ἰσημερινὴ ὥρα

isēmerinē hōra
Greek · noun
variants ὥρα ἰσημερινή : hōra isēmerinē , ἰσημερ ὧρ : isēmer hōr
Edited by: Thomas Peeters
Last edited: 2025-02-26
Meanings
Literal translation
equinoctial hour
Categories
time interval
Related Lemmata 4 ›

1. equinoctial hour

1.a equinoctial hour time interval

(...) ἔστι δὲ ἡ μεγίστη νὺξ κατὰ τὸ ἐν Ῥόδῳ κλίμα ὡρῶν ἰσημερινῶν ιδʹ 𐅶.

‘(...) and the longest night corresponding with the clime in Rhodes contains 14½ equinoctial hours.’

— Geminus 1.12

Genre: astronomy Date: 1st century BCE

Geminus. 1975. Géminos, Introduction aux Phénomènes, ed. G. Aujac. Paris: Les Belles Lettres. 4

...] | ἰσημερ / ὧρ | μῆκ' | πλάτ' | ἀποσ / π'φέ' | [...

‘... | equinoctial hours | longitude | latitude | arc of distance away | ...’

— P. Oxy. LXI 4168 fr.1, R: 5-6

Genre: mathematical astronomy: parallax table Provenance: Oxyrhynchus Date: 4th century CE

Jones, A. (ed.), 1999. Astronomical papyri from Oxyrhynchus (P. Oxy. 4133-4300a), Volumes I and II. Philadelphia: American Philosophical Society. I: 162-164 + II: 130-141

This papyrus contains parts of Ptolemy's Handy Tables.
Cite this entry
APA (7th)
Peeters, T. (2025). ἰσημερινὴ ὥρα (Lemma #1280). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/1280/
Chicago (Author-Date)
Peeters, T. (2025). ἰσημερινὴ ὥρα (Lemma #1280). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/1280/
MLA (9th)
Peeters, T. (2025). ἰσημερινὴ ὥρα (Lemma #1280). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/1280/
Harvard
Peeters, T. (2025) ἰσημερινὴ ὥρα (Lemma #1280), The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. Available at: https://zodiacglossary.github.io/lemma/1280/ (Accessed: July 4, 2026).
BibTeX 
@misc{zodiac1280,
	note = {[Online; accessed 2026-07-04]},
	author = {Peeters, Thomas},
	year = {2025},
	title = {ἰσημερινὴ ὥρα ({Lemma} #1280)},
	url = {https://zodiacglossary.github.io/lemma/1280/},
	howpublished = {https://zodiacglossary.github.io/lemma/1280/},
}