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Event Cache

Vernal Equilux 2018

A cache by TeamDAAK Send Message to Owner Message this owner
Hidden : Saturday, March 17, 2018
Difficulty:
1 out of 5
Terrain:
1 out of 5

Size: Size: other (other)

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Geocache Description:


Zios Pizzeria
12997 W Center Rd, Omaha, NE 68144


Spring is just ahead, but come now to celebrate the 12 hours of daylight and 12 hours of darkness, a.k.a., Equilux, taken from this table March Omaha

The event will start at 1:32 pm, exactly 6 hours after sunrise and 6 hours before sunset and we have the room until 2:30 pm.

The listed coords are for parking in the back.

Here are a few snippets of information taken from Dark Sky Diary

"the days on which the length of day and night are exactly equal, called the equilux, occur a few days before the spring equinox and a few days after the autumn equinox. This date will vary depending on where on Earth you are, and indeed equiluxes do not occur at all close to the equator, whereas the equinox is a fixed instant in time."

Have you ever wondered what twilight really is? Did you know that there are three different kinds of twilight?

"There are, in fact, three kinds of twilight.

Civil twilight is what most people mean when they talk about twilight. It starts in the morning when the centre of the Sun’s disk is 6 degrees below the horizon, and ends at sunrise. In the evening civil twilight stars at sunset and continues until the centre of the Sun’s disk is 6 degrees below the horizon. During civil twilights the sky is still bright enough that, in general, artificial illumination will not be needed when doing things outside. In reality though, most councils switch lights on a fixed time after sunset (say 30 minutes) and turn them off a fixed time before sunrise, rather than relying on the Sun’s angular distance below the horizon.

Nautical twilight is when the Sun’s disk is between 6 and 12 degrees below the horizon. During nautical twilight it is still possible to distinguish the sky from the distant horizon when at sea, thus allowing sailors to take measurements of bright stars against the horizon. Most of us would consider this “dark”, but it is still technicaly twilight.

Astronomical twilight is when the Sun’s disk is between 12 and 18 degrees below the horizon. During astromical twilight you’ll no longer be able to tell the sky from the distant horizon when at sea, but crucially for astronomers, there is still light in the sky. Not much – indeed most of us would say it’s properly night time at this point – but the faintest objects in the sky, such as nebulae and very dim stars, will only be visible after astronomical twilight ends. Also, if you intend to measure how dark the sky is using a Sky Quality Metre, say, it is important to wait till after astronomical twilight."


Also, you can watch this YouTube video: What is the Vernal Equinox

Additional Hints (Decrypt)

Ragre va gur onpx, cebprrq gb gur sebag, unat n evtug, naq jr'yy or va gur cnegl ebbz fgenvtug nurnq.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)



 

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16 Logged Visits

Archive 1     Will Attend 4     Attended 9     Temporarily Disable Listing 1     Publish Listing 1     

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Current Time:
Last Updated: on 4/16/2018 1:00:03 AM Pacific Daylight Time (8:00 AM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum

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