# iau resolution b2 1997

drillable.com › aa-usno-navy-mil › easter › iau resolution b2 1997.
As of the index built 9 Sep 2026, 22:58 UTC · [cites, never asserts](/standing).
Source: The Date of Easter, by https://aa.usno.navy.mil.
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## Records (2)

By drillable.com ([llm-extract/1](/standing#methods)); scored precision 1.00, recall 0.38 on the harness's last sample of 39.

- **effective-date** = 1 January 1998 · [quote](/r/sha256:081a7a8d220a76b954bfc8e546d86d3928140fdda3e381a40c49f3fdbe74f233?trace&start=31534&end=31650) · [sha256:73c5b9d4b854bed1…](/r/sha256:73c5b9d4b854bed1bb40d204355e6d45096234efb554fe2c8e4026632bff17b5)
- **hipparcos-role** = primary realization of the ICRS at optical wavelengths · [quote](/r/sha256:081a7a8d220a76b954bfc8e546d86d3928140fdda3e381a40c49f3fdbe74f233?trace&start=31944&end=32036) · [sha256:79309adfc137ae43…](/r/sha256:79309adfc137ae43151d6d0d3d17f86457879fd48140a43f23ab8c9baf750dcf)

Everything here is a record by a named reader, arranged; where readers disagree, both are shown.
No reader has asserted a label for it; the title is its address.

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