How Far is Far Distances in space are
- Slides: 13
How Far is Far?
Distances in space are so large that well-known units such as kilometres are almost meaningless. Using kilometres to measure the distance between Earth and Jupiter would be as silly as using millimetres to measure the distance between Victoria and St. John’s. The units just aren’t suitable. • Distances within the solar system are usually measured by astronomical units (AU). • Distances involving galaxies use a unit called the light-year.
About 7400 km (7 400 000 mm)
Earth to Moon Distance Average of 384, 400 km
Sun to Earth Distance 1 Astronomical Unit (AU) 93, 000 Miles 1 AU = 149, 599, 000 km Astronomical units video
Body Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto AU 0. 39 0. 72 1. 0 1. 5 5. 2 9. 5 19. 2 30. 1 39. 5
The Light-Year 300, 000 kilometres/second X 60 seconds/minute X 60 minutes/hour X 24 hours/day X 365 days/year 9, 460, 800, 000 kilometres (~ 9. 5 trillion kilometres) Light years video
Our Nearest Neighbors Alpha Centauri A & B Proxima Centauri rs a Ye ab t ou 0 4 0 0 s t 0 a, r h e 0 g , t-0 Y Li h 0 5 0 ig L 0 , 2 40. 0 0 0, km
The Solar Neighborhood Galactic Center ~ 40, 000 Light-Years
The Size of Galaxies 100 , 000 Ligh t-Ye ars
The Galactic Neighborhood 2 M illio n. L igh t-Ye ars
Hubble Deep Field Image
Antigentest åre
Far distances
Sour cream walls is an example of pun
In a kingdom far far away
Far far away city
Endless night figure of speech
Nfpa separation distances
Vertical distance measurement in surveying
Images of weather systems on television come from *
Easterlies and westerlies
Gas particles are separated by relatively large distances
Winds that blow over longer distances build up bigger
Equal distances covered per unit time
Tree distances i
