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23 lines
593 B
Markdown
23 lines
593 B
Markdown
[**moon-cycle v2.0.0**](../README.md)
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***
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[moon-cycle](../README.md) / MONTH\_ANCHOR
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# Variable: MONTH\_ANCHOR
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> `const` **MONTH\_ANCHOR**: `Date`
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Defined in: [types.ts:89](https://github.com/acamarata/moon-cycle/blob/208f7ffba1c1bce684a1b90ff94e52538d2632d3/src/types.ts#L89)
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Anchor date for the monthly cycle: the 2023-11-13 new moon (UTC).
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All synodic phase calculations measure elapsed time from this reference
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point. Confirmed against JPL Horizons ephemeris data.
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## Example
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```ts
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import { MONTH_ANCHOR } from 'moon-cycle';
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const ageMs = Date.now() - MONTH_ANCHOR.getTime();
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```
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