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re: If Earth rotates around sun at 365.265 days a year, will seasons start earlier n 5,000 yrs

Posted on 2/27/24 at 8:50 pm to
Posted by Alt26
Member since Mar 2010
28617 posts
Posted on 2/27/24 at 8:50 pm to
Posted by Klingler7
Houston
Member since Nov 2009
12062 posts
Posted on 2/27/24 at 8:50 pm to
He spent too much time thinking about this. Wait a second, it’s a brilliant question
Posted by HeadSlash
TEAM LIVE BADASS - St. GEORGE
Member since Aug 2006
49945 posts
Posted on 2/27/24 at 8:52 pm to
Why can't we see the dark side of the moon?
Posted by Big L
Houston
Member since Sep 2005
5444 posts
Posted on 2/27/24 at 8:57 pm to
Won’t the sun start expanding at some point and won’t that affect our orbit? I mean we will probably all be baked to death by then so it won’t matter I guess
Posted by MikeBRLA
Baton Rouge
Member since Jun 2005
16490 posts
Posted on 2/27/24 at 9:00 pm to
quote:

Why can't we see the dark side of the moon?


Bc the moon is in tidal lock.
Posted by TigerintheNO
New Orleans
Member since Jan 2004
41254 posts
Posted on 2/27/24 at 9:03 pm to
Is that why Pope Gregory said to skip Leap Years when the year is divisible by 100 and not divisible by 400?

1700, 1800, 1900, 2000, 2100, 2200 and 2300

2000 was the only one with a Leap Year
Posted by captron
Occupied Sillycon Valley
Member since Jul 2018
408 posts
Posted on 2/27/24 at 9:04 pm to
quote:

Why can't we see the dark side of the moon?


We see the dark side of the moon every new moon.
Posted by LSUballs
RayVegas LA
Member since Feb 2008
37867 posts
Posted on 2/27/24 at 9:13 pm to
My sister has 3 children. 2 of the 3 were born on Leap DAY. Both Feb 29th. Shits cray
Posted by blue_morrison
Member since Jan 2013
5146 posts
Posted on 2/27/24 at 9:23 pm to
February gets an extra day baw

edit: you know what, I was going to just delete this comment but you get to read it for the 12th time now. Good luck to you.
This post was edited on 2/27/24 at 9:24 pm
Posted by Ace Midnight
Between sanity and madness
Member since Dec 2006
89670 posts
Posted on 2/27/24 at 9:24 pm to
You know it literally won't be anything at all to add a February 30th as a one-time thing to rock it right back to the current system right?
Posted by phil good
Baton Rouge
Member since Aug 2013
1558 posts
Posted on 2/27/24 at 9:25 pm to
NERD!
Posted by lostinbr
Baton Rouge, LA
Member since Oct 2017
9668 posts
Posted on 2/27/24 at 9:26 pm to
quote:

There are 1,440 minutes in a day. Does that mean once every 160 years, 1,440/9=160, seasons start one day earlier. So over a 5,000 year span, Summer will begin May 21st?

No, for two reasons:

1. Centennial years are only leap years if they are divisible by 400. This means 3 leap years get skipped every 400 years. So the “average” calendar year over a 400 year period is actually 365 days, 5 hours, 49 minutes, 12 seconds.

2. If you’re smart, you realized that this should actually make the seasons shift more over time using the orbit time in your OP. That’s because the orbit time you listed (365 days, 6 hours, 9 minutes) is not the correct time when accounting for seasons.

You see, that is the sidereal year - the amount of time it takes the Earth to rotate a full 360 degrees around the Sun from an independent frame of reference.

However, seasons are based on the equinoxes and solstices - which are a function of Earth’s rotational axis relative to the Sun. Since Earth’s rotation “wobbles” a little bit over time, the Sun doesn’t cross the equator at exactly same the moment that the Earth finishes its rotation around the Sun.

This is the tropical year, which is approximately 365 days, 5 hours, 48 minutes, 45 seconds (20 seconds earlier than the average year of the Gregorian calendar). This means the Summer solstice will theoretically be 1 day earlier every ~4,300 years.
Posted by Macfly
BR & DS
Member since Jan 2016
8143 posts
Posted on 2/27/24 at 9:26 pm to
Let's circle back to that question in 5,000 years.
Posted by Free Everybody
United States of America
Member since Feb 2024
56 posts
Posted on 2/27/24 at 9:33 pm to
quote:

Earth revolves in orbit around the Sun in 365 days, 6 hours, 9 minutes
K
Posted by Kcrad
Diamondhead
Member since Nov 2010
55092 posts
Posted on 2/27/24 at 9:34 pm to
quote:

We see the dark side of the moon every new moon.
Seriously?

As far as the divide by 400 thing goes, another simple adjustment of the calendar solves any problems caused by that.

Posted by lostinbr
Baton Rouge, LA
Member since Oct 2017
9668 posts
Posted on 2/27/24 at 9:41 pm to
quote:

We see the dark side of the moon every new moon.
quote:

Seriously?



He’s not technically wrong. I think the question was probably asking about the far side of the moon rather than the “dark” side, though.
Posted by Hobie101
Member since May 2012
481 posts
Posted on 2/27/24 at 10:15 pm to
Posted by junkfunky
Member since Jan 2011
33987 posts
Posted on 2/27/24 at 10:18 pm to
Yes
Posted by WestCoastAg
Member since Oct 2012
145291 posts
Posted on 2/27/24 at 10:22 pm to
Lol you believe what the government tells you and think the earth is round
Posted by beebefootballfan
Member since Mar 2011
19074 posts
Posted on 2/27/24 at 10:41 pm to
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