ku A Local Solar System Itsinda Umunyamuryango na ku A. in iyi Ikintu?
MukusanyaKDE
Gufungura Ipaji yuzuyeni? na? Gukaraga Umurongo fatizo ni, Gihinguranya i Umwaka Ibirindiro: i Cyangwa Hasi: in i, na ya: Birenzeho Cyangwa Amasaha. ya: Icyo ari cyo cyose Ibirindiro: na Icyo ari cyo cyose Itariki:.
Gukoresha: Choose your city under "Your place" (or drag the latitude), then drag the date or press a solstice button. Drag the 3D Earth to turn it.
<B Ahantu B: London
i, ku i Itariki: hejuru.
Mucukumbuzi Itangira. Ibirindiro: ni Byakoreshejwe ku iyi Ipaji:, Kuri i. ni Oya Cyangwa Yoherejwe:.
- Izuba rirashe
- Izuba ririrashe
- Izuba
- ku
- Imfuruka
City list: GeoNames (geonames.org), CC BY 4.0. Sunrise, sunset and the Sun's position: formulas of the NOAA Global Monitoring Laboratory solar calculator, from J. Meeus, Astronomical Algorithms. Sunrise and sunset are when the top edge of the Sun touches a flat horizon, allowing for the way air bends light, so they give slightly longer days than the geometric figure above. Time zones come from your own browser.
Uburebure ni Gitambitse (i Hagati Bya i ku A Bihagaritse). Icyatsi, A iminota.
iyi
- Umujyi:, Hanyuma Kanda "Na"Icyegeranyo: ni & Umunsi? Kuva: i, i Igice.
- , ku i Ibisimbuka, na Kanda.Icyegeranyo: & Umunsi Kuri 12 Amasaha umwaka: na i ni Buri gihe Kinini. i Ibisimbuka- ruguru i Bigyanye, OYA.
- na Kanda ".Icyegeranyo: The Sun sets just after midnight and rises again before 3 a.m., and it never gets fully dark. North of the Arctic Circle (66.6° N) it does not set at all.
- Drag the axial tilt to 0°, then to 90°.Icyegeranyo: Oya, buri & Umunsi ni 12 Amasaha Birenzeho na i. A, Nka, ni ku, i.
How far north or south of the equator a place is, from 0° at the equator to 90° at the North or South Pole. London is at about 51.5° N; Sydney is at about 33.9° S.
How far Earth's spin axis leans compared with its path round the Sun: about 23.4°. The tilt, not our distance from the Sun, is what causes the seasons.
in i Inkoranyamagambo →The latitude where the Sun is straight overhead at noon on a given day. It swings from 23.4° N in June to 23.4° S in December and back.
in i Inkoranyamagambo →The two days a year, around 21 June and 21 December, when the Sun reaches its farthest north or south. They bring the longest and shortest days.
in i Inkoranyamagambo →The two days a year, around 20 March and 22 September, when the Sun is overhead at the equator and day and night are roughly equal everywhere.
in i Inkoranyamagambo →The moment the Sun is highest in the sky on a given day. On the clock it is often not 12:00, because of time zones and summer time.
i i Hejuru ya: i 24 Amasaha in (Izuba) na munsi i Byose & Umunsi in (Umugoroba).
Ibyatanzwe imbonerahamwe# Umwandiko Igisubizo
| Latitudini | Equinox | Ukwezi kw'icyumweru | Mutarama |
|---|---|---|---|
| 0° N | 12 h | 12 h | 12 h |
| 23,44° N | 12 h | 13,4 h | 10,6 h |
| 40° N | 12 h | 14,8 h | 9,16 h |
| 51,5° N | 12 h | 16,4 h | 7,6 h |
| 60° N | 12 h | 18,5 h | 5,51 h |
| 66,56° N | 12 h | 24 h | 0 h |
| 80° N | 12 h | 24 h | 0 h |
ni Kuri i in Itangira, Iburyo: in i Hagati Bya i. Uburebure ni. The real reason is a tilt of about 23 degrees, and it changes everything.
Kuva: A, OYA Kuva: Uburebure.
Kureba
Itangira: in Ukwezi: ni Kuri i?
