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Saturn May 18th


Space Cowboy
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This could be the last Saturn of the season for me and seeing was very mushy. Was not going to bother posting this but as its the only one I've done this month decided to put it up.

Flextube dob, spc900 3x tal+extension= f27. 6 min avi in Sharpcap.Taken at 11.15pm.

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I'm just getting used to Saturn and now we're racing away from it.

I'm curious about the bands that you can see on images where the rings pass in front of the planet. The band to the south must be the shadow of the rings. But, there is also a band north of the ring. The rings are illuminated from the north, so I don't think it can be a shadow. I think I saw it visually a few weeks ago, but I'm not certain. Would it be a "surface" feature?

For a while, I thought is was caused by my oversharpening of images (something I'm very guilty of). But, it appears so often that I think it's real.

Cheers,

Tom.

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I'm curious about the bands that you can see on images where the rings pass in front of the planet. The band to the south must be the shadow of the rings. But, there is also a band north of the ring. The rings are illuminated from the north, so I don't think it can be a shadow. I think I saw it visually a few weeks ago, but I'm not certain. Would it be a "surface" feature?

The ring shadow is the thin black line along the rings (above them in this photo; I think south is up in this one) and the planets shadow is on the rings just to the left.

As we are effectively looking from the direction of illumination we can only just see the shadow. It's like taking a flash photo of someone with a flat wall behind - you only see a thin shadow around the person.

All the other markings are cloud bands (like Jupiter has, but with less contrast between them). It just happens that the rings are currently aligned with one of the main cloud bands visible. As the rings open over the next few years this alignment not occur.

Nice photo SB - despite the seeing you've captured some nice detail.

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