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SMARTPHONE LUNAR IMAGES

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#1 LorenBall

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Posted 10 May 2019 - 03:44 PM

Although most of my images are asteroid related, I have enjoyed shooting a few images of our Moon with my Questar-iPhone SE camera.
 

Using Nebulosity 4 to stack the images, I typically use the best 40-50 of 100.

The first image was taken with a 24mm Brandon eyepiece.

The second image was taken with a 16mm Brandon eyepiece and the internal Barlow lens.

M1.jpeg


M5.jpeg



 


Edited by LorenBall, 10 May 2019 - 06:09 PM.

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#2 Terra Nova

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Posted 10 May 2019 - 03:54 PM

Wonderful pics!


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#3 rcwolpert

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Posted 10 May 2019 - 04:09 PM

Although most of my images are asteroid related, I have enjoyed shooting a few images of our Moon with my Questar-iPhone SE camera.
 

Using Nebulosity 4 to stack the images, I typically use the best 40-50 of 100.


attachicon.gif M1.jpeg


attachicon.gif M5.jpeg



 

 

Good job! They’re excellent!


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#4 RyanSem

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Posted 10 May 2019 - 04:11 PM

That's some great quality! Did you record a video and extract the frames that way?


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#5 LorenBall

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Posted 10 May 2019 - 04:16 PM

No, RyanSem.

Rather than using video, I use the Intervalometer in NightCap Camera to take a series of individual images after an initial 3 second delay.

Nebulosity 4 grades, and then stacks the images.



#6 RyanSem

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Posted 10 May 2019 - 04:16 PM

Huh, have not heard of that. Will have to check it out, does a great job :)


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#7 LorenBall

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Posted 10 May 2019 - 04:22 PM

In NightCap Camera, look for "Interval Programer" in settings.

You can choose 1-9 exposures, or you can elect to use an infinite number.

Exposures can be stopped at any point by touching the shutter button.


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#8 LorenBall

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Posted 10 May 2019 - 04:24 PM

Geezz . . . I do not come to Cloudy Nights very often.  

Did I post these images to the correct forum?   


Edited by LorenBall, 10 May 2019 - 04:25 PM.

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#9 RMay

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Posted 10 May 2019 - 05:39 PM

Sure! 👍😊
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#10 spereira

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Posted 10 May 2019 - 06:43 PM

Very nice images, Loren!  Thanks very much for sharing.

 

Do you mind saying what mounting device you are using for your iPhone SE?  I haver that same iPhone, and I've been considering getting the new Celestron NexYZ mount.

 

Thanks!

 

smp


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#11 LorenBall

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Posted 10 May 2019 - 06:58 PM

You are going to laugh when you see the $15 attachment that I use, Spereira.

I have had this for a couple of years, and it works so well that I have not bothered to try anything else.

https://explorescien...rtphone-adapter


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#12 LorenBall

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Posted 10 May 2019 - 07:15 PM

This smartphone attachment looks like it was designed for a Questar.

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  • IMG_0592 4.jpeg

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#13 RMay

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Posted 10 May 2019 - 08:43 PM

Thanks for the info; I just ordered one. I own three other variations of iPhone close couplers and they’re all painfully average to just downright horrible.

Greatly appreciated...

Ron
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#14 LorenBall

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Posted 10 May 2019 - 09:15 PM

Getting the camera exactly centered over the eyepiece is important. 

The first night that I attempted to use my smartphone holder, I attached it to the telescope and eyepiece, and then I tried to attach the smartphone. That was difficult. Actually it was just about impossible. Don't do that.

Now I put the eyepiece in the smartphone attachment, then attach the smartphone. Point the smartphone at a blank sheet of typing paper from a distance of about 18". Look at the smartphone screen with the camera turned on. You will be able to easily center the phone camera and the eyepiece by gently sliding your camera around a bit.

Now you are ready to place the whole contraption into the telescope eyepiece tube. Find a bright star and center it on the screen of your smartphone. Rack the star slightly out of focus and see if everything is round. If not, nudge the smartphone on the attachment, and look to see if the symmetry improves. This may only be a movement of merely 1 or 2 mm. Some attachments have fine adjustments and some do not. If not, do not move the attachment itself. Slide the phone while it is on the attachment. Watch the image of the out of focus star on the screen of the smartphone, and you will have a beautifully centered image with no further problems.

It takes longer to read this than to do it. 


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#15 spereira

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Posted 11 May 2019 - 07:45 AM

Thanks very much for all the info and the photo, Loren!  Much appreciated!

 

smp


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#16 cbwerner

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Posted 11 May 2019 - 10:16 PM

Although most of my images are asteroid related, I have enjoyed shooting a few images of our Moon with my Questar-iPhone SE camera.

