Expand description
Constellation identification from the IAU constellation boundaries.
Provenance: identification walks the Roman (1987, PASP 99, 695)
precomputed boundary table (ADC/CDS catalogue VI/42 — the Delporte 1930
IAU boundaries as declination-zone records at epoch B1875.0), generated
into constellation_data.rs by scripts/gen_constellation_table.py.
Inputs are precessed to B1875.0 with the crate’s IAU-1976 model — the same
“FK5 stands in for the original FK4 frame” approximation AstroPy’s
get_constellation makes; the difference is sub-arcsecond and can only
matter for coordinates within ~1″ of a boundary. Names follow the official
IAU list (including “Boötes”, “Chamaeleon”, “Ophiuchus”,
“Piscis Austrinus”).
Enums§
- Constellation
- One of the 88 IAU constellations.
Functions§
- constellation
- The constellation containing an equatorial coordinate.