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Got Enke with my cell phone

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23 replies to this topic

#1 Darren Drake

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Posted 09 August 2019 - 03:08 PM

Taken from a brief video clip of my handheld S9 plus in my 18 inch.  I slightly enhanced with the phone software and there is Enke.  Pretty cool for no effort...

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#2 Redbetter

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Posted 09 August 2019 - 03:46 PM

What are you identifying as Encke's gap in the image?



#3 spencerj

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Posted 09 August 2019 - 03:56 PM

I see it on the left.  Nice job hand-held! 



#4 Darren Drake

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Posted 09 August 2019 - 04:11 PM

It's best visible in the right side.  The left side shows the minima pretty well which is more of a contrast feature 


Edited by Darren Drake, 09 August 2019 - 04:13 PM.


#5 Ken Watts

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Posted 09 August 2019 - 04:36 PM

Hard to pick out as I have never seen it.  Looked up some images on-line, and yep, I think you bagged it! Congratulations.



#6 Redbetter

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Posted 09 August 2019 - 04:55 PM

I don't really see it.  There are enough artifacts to the image (such as the ring crossing diagonal/arc on the left and the misaligned vertical pixels at the very edge on the left) and atmospheric chromatic dispersion that I would call the hint on the right as ambiguous at best. 


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#7 kfiscus

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Posted 09 August 2019 - 10:11 PM

Good job.  (I clicked on this thinking of his comet, though...)



#8 azure1961p

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Posted 16 August 2019 - 08:30 AM

I see what looks like it. I'll say one thing - put this image in the latest REGISTAX and click on RGB ALIGN in the tool box window on the right and you can collapse the red and blue into one single image.  You'll have some residual fringing since it's so off the chart in this image but it'll go a long long way.

 

Pete



#9 Darren Drake

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Posted 16 August 2019 - 07:56 PM

I dont know how to do that Pete but your welcome to try..



#10 Cpk133

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Posted 17 August 2019 - 12:25 PM

Taken from a brief video clip of my handheld S9 plus in my 18 inch.  I slightly enhanced with the phone software and there is Enke.  Pretty cool for no effort...

Must have been one heck of a view because my cell phone pics never look even remotely close to the actual view and from Chicago!  Thought I'd see Florida or Australia in your profile.  Which 18" were you using, I see two in your profile.



#11 Darren Drake

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Posted 18 August 2019 - 02:19 PM

Thanks I was using the Night sky 18.  The view was from my astrocamp site in Michigan.   I run an astronomy camp there every summer..

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Edited by Darren Drake, 18 August 2019 - 02:24 PM.

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#12 luxo II

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Posted 21 August 2019 - 05:37 PM

I see the Cassini gap, not Encke...

#13 Darren Drake

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Posted 22 August 2019 - 01:00 PM

Here is another shot showing it on the left side.  It's not quite as clean but the definition is good where it does appear...

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Edited by Darren Drake, 22 August 2019 - 01:01 PM.

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#14 Richard Whalen

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Posted 23 August 2019 - 12:17 AM

Your seeing the minima, not the gap at least in the image. 


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#15 Boom

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Posted 24 August 2019 - 01:17 PM

If a cellphone snap looks that good, I can't imagine how nice it was in the EP. Jealous of those lucky enough to have looked through that scope.

#16 Asbytec

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Posted 30 August 2019 - 09:09 PM

Darren, my jury is still out. But congratulations, we can bet the visual view was nothing short of outstanding. We can extrapolate from your image. Little doubt the Enke division might have been visible in your 18", and I understand the excitement over the possibility of seeing it and wanting to capture it. I've experienced that same excitement, but unfortunately I had to rule it out as a diffraction artifact. The likelihood of seeing it in a 6" aperture in the most perfect seeing was just not high enough to feel the smallest amount of (un)certainty. 

 

The only thing that gives me cause is the elevation of Saturn and seeing. Seeing Enke requires larger aperture, you have plenty of that, and good seeing. And a bit of luck while waiting for it to show. So, it is certainly possible. But, when I look at the cellphone images, I see Cassini is not well defined. In order to process Enke, I would think the image would have to be much cleaner and Cassini much sharper. My guess is, you may well have seen Enke visually, but actually capturing it on a cell phone by hand? Not impossible, I guess, but it's more likely the Enke minimum. Even Damien Peach needs good seeing and a nice camera to image it.

