Sextant Geocoin JohnnyM.'s Sextant Geocoin

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Owner:
JohnnyM. Send Message to Owner Message this owner
Released:
Sunday, November 22, 2009
Origin:
Hlavní město Praha, Czechia
Recently Spotted:
In the hands of the owner.

This is collectible.

Use TB35QJF to reference this item.

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Current Goal

To be in small collection of my owner.
I want to travel from event to event with my owner.
You can see me in the hands of JohnnyM. mostly stays in Prague (Czech Republic).

About This Item

JohnnyM.'s Sextant Geocoin

The octant and sextant replaced most of the earlier navigation tools in the late 1700s such as the back staff, mariner's astrolabe, and quadrant. The octant is 1/8 of a circle and a sextant is 1/6 of a circle. The sextant allowed for more range in the degree scale over the octant.

The biggest improvement the sextant made over all other sighting tools (except the octant) is its double reflecting mirrors which eliminated the ocular parallax other tools caused. It also allowed for greater accuracy by having finer degree adjustments.

The sextant design is so universal and accurate that it is still used on ships today as a backup instrument to electrical navigation devices. Even aircraft used these as backups if their avionic systems failed.

Gallery Images related to JohnnyM.'s Sextant Geocoin

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Tracking History () View Map

Discovered It 7/16/2022 H.E.R.A. discovered it   Visit Log

beim GIGA in entdeckt...
Discovered It 7/15/2022 DATO1 discovered it   Visit Log

Vielen Dank fürs Zeigen!
Discovered It 7/14/2022 chose80 discovered it   Visit Log

Danke für das Discovern. Dich habe ich an einem Event in Prag gesehen. Danke
Discovered It 7/13/2022 Yosx discovered it   Visit Log

Découvert sur le Giga de pragues . . . .
Discovered It 7/10/2022 casik4 discovered it   Visit Log

Discovered at the GPS Maze Prague....👍
Discovered It 7/4/2022 GauthierPellok discovered it   Visit Log

Vu dans la vidéo du Maze Europe 2015 sur YouTube. Merci pour le partage ! 🧭
Discovered It 7/4/2022 KleinDomie discovered it   Visit Log

Heute schaffe ich es endlich mal diverse Coins/Tbs zu discovern.
Wo hab ich die alle nur gesehen...also beim GIGA in Prag, beim MEGA in Klingenthal und beim MEGAin der Oberlausitz.
Ach ja, in Kroatien und so waren wir auch noch im Urlaub und haben da einiges in Logbüchern gefunden.
THX to all Owners for sharing!
Discovered It 7/4/2022 bregtje1988 discovered it   Visit Log

Tijdens het cachen deze trackable mogen discoveren.
Při ukládání do mezipaměti může tento sledovatelný objevit.
While caching this trackable may discover.
Discovered It 7/4/2022 nwpvr discovered it   Visit Log

Discovered at the GPS Maze Prague.
Discovered It 7/2/2022 viko76 discovered it   Visit Log

Danke fürs zeigen

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