APOD: Stereo Jupiter near Opposition (2024 Dec 05)

[APOD Robot]

Stereo Jupiter near Opposition

Explanation: Jupiter looks sharp in these two rooftop telescope images. Both were captured last year on November 17 from Singapore, planet Earth, about two weeks after Jupiter's 2023 opposition. Climbing high in midnight skies the giant planet was a mere 33.4 light-minutes from Singapore. That's about 4 astronomical units away. Jupiter's planet girdling dark belts and light zones are visible in remarkable detail, along with the giant world's whitish oval vortices. Its signature Great Red Spot is prominent in the south. Jupiter rotates rapidly on its axis once every 10 hours. So, based on video frames taken only 15 minutes apart, these images form a stereo pair. Look at the center of the pair and cross your eyes until the separate images come together to see the 3D effect. Of course Jupiter is now not far from its 2024 opposition. Planet Earth is set to pass between the Solar System's ruling gas giant and the Sun on December 7.

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[VictorBorun]

cross-eye stereo is ok

Theoretically it can not be true in the following 2 ways:

1) the real Jupiter is not a glowing ball in a dark room; it is illuminated from by compact source, Sun, and in a stereo its half-shaded sides should show a little

2) the real Jupiter is not a still life painted on a ball canvas; it is living with storm winds and in 15 minutes interval some false 3d details must show

In fact I can not see those kinds of faults in the posted pic

[DirkMeyer]

Hi APOD-Team,

Thank you for your great site!

I just tried the Jupiter stereo view and it turned out, that the images need to be switched to get the 3D impression. The left image needs to be on the right hand side. This can be also seen by comparing the two perspectives.

In order to achieve the 3D impression I copied the two images onto a new blank black canvas (e.g. a MS word Document) and shifted them much closer together (10 cm distance). I also have put on a pair of reading glasses and went rather close to the screen.
Try it yourself.
Maybe you want to fix it?

Kind regards
Dirk

[DirkMeyer]

I just measured... on my screen I have put the two images at a distance of 6 cm center to center, each having a 5,5 cm diameter, so 0,5 cm gap in between.
That will work much better then the previously estimated 10cm distance, as it comes closer to the eyes distance of approx. 7 cm.
Kind regards
Dirk

[Locutus76]

I can’t see the 3D effect. Shouldn’t the images be identical to get 3D? Now I just see 2 different Jupiters overlapping, but not matching up. For example, the red spot has moved further to the left on the left image, so either the spots don’t line up when crossing my eyes, or the whole Jupiter disk doesn’t…

[johnnydeep]

Yeah, I don't think this stereo image works. I can't get the two images to completely overlap.

[johnnydeep]

I just measured... on my screen I have put the two images at a distance of 6 cm center to center, each having a 5,5 cm diameter, so 0,5 cm gap in between.
That will work much better then the previously estimated 10cm distance, as it comes closer to the eyes distance of approx. 7 cm.
Kind regards
Dirk

Please post your new image! Use the attachment feature of the interface where you can upload your own image.

[johnnydeep]

I can’t see the 3D effect. Shouldn’t the images be identical to get 3D? Now I just see 2 different Jupiters overlapping, but not matching up. For example, the red spot has moved further to the left on the left image, so either the spots don’t line up when crossing my eyes, or the whole Jupiter disk doesn’t…

Agreed.

[aildoux]

Thanks for this. Cross 3D is my favorite.

[Chris Peterson]

I just measured... on my screen I have put the two images at a distance of 6 cm center to center, each having a 5,5 cm diameter, so 0,5 cm gap in between.
That will work much better then the previously estimated 10cm distance, as it comes closer to the eyes distance of approx. 7 cm.
Kind regards
Dirk

Please post your new image! Use the attachment feature of the interface where you can upload your own image.

The image as posted is an excellent cross-eyed stereo pair. There's nothing wrong with it, nothing that needs to be changed.

[johnnydeep]

I just measured... on my screen I have put the two images at a distance of 6 cm center to center, each having a 5,5 cm diameter, so 0,5 cm gap in between.
That will work much better then the previously estimated 10cm distance, as it comes closer to the eyes distance of approx. 7 cm.
Kind regards
Dirk

Please post your new image! Use the attachment feature of the interface where you can upload your own image.

The image as posted is an excellent cross-eyed stereo pair. There's nothing wrong with it, nothing that needs to be changed.

I had a feeling you'd say that. I guess I just can't see these "cross-eyed" pairs of images.

[Ann]

Please post your new image! Use the attachment feature of the interface where you can upload your own image.

The image as posted is an excellent cross-eyed stereo pair. There's nothing wrong with it, nothing that needs to be changed.

I had a feeling you'd say that. I guess I just can't see these "cross-eyed" pairs of images.

Me neither. I've never been able to see them as 3D images.

Ann

[florid_snow]

For those that can't see it, the major recommendation I'd like to suggest is standing several meters away from your computer screen. That makes it much easier on your eyes. Then you slowly walk forward to see more detail. If you still can't get it, sorry because it looks awesome to me! Thanks APOD!

[futurejohn]

Is anyone else getting the illusion that the image goes into the screen rather than out?

[Chris Peterson]

Is anyone else getting the illusion that the image goes into the screen rather than out?

Are you sure you're using cross-eyed viewing and not parallel-eyed viewing? This stereo pair is created for the first, and if you view it the second way it will certainly look concave rather than convex.

[johnnydeep]

The image as posted is an excellent cross-eyed stereo pair. There's nothing wrong with it, nothing that needs to be changed.

I had a feeling you'd say that. I guess I just can't see these "cross-eyed" pairs of images.

Me neither. I've never been able to see them as 3D images.

Ann

Hey, I finally got it to work, though I'm still not sure of the difference between the cross-eyed stereo images and parallel-eyed ones.

I maxed out the brightness on my display, and with my head about 2 ft away, focused on my thumb while held close to the screen between the two images, then maintained that focus while slowly bringing my thumb closer to my face.

[futurejohn]

Is anyone else getting the illusion that the image goes into the screen rather than out?

Are you sure you're using cross-eyed viewing and not parallel-eyed viewing? This stereo pair is created for the first, and if you view it the second way it will certainly look concave rather than convex.

Ah, that's what I was doing! Crossing my eyes results in the expected illusion. I've been doing it wrong for years!

[Chris Peterson]

Is anyone else getting the illusion that the image goes into the screen rather than out?

Are you sure you're using cross-eyed viewing and not parallel-eyed viewing? This stereo pair is created for the first, and if you view it the second way it will certainly look concave rather than convex.

Ah, that's what I was doing! Crossing my eyes results in the expected illusion. I've been doing it wrong for years!

Not wrong. Just the wrong approach for some stereo pairs. Many times they are laid out for parallel eye viewing. Just got to try it both ways if necessary.

[Locutus76]

Oh I was parallel viewing. Cross-eyed actually works. Never seen a 3D cross-eyed image before though, so that’s where I went wrong. Prefer the parallel ones though…