 

I believe you may have seen it visually, but I doubt it's visible in the cell phone image. If it's anything at all, it's probably the more readily seen Enke minimum. 


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#17 Darren Drake

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Posted 08 October 2019 - 09:41 PM

Ok this one is a bit confusing.  I had worse seeing tonight than before and this image overall is very poor but that looks like the Enke division on both sides but especially the left side.   Or will some claim this is not the division but the Keeler gap?  

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Edited by Darren Drake, 08 October 2019 - 09:41 PM.

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#18 EJN

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Posted 08 October 2019 - 10:08 PM

Looks more like processing artifacts if you used any sort of sharpening, I see the same type

of artifacts if you over-apply unsharp mask in Photoshop. Also the video in iPhones uses

compression - a lot - so any sharpening is also sharpening compression artifacts.



#19 Darren Drake

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Posted 09 October 2019 - 05:18 AM

The only processing done was a slight enhancement of contrast with the phone software.  



#20 Darren Drake

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Posted 09 October 2019 - 07:39 AM

Given the well defined nature of the Cassini division itself I'm quite convinced the enke is seen here and is not some random artifact...


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#21 payner

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Posted 09 October 2019 - 06:08 PM

That, to me, looks like it may be the Encke Minima. I do not believe it is the Encke Gap, for one thing, it is too far inward (and presents too wide in width relative to the Cassini Division) of the A-Ring to be the gap. But given the coarseness of the image, I'm not sure, it may simply be an artifact of the image.



#22 bikerdib

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Posted 09 October 2019 - 06:43 PM

I agree with Randy, too far inward and too wide.  Nice capture for a cell phone camera though.



#23 AJK 547

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Posted 10 October 2019 - 07:15 PM

Gentlemen, I found a couple of images on the ‘net that seem to define the Encke Gap vs the Encke Minima  Honestly, to me, when I look at Darren Drake’s cellphone images I do discern the Encke Gap...  

 

FWIW, Darren has let me look through the 18” Dob he discusses and the entire optical path is truly excellent...

 

Soooo, I see both Encke gap and the ‘Minima’ in the granular cellphone image.  Is it just wishful thinking?  Help me out here since Darren and I have discussed this topic before.

 

For grins, I Googled ‘Damian Peach Encke’ and got:

 

The Famous Rings

The rings are without doubt Saturn’s most well-known, and well-observed feature, ever since Galileo first turned his small telescopes on the Planet back in 1610. The rings are divided into 5 main rings. There are two main rings, called rings A and B, of which B is the brightest. Then ring C or the Crepe ring, which is inside the B ring and appears very dusky. Rings D and F are faint, and not observable to amateurs. Two main divisions dark division are observable to amateurs. The Cassini Division (a 4,700 km gap) which separates the bright A and B rings is easily observed in Telescopes as small as 2.4 inches (60mm) when the rings are well presented, as is currently the case. The other division (which is located near the outer edge of Ring A) is know as the Encke Division, a small 325km gap actually discovered by Astronomer, James Keeler in 1888. The division is much smaller, and will require a telescope of at least 9 inches (235mm) aperture, and very steady atmospheric seeing conditions to resolve. Though the rings our very wide (almost 300,000km) they are extremely thin (just 1 km) making them almost invisible when they are presented edge on to us, as was last the case back in 1995.

 

Thanks in advance.
 

 

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Edited by AJK 547, 10 October 2019 - 08:29 PM.

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#24 Magnetic Field

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Posted 12 October 2019 - 02:24 PM

Taken from a brief video clip of my handheld S9 plus in my 18 inch.  I slightly enhanced with the phone software and there is Enke.  Pretty cool for no effort...

They say, it is North America.

 

But Chicago is only 41 degrees latitude. Compare this to London which sits at 51 degrees.

 

So, Saturn is 10 degrees higher in Chicago.

 

 

Really a very good shot.

 

Aperture rules not matter what the flat earthers in the refractor forum make of it.


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