Ravnodnevnica
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| event | ravnodnevnica | solsticij | ravnodnevnica | solsticij | ||||
|---|---|---|---|---|---|---|---|---|
| month | Mart | Juni | Septembar | Decembar | ||||
| godina | ||||||||
| dan | vrijme | dan | vrijeme | dan | vrijeme | dan | vrijeme | |
| 2015 | 20 | 22:45 | 21 | 16:38 | 23 | 08:21 | 22 | 04:48 |
| 2016 | 20 | 04:30 | 20 | 22:34 | 22 | 14:21 | 21 | 10:44 |
| 2017 | 20 | 10:28 | 21 | 04:24 | 22 | 20:02 | 21 | 16:28 |
| 2018 | 20 | 16:15 | 21 | 10:07 | 23 | 01:54 | 21 | 22:23 |
| 2019 | 20 | 21:58 | 21 | 15:54 | 23 | 07:50 | 22 | 04:19 |
| 2020 | 20 | 03:50 | 20 | 21:44 | 22 | 13:31 | 21 | 10:02 |
| 2021 | 20 | 09:37 | 21 | 03:32 | 22 | 19:21 | 21 | 15:59 |
| 2022 | 20 | 15:33 | 21 | 09:14 | 23 | 01:04 | 21 | 21:48 |
| 2023 | 20 | 21:24 | 21 | 14:58 | 23 | 06:50 | 22 | 03:27 |
| 2024 | 20 | 03:07 | 20 | 20:51 | 22 | 12:44 | 21 | 09:20 |
| 2025 | 20 | 09:02 | 21 | 02:42 | 22 | 18:20 | 21 | 15:03 |
Ravnodnevnica (ekvinocij) je tačka na nebeskoj sferi gdje ekliptika presijeca nebeski ekvator. Kako ekliptika presijeca nebeski ekvator u dvije tačke, postoje dva ekvinocija - proljetni (21. marta) i jesenji (23. septembra).
Za vrijeme proljetnog i jesenjeg ekvinocija Zemljanima Sunce izlazi tačno na istoku, a zalazi na zapadu. U oba slučaja dan i noć traju po 12 sati i jednaki su. Sunčeve zrake pod pravim uglom obasjavaju Zemljin ekvator.[3]
Također pogledajte[uredi | uredi izvor]
- Nebeski ekvator
- Solsticij (suncostaj)
Reference[uredi | uredi izvor]
- ^ United States Naval Observatory (January 4, 2018). "Earth's Seasons and Apsides: Equinoxes, Solstices, Perihelion, and Aphelion". Pristupljeno September 18, 2018.
- ^ Astro Pixels (February 20, 2018). "Solstices and Equinoxes: 2001 to 2100". Pristupljeno December 21, 2018.
- ^ Der Brockhaus ASTRONOMIE, 2006 Brockhaus GmbH Leipzig, Mannheim ISBN 3-7653-1231-2 (de)
Vanjski linkovi[uredi | uredi izvor]
 |
Commons ima datoteke na temu: Ravnodnevnica |
- Details about the Length of Day and Night at the Equinoxes. U.S. Naval Observatory. Naval Meteorology and Oceanography Command
- Calculation of Length of Day (Formulas and Graphs)
- Equinoctial Points — The Nuttall Encyclopædia
- Table of times for Equinoxes, Solstices, Perihelion and Aphelion in 2000–2020
- Table of times of Spring Equinox for a thousand years: 1452–2547
- Lady Day: The Vernal Equinox
- Archaeological sites with connections to the Equinox
- The Autumn Equinox in world mythology and spirituality