ἰσημερινὴ ὥρα
isēmerinē hōra

Greek noun

Last edited: 2025-02-26
Primary meaning equinoctial hour
Literal translation equinoctial hour
Variants
ἰσημερινὴ ὥρα isēmerinē hōra
ὥρα ἰσημερινή hōra isēmerinē
ἰσημερ ὧρ isēmer hōr abbreviation
Edited by

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: December 1, 2025).

BibTeX
@misc{zodiac1280,
	note = {[Online; accessed 2025-12-01]},
	author = {Peeters, Thomas},
	year = {2025},
	title = {ἰσημερινὴ ὥρα ({Lemma} #1280)},
	url = {https://zodiacglossary.github.io/lemma/1280/},
	howpublished = {https://zodiacglossary.github.io/lemma/1280/},
}