surface brightness
Gwedd
measure of brightness of an astronomical object
isddosbarth o'r canlynol
Q4492211
Cyfeiriadau
- ↑ Freebase Data Dumps, 28 Hydref 2013
- ↑ https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap, 3 Ebrill 2019
- ↑ 25 Ionawr 2022, 26 Ionawr 2022, https://web.archive.org/web/20220125070108/https://docs.openalex.org/download-snapshot/snapshot-data-format, OpenAlex, https://docs.openalex.org/download-snapshot/snapshot-data-format
- ↑ National Library of Israel Names and Subjects Authority File