Wikimedia Commons

File:Sextant, Pocket Compass, Telescope (e7de5507-1dd8-b71b-0bd2-1dc0f1efe10b).JPG

Original file (3,772 × 2,708 pixels, file size: 3.37 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents


Summary

edit
English: Sextant, Pocket Compass, Telescope
Photographer
English: NPS Photo
Title
English: Sextant, Pocket Compass, Telescope
Publisher
English: U.S. National Park Service
Description
English:

Sextant, pocket compass, and refracting telescope lay on a piece of leather.

A sextant was used to measure the angular distance between the moon and sun or a star, for determining longitude. The pocket compass was used to take bearings when it was impractical to use the circumferentor and when traveling on land. The refracting terrestrial telescope with an achromatic objective lens was used for daytime observations.

  • Keywords: navigation; william clark; compass; telescope; sextant; instruments; articles
Date Taken on 12 April 2017
Accession number
e7de5507-1dd8-b71b-0bd2-1dc0f1efe10b
Source
English: NPGallery
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
NPS Unit Code
InfoField
NPS

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current23:32, 15 May 2024Thumbnail for version as of 23:32, 15 May 20243,772 × 2,708 (3.37 MB)BMacZeroBot (talk | contribs)Batch upload (Commons:Batch uploading/NPGallery)

You cannot overwrite this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Sextant,_Pocket_Compass,_Telescope_(e7de5507-1dd8-b71b-0bd2-1dc0f1efe10b).JPG&oldid=934406629"