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FRX51 t1_iubos9j wrote

I feel like I vaguely knew that Jupiter had a short day-night cycle, but Jesus that thing spins so fast.

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PD711 t1_iucvpxi wrote

When you think about how big they red spot is, and how fast it is traveling around that huge planet...

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Torcal4 t1_iud1qz5 wrote

Don’t forget that there’s also the spin from earth that basically goes the other way when staring at Jupiter so that probably contributes a little bit too.

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OpinionatedShadow t1_iudm6z5 wrote

I'm no scientist, but it's so far away and so large that I can't imagine that earth's rotation has any noticeable effect other than its position in the sky. Happy to be proven wrong though.

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AffectionateCrab6780 t1_iudv4kz wrote

When I'm looking at jupiter with my telescope it's in view for about 30-45sec before I have to readjust it. I'm brand new to amature astronomy but I do know it moves fast even looking from here.

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OpinionatedShadow t1_iudv9wn wrote

Sure, I agree that it moves in the sky, but not that earth's rotation would have any noticeable effect on how its rotation appears to us

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Torcal4 t1_iue1wet wrote

I figured maybe just a slight effect. But you’re probably right.

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J3RRYLIKESCHEESE OP t1_iubjk7y wrote

Here is my 3.5 hour time-lapse of Jupiter that I captured using my 10 inch Dobsonian from my backyard in Salem, OR between 12 and 3:30am PST on September 25, 2022.

Process: Shot over 70, 90 second videos resulting in over 200GB of data. Then, batch stacking done in AutoStakkert where the best 15-30% frames were stacked. Wavelets and RGB alignment done in AstroSurface, and then final color, brightness and contrast adjustments were done in GIMP using batch image manipulation plugin. Finally, the animation was made using Davinci Resolve video editing software, and converted to GIF using PIPP.

Gear: Skywatcher 10" GoTo Dob, X-Cel 3x, ZWO ADC, ASI178MC + UV/IR cut filter

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Steegzqt t1_iugwubj wrote

Bad ass man! I’m from salem Oregon as well! Where in salem does it get dark enough to see Jupiter? So insane!

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Classroom_Strict t1_iuc054g wrote

3.5 hours and the "Great Red Spot" moved that far! Wow. That would be like a 9-10 hour day I'm guessing. Going to look it up now.

9 hours and 56 minutes at the poles and 9 hours and 50 minutes at its equator. That's insane for that big fucker.

Cool shots btw.

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Lightningpaper t1_iubkqeb wrote

Gorgeous. I’m not used to an impressive night sky because of where I grew up. But when I went to my campus observatory and saw Jupiter and the four Galilean moons, I just lost it. It will never not be amazing.

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desithrowaway5948 t1_iubluhh wrote

We had a teacher back in elementary school who brought their telescope for a viewing of Jupiter and Saturn. It was incredible. Every time we get new images it's still like fresh awe every time.

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doge_lady t1_iudss82 wrote

You could see it during daytime?

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AdolescenceOfP1 t1_iubqd1u wrote

There are moments of ASTONISHING clarity on this. Job incredibly well done!!

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J3RRYLIKESCHEESE OP t1_iuby6m0 wrote

I got very lucky with the seeing conditions, they were near perfect that night. Thank you for the comment :)

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ZSpectre t1_iubz26g wrote

I don't know much at all about telescope use and stargazing, but I was wondering what may have been causing the rhythmic and slightly "blurring" effect during the time lapse. Would it be due to something like the slight changes to the thickness in our atmosphere?

And I'd like to think that my question is really a testament to how clear and well done this was that it made me curious about the cause of any slight artifact and noise.

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J3RRYLIKESCHEESE OP t1_iuc0nr6 wrote

Yes, something like that. Most likely it was due to some thin low clouds passing in front of Jupiter but it could have also been due to wind making the air unstable causing more refraction. Also, towards the end of the time-lapse it was mostly due to the altitude, the lower Jupiter was in the sky, the more atmosphere light had to pass through resulting in a blurred image.

This is also why telescopes are usually on mountain tops, to avoid the effects of atmospheric distortion as much as possible :)

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MBchrono t1_iueuqld wrote

This is so amazing! I remember getting a telescope as a kid. It was just a cheapo but I loved it so much. I can't believe you can get images like this from your backyard now. Incredible!

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LOUDCO-HD t1_iucc3io wrote

I was lucky enough to see the Triple Transit in October of 2013 through my Meade ETX 125. Unfortunately my astrophotography skills were not so good at the time so my imagery was an overexposed splotch. Still, amazing to see it happen in real time, similar experience to seeing Saturn for the first time from my backyard, not on tv or the internet.

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Which_Professor_7181 t1_iucc4zc wrote

I love that people with real telescopes will upload footage of what they see I think that's pretty cool for some of us that don't have a telescope

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FatiTankEris t1_iugm53h wrote

Telescopes have become pretty affordable.

