Seasons Definition and 24 Threads

Good afternoon, I am working on writing a story that is set on a habitable second Moon. I suppose I could easily say it's a mild planet that splits into three main seasons and make up some story about how the first Moon appears every so often for a month of phases and then vanishes. As a...

Hello. One winter can be mild and snow free, while the next winter is a frozen wasteland. One summer can be blistering hot, while the next is rather cool. More specifically, if you take that example down to the day, then why can the weather be drastically different on July 31st 2020 compared to...

Trying to establish the conditions needed in order for a planet to have more than the standard 4 seasons. I may be wrong for assuming an elliptical orbit is required, but could make sense in order for there to be two winters for example.

In my current location there isn't a distinct Fall season. When I lived in the Eastern USA, Fall often put me in a quiet and melancholy mood. I read alot. In the winter, I go to bed earlier, drink more coffee, and eat more hot foods. All this has to do with the desire to be warm. Yet my...

There are 3 cycles important for determining seasons, extreme temperatures, and length for any given planet in any given orbit as long as it isn't too elliptical. Those are: Orbital precession(this is what causes supermoons(when perigee lines up with a full moon)) Axial tilt(this determines...

Homework Statement On Earth, seasons occur due to the tilt of our planet. In the SSDS (A Dyson Sphere built around our sun), we can cause seasons to occur by having the Dyson sphere be not perfectly centered around the sun. If you want the sun to be 10% closer to the one side of the Dyson...

A Milankovitch cycle is defined in Universe Today as "a cyclical movement related to the Earth’s orbit around the Sun." There are three elements to a Milankovitch cycle that affects the amount of solar heat and with it, the Earth's climate: Eccentricity (Orbital Shape)--The elliptical shape...

Currently, Earth's eccentricity (orbital shape) is 0.0167086. Zero is a perfect circle whereas One is parabolic escape orbit and any greater becomes a hyperbola. And in the theory of the Milankovitch cycles, Earth's eccentricity varies between 0.000055 and 0.0679 over a period of 100,000 years...

Hi, I was thinking if maximum light intensity underwater during seasons changes somehow. I firstly thought about considering monthly solar irradiance (http://neo.sci.gsfc.nasa.gov/view.php?datasetId=CERES_INSOL_M) however I thought this would have been biased at certain latitudes due to...

Hello guys, can someone explain me the four seasons ? Why they repeat in same intervals every year ? I think of this: Thanks

http://www.wired.com/2015/05/dna-changes-seasons-just-like-weather/

So, I am new to the forum. I started following on Twitter and wanted to reply to thank members for their answers to a question about the four seasons. I had the very same question and am glad to see what they wrote. Also, one of the members drew a diagram to show the Earth's tilt and the seasons...

Hello there! What I have never understood is that our seasons are the result of the tilt of the Earth's axis, and I've always interpreted that to mean that the northern hemisphere is closer to the sun in June, July, and August, and the southern in December, January, and February. If that is the...

Hello good people, I'm using http://www.ecy.wa.gov/programs/eap/models/twilight.zip by Greg Pelletier to calculate sunrise/sunset times at a desired location. However, the sheet formulae return an error message (#NUM) for latitudes above the Arctic/Antarctic Circle since the sun/moon almost...

Hello, I've been reading astronomy books for some time now but after leaving things for a while I seem to forget rotation directions. For example, I know that the Earth spins in the anticlockwise direction. That is easy to see why. They say that motion of the Earth is eastwards. Because of the...

I read of the Milankovitch Cycles which explains the collective effects of changes in the Earth's movements upon its climate or in other words long term climate change. There is a flash animation here http://www.wwnorton.com/college/geo/egeo2/content/animations/18_2.htm I have also read that...

I figured out the answer to the question in the title. The seasons are due to the Earth's north to south axis facing towards or away from the sun at different times in the year. I have a couple of other questions: 1.) What does a week signify? A day is how long it takes for the Earth to make a...

This is not a homework question. This is the result of trying to think of a way to remove seasons. Imagine a case where the Earth's axial precession had a period of exactly one year (instead of about 26,000 years) and that such a precession was counter clockwise (matching the direction of the...

Just made this, it's interesting to look at. Might be useful for vacation planning as well ;) http://img8.imageshack.us/img8/7205/bluemarble2004months.gif

OK, the prevailing wisdom says that the tilt of the Earth relative to the plane of the ecliptic is the main reason for the Earth's seasons. This is caused by, among other things, the variation in angle at which the sun's light hits the Earth, the day length and distribution of land/sea masses...

I'm an artist, currently researching the four stomachs of a cow for my sculpture project. As part of my finished piece I wish to incorperate the seasons of the year. Four seasons and four stomachs would fit together nicely. If there happens to be some kind of real connection it would benifit...

Is it possible to review some of movies which concerns a particular period of history? I mean we can discuss art and history at the same time. Talking about the movie itself and the historical facts. And how much the movie was successful in telling the facts! I think "A man for all seasons"...

Are there any seasons in regions along the equator ?

what does evolution say about why we have seasons. is evolution the proper term to use here? well anyways, for what reason would seasons rise out of chaos. it seems rather that they would be created to play out the game of life, not for any true purpose. i mean there is a purpose now, but why...