Quantum redactiones paginae "Annus luce mensus" differant

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[[Fasciculus:The Sun by the Atmospheric Imaging Assembly of NASA's Solar Dynamics Observatory - 20100819.jpg|thumb|[[Sol]], stella [[Systema Solare|Systematis Solaris]]; eius [[lux]] octo [[minutum|minutis]] iter ad [[Tellus (planeta)|Tellurem]] facit.]]
 
'''Annus luce mensus'''<ref>Lydia Ariminensis, [http://ephemeris.alcuinus.net/nuntius.php?id=1012 <small>NOVA TELLUS NOSTRAE SIMILIS INVENTA EST,</small>] ''Ephemeris,'' 27 Iulii 2015, 12:24: "quod a nostra terra CXLV annos luce mensos absit."</ref><ref>[http://eweb.furman.edu/~dmorgan/lexicon/silva.htm Lexicon Morgan]; [http://books.google.fi/books?id=0PXHgsvKqkkC&pg=PA79&lpg=PA79&dq=%22annus+luce+mensus%22&source=bl&ots=phETBFMJUL&sig=Fr4J3aswEaX9OaqbwvCBiKROr40&hl=fi&ei=Ev-qTrb9J8P34QTzjYXdDg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBsQ6AEwAA#v=onepage&q&f=false José Juan Del Col, ''Diccionario auxiliar: español-latino para el uso moderno del Latín.'']; Tuomo Pekkanen & Reijo Pitkäranta, ''Lexicon hodiernae Latinitatis Finno-Latino-Finnicum'' (Helsinki: SKS 2005) s.v. ''Valovuosi''; [[Ebbe Vilborg]]. ''Norstedts svensk-latinska ordbok''. Editio secunda anni 2009.</ref> ([[abbreviatio|imminutio]] Anglica '''ly'''<ref>Ex [[Lingua Anglica|Anglico]] ''light-year'' sc. "annus lucis"</ref>) est [[spatium]] quod [[celeritas lucis|lux]] per unum [[annus|annum]] in spatio [[vacuum|vacuo]] pervolare potest. Unus annus luce mensus aequat fere 9 460 500 000 000 [[chiliometrum|km]]. [[Longitudo]] exacta a definitione anni (sive [[annus tropicus]] sive [[annus Iulianus]] sive [[annus sideralis]] significatur) dependet. [[Unio Astronomica Internationalis]] annum Iulianum praefert. Itaque 1 ly aequat 9 460 730 472 580 800 [[metrum|metrorum]]. Unum spatium lucis annuae aequat 63 240 [[unitas astronomica|unitatum astronomicarum]] (ua), vel 0,3066 parsec (pc).
 
Exstant etiam unitates