([#207]) * Fix constellation boundaries near 24h right ascension ([#209]) ### Improvements * Bump standard from 1.49.0 to 1.50.0 by @dependabot ([#177]) * Bump ephem from 0.3.0 to 0.4.1 by @dependabot ([#181], [#191]) * Bump irb from 1.14.3 to 1.15.2 by @dependabot ([#184]) * Bump rspec from 3.13.0 to 3.13.1 by @dependabot ([#188]) * Bump benchmark from 0.4.0 to 0.4.1 by @dependabot ([#189]) * Bump rake from 13.2.1 to 13.3.0 by @dependabot ([#190]) * Bump matrix from 0.4.2 to 0.4.3 by @dependabot ([#193]) * Update rubyzip requirement from ~> 2.3 to ~> 3.0 by @dependabot ([#194]) * Bump rubyzip from 3.0.0 to 3.0.2 by @dependabot ([#202], [#206]) * Exclude benchmarks from release ([#196]) * `Epoch` refactoring into `JulianDate` ([#197]) * Support Ruby 3.4.4 ([#198]) * Bump actions/checkout from 4 to 5 ([#203]) * Internal documentation ([#205]) ### Backward-incompatible changes * `Epoch` refactoring into `JulianDate` ([#197]) * `#angular_diameter` on Solar System bodies ([#207]) * Rename "epoch" ([#208]) ### Closed issues * Consider adding typical usage/deployment info ([#179]) * Performance degradation in v0.7 ([#180]) **Full Changelog**: v0.7.0...v0.8.0 [#177]: #177 [#178]: #178 [#179]: #179 [#180]: #180 [#181]: #181 [#182]: #182 [#183]: #183 [#184]: #184 [#185]: #185 [#186]: #186 [#187]: #187 [#188]: #188 [#189]: #189 [#190]: #190 [#191]: #191 [#193]: #193 [#194]: #194 [#196]: #196 [#197]: #197 [#198]: #198 [#199]: #199 [#200]: #200 [#201]: #201 [#202]: #202 [#203]: #203 [#204]: #204 [#205]: #205 [#206]: #206 [#207]: #207 [#208]: #208 [#209]: #209 [UPGRADING.md]: https://github.com/rhannequin/astronoby/blob/main/UPGRADING.md
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Moves
#angular_diameterfrom thetopocentricposition to the Solar System body.This is meant to harmonise with other physical methods like
#apparent_magnitudeor#phase_anglewhich are also defined on the Solar System body and not on a particular reference frame.This slightly changes the value we previously got for the Moon, which proximity makes the angular diameter influenced by the parallax angle. But I believe this is fine, to the benefit of a more readable API. If someone wants the exact topocentric apparent angular diameter, the calculation by hand is really accessible.