First off - great moon shots! :waytogo:

 

Second, are you doing asteroid shots with the same equipment?


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#17 LorenBall

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Posted 11 May 2019 - 10:57 PM

Yes, Chris.

In the last couple of years I have imaged over 400 asteroids with my Questar-iPhone SE. My limiting magnitude is 15+.
 

I post these images and the historical discovery details to Facebook astronomy forums.
 

As I seldom post in Cloudy Nights, I do not know if anyone is interested in asteroid images with a Questar-iPhone.
 

Here is asteroid (7) Iris, magnitude 9.8.

 

"Asteroid (7 Iris) is the fourth-brightest object in the asteroid belt, and the seventh asteroid ever discovered. Identified on August 13, 1847 by the English astronomer J. R. Hind, it is named after the Greek rainbow goddess and attendant to Hera."
SkySafari 6 Pro and Wikipedia
 

Beginning in 2000, I used my 16" Schmidt Cassegrain and SBIG ST-9E cooled ccd to discover more than 107 new asteroids. A few more discoveries will be credited to me by the Minor Planet Center at Harvard as additional data is gathered over the next few years.

 

There are some web links at the bottom of the Wikipedia page. ( I had nothing to do with any of this content. )

 

https://en.wikipedia...i/Loren_C._Ball

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  • 7.jpeg

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#18 cbwerner

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Posted 11 May 2019 - 11:15 PM

As I seldom post in Cloudy Nights, I do not know if anyone is interested in asteroid images with a Questar-iPhone.

Dude . . . 

 

1. That's mindblowing awesome!!! :waytogo:

 

2. We are interested in all things Questar here. I hope you will post here more often. I don't really Facebook, and I know some others don't as well. We *love* seeing this sort of stuff!!! :)


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#19 LorenBall

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Posted 12 May 2019 - 10:54 AM

OK, I will take you at your word, Chris.   smile.gif

I started a thread named "HUNTING ASTEROIDS WITH A QUESTAR-SMARTPHOPNE".

We will see if it attracts the interest of the members.  Thanks.


Edited by LorenBall, 12 May 2019 - 11:56 AM.

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#20 LorenBall

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Posted 12 May 2019 - 01:16 PM

There are a few things that have to swing in your favor if you want to get a crisp image of the Moon.

The telescope has to be perfectly collimated. 

The seeing has to be superb. 

This is the bright double star Castor, Alpha Gemini, magnitude 1.6 and 3.0, separation 5.2 arc ".

 

The Airy disc of each star was steady and obvious visually at about 200X, so I decided to give this close double star a go, and see if I could show the diffraction rings around each star in an image. To my great surprise, it worked out pretty well.
 

I did virtually no processing on this image other than to crop it quite a lot.
 

BEWARE !!! Anyone who attempts to replicate this image with mediocre optics and average seeing is setting themselves up for considerable heartache. 
 

Having said all of that, I encourage our forum members to try this experiment for themselves. It will certainly tell a great deal about your optics, and also about your local seeing conditions.   GLTA   smile.gif
 

89mm f/14.6  Maksutov-Cassegrain telescope, 12mm Brandon eyepiece, 2X internal Barlow lens, iPhone SE camera, NightCap Camera app, 1/25th second exposure, ISO 100, 20 individual images stacked with Nebulosity 4. Processed with Apple Photos.
 

Read about Airy disc here :
 

https://en.wikipedia.../wiki/Airy_disk

Attached Thumbnails

  • Castor s20.jpeg

Edited by LorenBall, 12 May 2019 - 01:33 PM.

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#21 Loren Gibson

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Posted 12 May 2019 - 01:27 PM

Nice pic of the stellar diffraction pattern, showing the tenuous, gossamer characteristic of the diffraction ring.

 

Loren


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#22 LorenBall

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Posted 12 May 2019 - 02:15 PM

All of my amateur astronomy friends, and even my friends at NASA Marshall Spaceflight Center, Huntsville, Alabama told me that I would regret building an observatory on the roof of my house.
 

They unanimously agreed that the seeing would be terrible because of heat rising from the roof. They also were in agreement that vibrations from the house would make imaging lousy.
 

As I am always willing to live with the consequences of my own actions, I ignored them all.
 

Had I listened and followed their advice, I would have never discovered a single asteroid.
 

All in all, Emerald Lane Observatory 843 has exceeded my expectations.   smile.gif

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  • ELO New Lens 2.jpeg

Edited by LorenBall, 12 May 2019 - 02:52 PM.

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#23 cbwerner

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Posted 12 May 2019 - 08:00 PM

That's funny Loren! Common wisdom is often neither common, nor wisdom. Props for following your gut!


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#24 TerryWood

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Posted 13 May 2019 - 11:18 AM

You're living the dream! Beautiful house and observatory! V/R Terry
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