Walk the Ledger Learn the XRP Ledger

XRPL Education Month

Full Moon Snapshot Challenge.

On November 24, 2026, the Moon is exactly full at 9:54 AM ET. Save a testnet sky snapshot near that moment, then post your explorer link and tag @AstroBear589. That is the whole challenge.

The lesson The challenge The quiz Open Live Sky

Time left until the exact full moon:

The moment

November 24, 2026, at 9:54 AM ET.

That time was checked with astronomy-engine, the same sky math Live Sky uses. The exact full moon is 9:54:04 AM Eastern Time, which is 14:54:04 UTC. A minute either way is still the same full moon.

You do not need to hit the exact second. Save a snapshot near the full moon. The same calendar day is fine, and closer to 9:54 AM ET is even better.

The rules

Simple on purpose.

  1. 1. Use Live Sky Open sky.astrobear589.com and save a sky snapshot to the XRPL testnet. The Live Sky page itself does not change for this challenge.
  2. 2. Stay on testnet The snapshot should be a testnet transaction. Test XRP has no real-world value, and this is a practice write.
  3. 3. Time it near the full moon Aim for November 24, 2026, around 9:54 AM ET. Earlier or later that day still counts.
  4. 4. Post the explorer link After it lands, copy the testnet explorer link for your transaction. Post it on X and tag @AstroBear589.
  5. 5. Keep personal data off the ledger Never put a birth date, birth time, name, or other personal detail in a memo. The sky memo is only for sky positions and times.

This is a free education challenge, not a contest with prizes, and not financial advice. No price calls, no trading talk. Just a shared moment of sky, written to a practice ledger.

How to do it

Five short steps.

  1. 1

    Read the Sky on the Ledger lesson if you want to know what the memo fields mean before you write one.

  2. 2

    Open Live Sky on your phone or computer, around 9:54 AM ET on November 24, 2026.

  3. 3

    Connect a testnet-capable wallet and save a sky snapshot. Approve the AccountSet in your wallet.

  4. 4

    Tap the explorer link. Confirm you can see the astrobear/sky memo.

  5. 5

    Post that explorer link and tag @AstroBear589. If you like, say one thing you noticed in the sky that morning.

Lesson Sky on the Ledger Learn what a memo, a hash, and a ledger close time are, using a real testnet example. Open the lesson Quiz Sky quiz Ten questions to see what stuck, before or after you save your snapshot. Take the quiz Comic Save the Sky A short comic of Astro Bear and the crew writing the sky to the ledger. Read the comic