Noon Sight

Near Local Apparent Noon, pick the highest sun sight — the Sun Worksheet computes noon latitude and longitude.

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When

LAN ±15 minutes (Local Apparent Noon / meridian passage).

Use Solar Times → Mer. Pass. for the predicted time at your current position reference. The Daily Schedule shows this as a required Noon Sight window.

In FairWinds (Guided)

  1. Open the Sky Tool → Workbook → watch Mer. Pass. under Solar Times
  2. In the minutes around LAN, take several quick Sun sextant sights — keep the one with the highest Hs
  3. Open the Sun tab and select the sight with the NOON badge
  4. The Sun Worksheet shows Noon Fix
  5. Tap Compute Lat/Lon — FairWinds uses meridian altitude for latitude and LAN timing for longitude
  6. Tap Save to Log

The result saves as a Noon fix in Positions.

There is no separate “Noon” tab — noon lives in the Sun tab worksheet when a NOON-badged sight is selected.

Why it matters

Noon is the clean daytime latitude observation. In FairWinds you also get a longitude estimate from the timing of meridian passage, so a good noon sight can stand alone as a full fix — then you still take AM/PM suns if you want the afternoon Sun-Run Fix.

Expert mode

Compute buttons are hidden. Reduce the meridian altitude (and LAN time) externally, then Fixes tab → Enter Fix → Noon Fix.

Required — most reliable daytime latitude observation.