Meridianus

Meridianus circulus circulus magnus est, qui per utrumque polum terrae globi it.

Meridiani circuli recto angulo circulis vel orbibus parallelis secantur, quorum unus etiam circulus magnus est, scilicet linea aequinoctialis.

Locus navis in mare exempli gratia determinatur circulo meridiano et circulo parallelo seu longitudine et latitudine geographica. Nauta circulum parallelum quo navis est invenire potest metiens altitudinem stellae polaris. Si altitudo polaris exempli gratia 90 gradus est, navis in polo septentrionali est. Si altitudo nulla est, si polaris ad lineam finientem stat, navis nescio quo in linea aequinoctiali est.

Quo modo autem meridianus inveniendus est? Nauta tempus locale metiri potest, exempli gratia tempus meridiei. Si etiam tempus locale contemporaneum cuiusdam meridionalis statuti horologii ope noverit, differentia temporum indicat quo meridiano nauta est. Si tempus locale exempli gratia meridies est et si novit horologii ope eo puncto temporis tempus locale in quodam meridiano primario ut dicitur octava hora esse, nauta ita novit se quattuor horis (intervallum inter duodecimam horam et octavam horam) ad orientem versus esse circuitu globi quattuor et viginti horas habente.

Nostra aetate hic primarius meridianus loco vici Grenovici statuitur. Ille meridianus qui trans observatorium Grenovici it, anno 1884 Heroopoli primarius meridianus declaratus est.

Nexus interni

  • Glossarium astronomiae
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Tips & Hints
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Adrian R.
26 July 2011
Save 10 pounds -- stand on the path up the hill below the meridian and line up the line on wall to your back and look down at the building with the four stacks. Line up with the second stack from the
Gagan Singh
5 August 2015
Scenic views of London. If you want the free pictures of meredian then there is a spot outside the museum. Don't miss the clock museum, shows beautiful time pieces.
I
28 August 2015
The Peter Harrison planetarium was my favourite. I wish I'd spent more time there than at the Flamsteed house. Loved Dark Universe with Neil Degrasse Tyson played on the ceiling of the planetarium.
Brecht Hortensius
8 March 2022
The Royal Observatory is closed for refurbishment (March 2022) and although the Meridian runs all the way up to the North Pole and down to the South Pole here it’s hidden behind a gate.
Fabiana Chávez
1 April 2016
No dejes de visitar este lugar, si Baas a Londres. Hermoso lugar, no olvides tomar la típica foto del meridiano cero, con un pie en el este y otro en el oeste
Rana Tefe Kurtuldu
5 September 2016
Sıfır noktası başlangıç meridyeni! Londra'ya gelmişken uğramak lazim; DLR ile ulaşım tavsiye edilir
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