Due to it’s slow rotation it actually completes a full rotation of the sun before it itself fully rotates.
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Cite your source ffs
It kinda depends how you define “a day”. The usual standard colloquial definition we use would be a “solar day”, i.e. how long it takes for it to go dark and light once each, i.e. noon to noon.
The definition you’re using in this post though is a “sidereal day”, which if you just say “a day” no one would mean, thus this post is misleading. A sidereal day is how long a planet needs to spin around itself.
A Venus “solar (normal) day” (like we normally use the phrase “day”) is 116.75 earth days, while a Venus year is 224.7 earth days. The “sidereal day” that you’re talking about here is 243 earth days long. So a day on Venus is actually shorter than a year on Venus, at least if you use our usual definition of “day”.
Since Venus itself spins opposite to its orbit around the sun, its own spin together with its orbiting around the sun add up together to make the “solar (normal) day” shorter.
An Earth sidereal day is 23 hours 56 minutes while its solar day is 24 hours long. Here, the sidereal day is shorter than the solar day, because the Earth spins in the same direction as its orbit.
Thanks, I came looking for this clarification.
LLMs love giving the sidereal day as the length for some reason.
the datetime library developer takes another bottle from the liquor cabinet
My son went back to college in his late 20s to get a degree that might lead to a job, so he was in class with a lot of 18 year olds.
He had a astrophysics class, and got in an argument with a girl who insisted that the Sun went around the Earth. He asked her how the length of a year was measured, and she said that long, long ago, some guys just chose an arbitrary number of days to make a year.
How sure are you that she was not the reincarnation of Aristotle?
I love how much of a rebel non-conformist Venus is. Years longer than its days, rotates the opposite direction than all other planets because fuck you, thats why. And don’t you even THINK about getting close and trying to land on her. Just ask the Russians how that went. You can’t handle her pressure, temperature nor toxic atmosphere. What a bad bitch. She doesn’t need nor ask your permission to do jack shit.
Yeah she’s hot and toxic, but I can change her…
Bro talking about terraforming venus while we’re still not done venusforming earth.
I ate Taco Bell last night and let me tell you about hot and toxic.
Years longer than its days
That sounds oddly familiar
That was like living with my ex-wife.
You can’t handle her pressure, temperature nor toxic atmosphere.
But… but my ex’s name wasn’t Venus.
Hot, toxic, corrosive, and capable of crushing a man. Just how I like them.
rotates the opposite direction
By this, you mean its rotation around its own axis?
Venus sure as shit wont rotate around anyone else’s axis. Venus dgaf.
😂 joking aside, was referring to its solar orbit 😁
Yeah, most planets have the same rotation direction as orbital direction (counter-clockwise rotation, counter-clockwise orbit) but Venus rotates clockwise.
Then there is
NeptuneUranus that just rolls around…Neptune has learning disabilities and we accept him just the way he is.
Uranus rotates on its side. Instead of rotating with its axis roughly perpendicular to the plane of its orbit (like all the other planets in our Solar System), Uranus rotates on its side (along its orbital path). This tipped rotational axis gives rise to extreme seasons on Uranus.
My anus certainly doesn’t rotate perpendicular…
Anyway, that was terrible Thanks for the correction.
Hey OP! I’d rather spend a day with you than on Venus!
One is rotation, but the other is revolution.
Rotation: circular motion of a body about its own axis.
Revolution: motion of an object moving around another object.
Wow that is incredible. Isn’t Venus year equal to 200 or so Earth Days?
Pretty sure it also spins the “wrong way” compared to all the other planets, probably a massive impact at some point stopped it spinning and sent it backwards slowly
That’s a good observation. I think you’re right. It really is insane how much evidence of impacts and other forms of geological trauma is extant on other worlds
Makes you imagine if the galaxies didn’t spin so slow (relative to human timescales), we’d be watching rippling shrapnel as shit collides with one another in real time
Space is so cool, fuck
Cosmic billiards
Are there any ramifications of that?
According to Superman (1978), time would move backwards.
It’s basic science really.
I think (although I could be wrong), that that film was trying to depict that Superman was flying so fast that he went back in time. And the best visual they could come up with was that the earth was spinning “backwards” in order to depict this.
The toilet water swirls the other direction.
this is, in fact, not true. Studies have shown, that there are no toilets on venus and - as a result - there is no toilet water that could swirl. [citation needed]
Citation: It swirls in MY mind.
Could this also have contributed to the massive greenhouse effect it has?
According to Wikipedia, it seems that the current scientific explanation is that the runaway greenhouse effect was caused by the evaporation of oceans (caused by the brightening of the sun). The presence of vapor in the atmosphere led to the runaway greenhouse effect.
https://en.wikipedia.org/wiki/Runaway_greenhouse_effect?useskin=monobook#Venus
I guess whatever hit it could have been made of largely carbon dioxide? No idea if anyone knows where the CO2 came from
Imagine there’s a leap year and suddenly the year is three times as long
I think my physics teacher told me this fact but followed it up with “Measuring a planet’s rotation around the sun by how fast it rotates around it’s center is like trying to measure the speed of a truck based on how many rotations a ballerina can spin inside of it.”
That quote haunts me.
Bit silly. In this scenario, you’re not measuring the speed of the truck. You’re measuring the time it takes to complete a lap. And we are the ballerina rotating, and as we are a miniature plastic ballerina with no outside frame of reference, our own regular rotation is the only consistent measure we have.
How did the ballerina get inside the truck? Is she alright?!
Is she spinning because she’s happy? Or is she spinning to drill a hole in the floor and escape?
This one fact always blows my mind.
quality TIL post. we didn’t know this either!
It took me like three readings of the post title to comprehend it wasn’t a typo lol
Are we talking sidereal day or solar day? Both?
