… Flashcards
(8 cards)
Intro
Altitude is a function of the horizon? But its not the same as decleration
Equivlantent of the equator
0
Longitude is 0
Grennich England - green time military time
Across the latitude changes the timezone i think
Latitude and Longitude
The Sky Varies with Latitude and Longitude
If we were at the north pole, polaris would be directly ahead but from here it’s not
Altitude of celestrial pole = latitude
As you change latitude and go down towards the equator - polaris would appear at the equator
90 degree
Everywhere between northpole and equator it’s at a slant
When the horization shifts, polaris appears to shift in the sky
Go up in altitude r=or latitue, t=
Shift latitude .. yeah
AINT GOING NO WHERE WITH THAT ATTITUDE
I CANT FIND ANYONE WHO’S LIKE ME AT THIS LATITUDE
CANT GO NOWHERE WHEN IM MAD AT YOU
I CANT FIND ANYONE WHO’S LIKE ME AT THIS LATITUDE
Astrology shift
Earth’s North Pole
Percession
A rotation that … the wobble that happened in a spining top, not the direction it’s rotaing
Procession is the opposite of what it’s like with a spinning top
Wobble in a top goes the directini
Earth’s wobble 26000 years
Axis points polaris
A few thousand year ahead lr…
Thousand years ago was fugenn
Equanox and Soulstis
Seasons
Winter Summer soulstic
Auttom Spring equanox
Northen hemisphere but southern hemisphere is different
If it’s winter here, it’s summer in australia
DECEMBER ITS SUMMER FOR THEM thats weird
Our seasons are not based off of how close we are based on the sun.
It has to do with the axial tilt
If the first was true then the northern and southern hemsiphere would both have summer at the same time
We’re fartherst aware during summer but in the southern hemisphere it is closer
For us, winter we’re the closest to the sun and in summer we’re farthest awy from the sun
During June sostis or our summer sostic our north pole points towards the sun and during winter it points away
South pole points towads away its summer
If your pole towards the sun, that stranslate to yout summer. Away from the sun in your winter.
Northern hemisphere north pole Southern hemisphere south pole.
Euanox the same 12 day 12 night everyone equanox equal day equal night
Why?
Direction of sunlight
During quanox sun is directly east and west
Seasonal hanges more extreme at higher latitudes
Long periods of darkness above the arctic circle\
Senotic period Syderic period 29.5 day cycle lengenthed beyond would it would be if the earth was simply stationary
Full moon back to a fulll mooon
One degrees
1.3 more days to go all the way around
Syncronis rotation
Tethered to a string
Tether ball
How the moon rotates
If u were on the sun youd see all sides of the sun
As sunlight passes thru thee earths atmosphere it bends and reflacts the sunsets and sunrises on the face of the sun for total lunar eclipse with looks like the blood
Light bends like in water and prisms
Passes thru more atmosphere filtering out more blue light so it looks redorange when its closer to the horizon
…
Umbra and penumbra
Eclipse
Anular Eclipse
Moon looks bigger and smallersometimes cuz it gets closer and farther as it orbits
Annular is a full eclipse ecpet its too small son we see the outline of the sun behind it
Full moon lunar eclipse
New moon solar eclipse
Note.. pass thru. Something plane ;jsk;agsras
Planets
Line on ecliptic plane
-1.4 seres
-4.2 venus
-20 is sun
Uusually next brightest jupiter, saturn, mars
Stars twinkle planets do not
