月食とは（ロングバージョン）
Why it's on BrighterTube
Editorial review · 85% confidencePicked from a mixed channel: 国立天文台 (NAOJ) (title sample: Mixes genuinely educational explainers, lectures, and technical teaching footage with promotional videos, event recaps, launch footage, and institutional marketing, so selection must be video by video.; 1 of 3 sampled transcripts read as real teaching); this title passed a strict title check.
What you'll learn
A 5-minute video from 国立天文台 (NAOJ): “月食とは（ロングバージョン）”.
Video by 国立天文台 (NAOJ), played through YouTube's embedded player.