File:Using sextant swing.gif

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Using_sextant_swing.gif ‎(787 × 393 pixels, dimension del file: 2,1 MB, typo MIME: image/gif, repetente, 28 photogrammas, 19 s)

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Summario

Description
English: Animation of the use of a marine sextant to measure the altitude of the sun
Español: Animación del uso de un sextante para medir el ángulo de altitud del sol.
Français : Animation montrant l'usage d'un sextant de marine pour mesurer la hauteur du soleil. Légende: (1) pointer le sextant sur l'horizon, (2) libérer le frein de la barre d'index, (3) Mener le soleil à l'horizon, (4) freiner la barre d'index, ajuster finement la lecture à l'aide de la molette. (5) basculer l'appareil pour vérifier l'alignement, (6) lire l'angle mesuré.
Deutsch: Animation, die den Gebrauch eines Sextanten zur Messung der Sonnenhöhe zeigt: (1) Ausrichten des Sextanten zum Horizont, (2) Schwenken des Indexspiegels, (3) Sonne und Horizont egalisieren, (4) Feinabstimmung (5) Schwenken zur Verifizierung der Einstellung, (6) Ablesen der Messung.
Português: Animação demonstrando o uso do sextante náutico na medição da altura do Sol acima do horizonte
Data
Origine Obra proprie
Autor Joaquim Alves Gaspar
Permission
(Reuso de iste file)
Io, titular del derecto de autor sur iste obra, declara de publicar lo sub le sequente licentia:
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attribution condivider equalmente
Iste file es disponibile sub le licentia Creative Commons Attribution-CompartiSimile 2.5 Generic.
Tu es libere:
  • de condivider – de copiar, distribuer e transmitter le obra
  • de remixar – de adaptar le obra
Sub le sequente conditiones:
  • attribution – Tu debe dar information appropriate sur le autor, fornir un ligamine al licentia, e indicar si modificationes ha essite apportate. Tu pote facer lo de qualcunque maniera rationabile, ma non in alcun modo que suggere que le licentiator approba te o tu uso del obra.
  • condivider equalmente – Si tu altera, transforma o disveloppa le material, tu debe distribuer tu contributiones sub un licentia identic o compatibile con le original.
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GIF genesis
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This diagram was created with CorelDRAW.

Explanation of frames (also see Image:Marine sextant.svg)

  1. - Point the sextant to the horizon in the direction of the Sun. The horizon is visible at left, through the glass, and also at right, reflected by the two mirrors. The index arm is at the zero position.
  2. - Press the clamp to release the index bar.
  3. - Rotate the index bar to bring the reflected image of the Sun to the horizon.
  4. - The lower limb of the Sun is now almost touching the horizon. Release the clamp and adjust the sun's position with the micrometer.
  5. - Swing the sextant to verify the sun's position (adjust if necessary).
  6. - Read the altitude at the arc scale and micrometer drum (about 40º 15').

Quality image

This image has been assessed using the Quality image guidelines and is considered a Quality image.

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object has role anglese: photographo
author name string anglese: Joaquim Alves Gaspar
URL anglese: https://commons.wikimedia.org/wiki/User:Alvesgaspar
Wikimedia username anglese: Alvesgaspar

copyright status anglese

copyrighted anglese

inception anglese

april 2007

Historia del file

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Data/HoraMiniaturaDimensionesUsatorCommento
actual22:00, 2 novembre 2007Miniatura pro le version de 22:00, 2 novembre 2007787 × 393 (2,1 MB)Alvesgaspar
18:45, 9 april 2007Miniatura pro le version de 18:45, 9 april 2007787 × 393 (2,1 MB)Alvesgaspar
18:32, 9 april 2007Miniatura pro le version de 18:32, 9 april 2007787 × 393 (2,1 MB)Alvesgaspar
23:02, 7 april 2007Miniatura pro le version de 23:02, 7 april 2007787 × 393 (2,1 MB)Alvesgaspar
17:27, 7 april 2007Miniatura pro le version de 17:27, 7 april 2007787 × 393 (2,1 MB)Alvesgaspar
17:08, 7 april 2007Miniatura pro le version de 17:08, 7 april 2007787 × 393 (2,1 MB)Alvesgaspar
09:12, 5 april 2007Miniatura pro le version de 09:12, 5 april 2007787 × 393 (2,05 MB)Alvesgaspar
20:28, 4 april 2007Miniatura pro le version de 20:28, 4 april 2007787 × 393 (2,08 MB)Alvesgaspar
22:32, 3 april 2007Miniatura pro le version de 22:32, 3 april 2007787 × 393 (2,11 MB)Alvesgaspar{{Information |Description=Animation of the use of a marine sextant to measure the altitude of the sun |Source=own work |Date=April 2007 |Author=Joaquim Alves Gaspar |Permission=below |other_versions=Image:Using_sextant_swing.gif

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