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Which_Professor_7181 t1_iugnie8 wrote

no no no I never said that I couldn't afford one. I'm just saying in my life right now there's no telescope that I'm using and then you get images like this and that's cool to see. and you're right it is time to set up something

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FatiTankEris t1_iugnmnw wrote

If you're thinking about it, I recommend reading the pinned guide on r/telescopes and general look up on there and r/astrophotography.

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scorzon t1_iuco4d9 wrote

Fantastic images, much appreciated.

As an astronomically interested (though completely unknowledgeable) engineer from a totally different field, what is the process you use to locate, zoom and then track a body that moves across our night sky so rapidly. At that distance doesn't it move across your field of view very quickly?

Apologies if that is a really dopey question, but I'm old enough now to not care what people think of me 😁

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J3RRYLIKESCHEESE OP t1_iue9xnn wrote

Hey thank you for the comment.

Most of the planets are bright and visible to the naked eye, there are websites/apps like Stellarium that show where they are in the sky so that helps locate them. My telescope is motorized so it tracks and points to the object automatically as it moves across the sky when the telescope is properly aligned.

The telescope I use is a newtownian, which uses 2 mirrors, a concave primary mirror and a flat secondary mirror. Then you can insert barlow lenses into the focuser barrel to increase the focal length, this way you can zoom :)

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scorzon t1_iuejth6 wrote

Excellent, thank you. I suspected it would need to be automatic of course, I remember as a young lad with a basic as beans "my first refractor telescope" trying to keep up manually with the moon. My first and only telescope. If I lived in a properly dark skies area of England I'd think about getting another, 40 years later, it's just mind blowing what you can see.

Do you mind me asking what kind of ball park cost we'd be talking for a setup like yours. No probs if you'd rather not say.

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FatiTankEris t1_iugmvxu wrote

I looked up, and it seems to be around $2500 or so... But it depends on where you buy, and if there are used parts.

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scorzon t1_iuh6tri wrote

Cheers, I got excited when I saw the notification for your reply on my phone, as it truncated that figure to $250 😁

Still $2500 seems very reasonable and these days would be some £2500 I expect. I just need another £250,000 on top of that to afford the upgrade to a house in a dark skies part of the country 🥴

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FatiTankEris t1_iuhb6u6 wrote

Well, at least planets don't need dark skies. Can be seen during daytime.

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scorzon t1_iuhmvpg wrote

Now see that's what I mean, I'm interested but without any domain knowledge. Of course you don't need amazingly dark skies for the planets, that never occurred to me. Thanks for the steer.

Out of interest what would the OP likely see with that kind of setup when training the lens on some nearby stars. Other than our own sun of course 🤭

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FatiTankEris t1_iuj5ig8 wrote

That depends on what's sensing the light at the end, your eyes or a camera. If the eyes, then it would look like the night sky, but with stars everywhere. Nebulas would look like grey clouds in the stars. One has to remember that they'll always be pinpoints though, because they're too far away, but some multi-starsystems might resolve separation between stars. If you're using a camera, then what can be seen is increased a lot, an exposure of 2 seconds can reveal colour too. But the sky is moving from our view as our Earth rotates, and under magnification, that's faster and trails out exposures, so a counter-rotating mount with a motor becomes required. It allows the view to remain perfectly still and to take longer exposures of the stars, allowing much deeper views with colours. Such a big telescope usually can't fit on consumer Equatorial mounts like that (10" is quite huge), but a 6" can. Usually smaller telescopes with better mounts are used for DSOs (Deep-Sky Objects). Best is to look on r/astrophotography and r/telescopes (there's a pinned buyer's guide), there you'd see many impressive Deep-Sky Objects captured on even smaller telescopes, about 3", their price usually comes from the EQ motorized mount and camera. A great starter is an 8" reflector dobsonian. The larger the aperture, the greater the resolution and light collection. That's a balance of size and power, so to speak. Planets require large aperture, but no motorization, DSOs require a motor-Mount, but can be shot on smaller optics as well.

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Woodrow1701 t1_iucy8vs wrote

What’s up with “space is fake” tards? This is pharqueing oahrrsimm.

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The_Fuher t1_iud9lqh wrote

I feel like 10 inches is just too big. I’m sure you can get the same effect if not better and a much better personality with about 4-5-3 inches

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J3RRYLIKESCHEESE OP t1_iuea4ws wrote

Yeah, I dont think so. Size matters, especially for planetary photography.

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See_U_At_Clarkeyquay t1_iudm69j wrote

this is awesome I'm even proud with my 3m time lapse on my cam

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ammarik t1_iuckjlo wrote

Man I almost imagined an epic irl anime super power. But then read the world telescope :(

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