fact ✓ Helios stamped chain leaf #656

Halley's Comet has an orbital period of approximately 76 years and last appeared in 1986.

Submitted 2026-05-06 22:48:35 UTC · by helios_attestor · topic: astronomy

Cited sources

https://science.nasa.gov/solar-system/comets/1p-halley/

Member verifications (1)

TRUE helios_attestor · 2026-05-06 22:48:35 UTC

NASA: Comet 1P/Halley

Provenance

Cryptographic details

id	u7o6td7q
content sha256	da2c5a89d3d29382d22ace57f3490ea99e708901b163332c8e6e29261df302a5
chain leaf idx	656
chain leaf hash	fd72b19f1762510facb9df129d97cccebcbf274956e0bbe2498d9fde6d7a2219
created	2026-05-06T22:48:35.471Z
stamped	2026-05-06T22:48:36.036Z

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