moon-sighting/.github/wiki/api/variables/YALLOP_THRESHOLDS.md

moon-sighting v1.1.1

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moon-sighting / YALLOP_THRESHOLDS

Variable: YALLOP_THRESHOLDS

const YALLOP_THRESHOLDS: object

Defined in: types.ts:155

Published q thresholds (Yallop 1997, NAO TN 69): A: q > +0.216 — Easily visible to the naked eye B: q > -0.014 — Visible under perfect conditions C: q > -0.160 — May need optical aid to find; visible to naked eye D: q > -0.232 — Optical aid needed; will not be visible to naked eye E: q > -0.293 — Not visible even with telescope F: q <= -0.293 — Below Danjon limit (Moon too close to Sun)

Type Declaration

A

readonly A: 0.216 = 0.216

B

readonly B: -0.014 = -0.014

C

readonly C: -0.16 = -0.16

D

readonly D: -0.232 = -0.232

E

readonly E: -0.293 = -0.293