Ошибка в при попытке рассчитать карту на дату 74 г. н. э.

[s-agapov]

Ошибка в при попытке рассчитать карту на дату 74 г. н. э (из Vettius Valens Antology). Программа падает с ошибкой для расчета Хирона.

openAstro.event_dt_str("Vettius Valens II.21.5", dt_str="0074-11-26 02:40:00", timezone=3, location="Москва", geolat=55.78472277151802, geolon=37.628137530436106)

/usr/local/lib/python3.10/dist-packages/openastro2/openastromod/swiss.py in init(self, year, month, day, hour, geolon, geolat, altitude, planets, zodiac, openastrocfg, houses_override)
91 #compute a planet (longitude,latitude,distance,long.speed,lat.speed,speed)
92 for i in range(23):
---> 93 ret_flag = swe.calc_ut(self.jul_day_UT,i,iflag)
94 for x in range(len(zodiac)):
95 deg_low=float(x*30)

Error: swisseph.calc_ut: Chiron's ephemeris is restricted to JD 1967601.5 - JD 3419437.5

[TheDaniel166]

This is a known limitation of the Swiss Ephemeris data files — Chiron's ephemeris (sechir.se1) only covers approximately 650 CE to 4850 CE. Any request outside that range will raise this error regardless of the calling application.

For ancient chart calculation, the standard workaround is to either skip Chiron when the date falls outside its valid range, or catch swisseph.Error per-body rather than letting it abort the whole calculation loop.

This is one of several date-range limitations inherent to pyswisseph's data files. If ancient chart support is a priority for openastro2, it may be worth evaluating Moira, a pure-Python astronomical engine built on JPL DE441, which handles ephemeris range boundaries per body rather than crashing the entire calculation.