Ryan Malloy
b0741c553b
Annual stellar aberration (~20 arcsec) added to all 6 existing _apparent() functions via classical first-order v/c projection (Ron & Vondrak). Earth velocity sourced from VSOP87 xyz[3..5] (analytic) or DE numerical differentiation. New functions (106 -> 114): - eq_angular_distance(): Vincenty formula, stable at 0 and 180 deg - eq_within_cone(): cosine shortcut for fast cone-search predicate - <-> operator on equatorial type - 6 DE apparent variants with VSOP87 fallback: planet/sun/moon_observe_apparent_de(), planet/moon_equatorial_apparent_de(), small_body_observe_apparent_de() Stellar parallax now functional in star_observe_pm() and star_equatorial_pm() — Green (1985) Eq. 11.3 displacement using Earth heliocentric position from VSOP87. All 19 regression suites pass (18 existing + new aberration suite).
5 lines
173 B
Plaintext
5 lines
173 B
Plaintext
comment = 'A database orrery — celestial mechanics types and functions for PostgreSQL'
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default_version = '0.10.0'
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module_pathname = '$libdir/pg_orrery'
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relocatable = true
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