Skip to content

1753 PSR B1620-26 b, nicknamed “Methuselah” Traditional Cache

Hidden : 6/22/2017
Difficulty:
1.5 out of 5
Terrain:
2 out of 5

Size: Size:   micro (micro)

Join now to view geocache location details. It's free!

Watch

How Geocaching Works

Please note Use of geocaching.com services is subject to the terms and conditions in our disclaimer.

Geocache Description:

PSR B1620-26 b, nicknamed “Methuselah,” is one of the oldest known planets in the universe — a gas‑giant exoplanet about 12.7 billion years old, orbiting a pulsar/white dwarf binary system in the globular cluster Messier 4. Its mass is about 2.5 greater than Jupiter, and it takes about 100 years to complete one rotation around its twin sun system.

But it doesn't just orbit around one sun - it orbits around two of them! It can orbit two stars because those two stars orbit each other so closely, functioning like one combined gravitational object. Since the planet is very far away from both, the planet feels their combined gravity and moves in a stable, wide orbit around both. This makes PSR B1620‑26 b the first confirmed circumbinary planet — it orbits around the entire binary system, not around each star separately.

Placed along the Ice Age National Scenic Trail, this cache was initially placed as part of the 2017 West Bend Cache Ba$h.

If you are participating in the $1000 Cache Ba$h contest, don't forget to stamp your card. Leave the stamp in the cache for the next finder (thanks!). The hiders appreciate you taking the time to replace the log in the provided baggie and to replace the cache as intended.

The Geocache notification form#2500-118 has been submitted to Northern Kettle Moraine State Forest Headquarters of the Wisconsin DNR and received approval for placement by Jason Quast. Geocaches placed on Wisconsin Department of Natural Resouce managed lands require permission by means of a notification form.

Placed by members of the

https://img.geocaching.com:443/059c2e70-6d59-453f-bb00-c0966360c3ba.jpg

Follow the WGA on social media:

Additional Hints (Decrypt)

Gur gerr vg jnf va unq orra pubccrq Qbja arj pbbeqf. A43*29.475' J88*12.187

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)