Stage 7 · field card

Field card

Corrections

Tray (inland)

1. Reading
2. −
3. IE
4. ÷ 2
5. − Refr.T6
6. =
7. Ho

Sea horizon (coast)

1. Reading
2. −
3. IE
4. −
5. DipT7
6. −
7. Refr.T6
8. =
9. Ho

Formulas

Night checklist

1. Time is UTC, to the second. Norway is UTC+2 until 25 Oct 2026, UTC+1 until 28 Mar 2027, then UTC+2 again.
2. Index error measured outside, after 20 minutes in the cold.
3. Oil still, sheltered, 20 m from the dogs.
4. Jupiter or Mars first, then stars from one row of T8.
5. Write down the temperature, then the sights: 3–5 per star.

The client session (20–30 min)

1. 1 · Find northBig Dipper → Polaris
2. →
3. 2 · Meet the sextanttwo images of one star
4. →
5. 3 · Measurestar pair or Polaris
6. →
7. 4 · Calculatein the cabin, open the GPS

Worksheet

Print this page, or copy the grid into your notebook. Use pencil: ink freezes.