Itangira, in i Hagati Bya. Uburebure ni.
Ryari: ni Kuri i. ni OYA. ni Kuri i in Itangira Mutarama, ni in, na Bya.
ni Ihindurangano. Its spin axis leans by about 23.4 degrees. Umurongo fatizo i in Umwanya (i) umwaka:. Igice:
- in Mutarama, i i. ni, i hejuru, na i Amajyepfo. i
- in Mutarama, ni i Ikindi Uruziga.
- **** na ****, i. na Umunsi ni Bigyanye Bingana. ni i Igihe- ngombwa.
i hejuru. i Itariki: na i Ubugari:% S na Kabiri Guhindura…: hejuru i Ku, na Amasaha Bya.
Gusobanukirwa
Ingaruka Ukwezi:
- Bya i. i ni hejuru, Icyatsi i Birenzeho na Karemezi metero Birenzeho. ni Hasi:, i Gihinguranya ni KURI A Umwanya.
- Bya i UMUNSI. Amasaha Bya Birenzeho Igihe Kuri Hejuru na Birutwa Umunsi Kuri Hasi.
Ibirindiro: Cyangwa Bya i ni Ihindurangano. It swings between +23.44° (June solstice) and −23.44° (December solstice) and crosses 0° at the equinoxes.
, i Ubuhagarike hejuru i ni:
noon height = 90° − |latitude − declination|
51.5° N) mu Ukuboza: 90 - |51.5 − 23.44| = 61.9° In December: 90 − |51.5 + 23.44| = 15.1°. ni A Itandukaniro in i.
i. North of the Arctic Circle (66.56° N) there is at least one day each year when the Sun never sets, and one when it never rises.
Umunyeshuri
Uburebure Bya Kuva: i ISAHA Imfuruka Bya, i Hagati A Bibonerana:
= - φ · δ, = 2 / 15 Amasaha
Na: Ubugari: φ na δ, in Dogere. - tan φ · tan δ ≤ - 1 i Oya; NIBA ni ≥ 1: Oya. At the equator (φ = 0) the formula gives 12 hours on every day of the year.
ni i * Gitambitse * & Umunsi. Real daylight is longer by several minutes because the atmosphere bends light over the horizon (refraction, about 0.57°) and because sunrise is defined by the Sun’s top edge, not its centre (about 0.27°). Official sunrise tables use −0.833° instead of 0°.
Kuva: i Igihe- ngombwa λ na ε: sin δ = sin ε · sin λ. i Naval Observatory’s approximate formula for λ, accurate to about 0.01° this century.
Uburebure: ni Gitoya. Between perihelion (147.1 million km) and aphelion (152.1 million km) the sunlight reaching Earth changes by (152.1/147.1)² ≈ 1.069, about 7%. Tilt changes the noon sunlight per square metre at London by a factor of sin 61.9° / sin 15.1° ≈ 3.4, and the day length by a factor of more than two.
Gushaka
Set the latitude to where you live. Find the date of your longest day. Then drag the axial tilt slider to 0 degrees: what happens to the seasons? Try 90 degrees too, like Uranus.
. i.
Igisubizo
3 Muhugura Ibibazo. Kuri NIBA ni i Iburyo:.
-
i?
- A ni Kuri i in
- B Bya Guhindukiza Umurongo fatizo
- C Ukwezi
- D in i Urumuri
i
B. Bya Guhindukiza Umurongo fatizo ni Kuri i in Itangira,.
-
i, Umwanya 24 Amasaha Bya
- A Ikizamuko
- B City in United Kingdom
- C North Pole
- D Impuzandengo y'amabara
i
C. North Pole
-
i, & Birenzeho ni i & Umunsi ku ()?
- A 12 amasaha
- B 24 hours
- C ku i
- D 0 amasaha
i
A. 12 amasaha
in iyi
Inkomoko
- U.S. Naval Observatory: Approximate Solar Coordinates
- NASA NSSDCA Planetary Fact Sheet (obliquity, perihelion, aphelion)
- JPL SSD: astrodynamic parameters (obliquity of the ecliptic at J2000)
- NASA Space Place: What causes the seasons?
ni CC BY-SA 4.0.