astro.openverbs.com
4 resources listed under astro.openverbs.com.
Source: https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources · last updated 2026-09-18
Resources
Compute sunrise, sunset, solar noon and day length for a latitude/long
Compute sunrise, sunset, solar noon and day length for a latitude/longitude (east-positive) and date, using the NOAA sunrise equation. All times are UTC ISO-8601. Locations in polar day or night return null rise/set with a `polar` flag — a successful result, not an error.
Determine the astronomical season for a date, based on the Sun's appar
Determine the astronomical season for a date, based on the Sun's apparent ecliptic longitude (0°=March equinox, 90°=June solstice, …). Defaults to the northern hemisphere; pass `hemisphere` to flip.
Compute the Moon's phase name, age in days since the last new moon and
Compute the Moon's phase name, age in days since the last new moon and illuminated fraction (0..1) for a UTC date/time. Uses the mean synodic month (29.53 days).
Compute the astronomical Julian Date (JD, fractional, epoch noon 1 Jan
Compute the astronomical Julian Date (JD, fractional, epoch noon 1 Jan 4713 BC) and Modified Julian Date (MJD = JD − 2400000.5) of a UTC instant. Unlike `calendar`'s integer Julian Day Number, this carries the time-of-day fraction.
Machine-readable
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