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[[Fasciculus:The Sun by the Atmospheric Imaging Assembly of NASA's Solar Dynamics Observatory - 20100819.jpg|thumb|Lux [[Sol]]is [[minutum|minuta]] octo ad [[Tellus (planeta)|Terram]] vehi capit.]]
[[Fasciculus:The Sun by the Atmospheric Imaging Assembly of NASA's Solar Dynamics Observatory - 20100819.jpg|thumb|Lux [[Sol]]is [[minutum|minuta]] octo ad [[Tellus (planeta)|Terram]] vehi capit.]]


'''Annus luce mensus'''<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''.</ref><ref>Ebbe Vilborg, ''Norstedts svensk-latinska ordbok'', editio secunda, 2009.</ref> sive '''spatium lucis annuae'''<ref>{{fontes desiderati}}</ref> (abbreviatio internationalis '''ly''' de Anglico ''light year'') est illud spatium quod lux per unum [[annus|annum]] in spatio vacuo pervolare potest. Unus annus luce mensus aequat fere 9 460 500 000 000 [[chiliometrum|km]]. Longitudo exacta dependet a definitione anni (sive annus tropicalis sive annus Iulianus sive annus sideralis significatur). [[Unio Astronomica Internationalis]] annum Iulianum praefert. Itaque 1 ly aequat 9 460 730 472 580 800 [[metrum|m]]. Unum spatium lucis annuae aequat 63 240 [[unitas astronomica|ua]] (unitatum astronomicarum) vel 0,3066 pc (parsec).
'''Annus luce mensus'''<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''.</ref><ref>[[Ebbe Vilborg]]. ''Norstedts svensk-latinska ordbok''. Editio secunda anni 2009.</ref> sive '''spatium lucis annuae'''<ref>{{fontes desiderati}}.</ref> (abbreviatio internationalis '''ly''' de Anglico ''light year'') est illud spatium quod lux per unum [[annus|annum]] in spatio vacuo pervolare potest. Unus annus luce mensus aequat fere 9 460 500 000 000 [[chiliometrum|km]]. Longitudo exacta dependet a definitione anni (sive annus tropicalis sive annus Iulianus sive annus sideralis significatur). [[Unio Astronomica Internationalis]] annum Iulianum praefert. Itaque 1 ly aequat 9 460 730 472 580 800 [[metrum|m]]. Unum spatium lucis annuae aequat 63 240 [[unitas astronomica|ua]] (unitatum astronomicarum) vel 0,3066 pc (parsec).


Exstant etiam unitates
Exstant etiam unitates
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== Notae ==
== Notae ==
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[[Categoria:Astronomia]]
[[Categoria:Astronomia]]

Emendatio ex 15:31, 18 Iulii 2013

Fasciculus:The wide-field view of bright star Alpha Centauri and its surroundings.jpg
Systema Alpha Centauri, consistens astrorum trium, proximi Solem iacunt cum 4.37 anni luce mensi.
Lux Solis minuta octo ad Terram vehi capit.

Annus luce mensus[1][2] sive spatium lucis annuae[3] (abbreviatio internationalis ly de Anglico light year) est illud spatium quod lux per unum annum in spatio vacuo pervolare potest. Unus annus luce mensus aequat fere 9 460 500 000 000 km. Longitudo exacta dependet a definitione anni (sive annus tropicalis sive annus Iulianus sive annus sideralis significatur). Unio Astronomica Internationalis annum Iulianum praefert. Itaque 1 ly aequat 9 460 730 472 580 800 m. Unum spatium lucis annuae aequat 63 240 ua (unitatum astronomicarum) vel 0,3066 pc (parsec).

Exstant etiam unitates

  • spatium lucis horalis (= 1 079 252 848 800 m),
  • spatium lucis minutalis ( = 17 987 547 480 m),
  • spatium lucis secundalis ( = 299 792 458 m).

Astrologi unitatibus spatii lucis ad distantias astronomicas metiendum utuntur. Terra, exempli causa, a Sole circiter octo spatia lucis minutalis abest. Proxima stella praeter Solem, id est Proxima Centauri, plus quattuor annos lucis abest.

Notae

  1. ↑ Lexicon Morgan; 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.
  2. ↑ Ebbe Vilborg. Norstedts svensk-latinska ordbok. Editio secunda anni 2009.
  3. ↑ Fons nominis Latini desideratur (addito fonte, hanc formulam remove).
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