astro_revolution 116 date/lib/astro.c sidtim0 = astro_revolution((180.0 + 356.0470 + 282.9404) + (0.9856002585 + 4.70935E-5) * d); astro_revolution 139 date/lib/astro.c M = astro_revolution(356.0470 + 0.9856002585 * d); astro_revolution 241 date/lib/astro.c sidtime = astro_revolution(astro_GMST0(d) + 180.0 + lon);