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FastFourierTransform
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Astrophotography

20 Aug 2017 13:25

I'm just amazed of what my mobile just did!

I've captured from Madrid the Orion constellation near dawn with my phone. I putted ISO to 1600 and obturation time to 1/2 sec. This is what I got:

Image

After that I used the digital zoom of the phone and took this close-up of the orion belt:

Image

Do you see that in the middle of the frame? Have a closer, look zooming in the same image:

Image

That blob is the Orion Nebula!!!!
I really couldn't believe it, so I took several pictures like this one to see if it was just a random fluke a little stronger than the sorrounding noise of the image but the same structure apperead in all the photos. Also the position is perfect match if you compare with a celestial chart.

I've imaged the orion nebula hand helding my phone, without telescope nor any extra component. Just my phone :D

Maybe is not that amazing but for me it has been an emotional rollercoaster.

I think the lower blob in the image is Iota Orionis and the upper the nebula itself
 
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Spacer
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20 Aug 2017 14:28

FastFourierTransform, wow! pretty cool! even in the desert in my trip my phone couldn't capture any stars. it was too blurry and dark in the area.  :)
what phone do you have?
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-Andre Gide
 
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FastFourierTransform
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20 Aug 2017 14:45

Spacer, Thanks!

I have a "BQ Aquaris U". And the app for the camera is the native one. It allows you to control manually the focus, the ISO and the obturation time. But I never imagined it could do this without any help of a telescope or something else.
 
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Fireinthehole
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21 Aug 2017 03:58

Spacer, I'm happy that you got to see the starry sky of the desert! Seeing a sky that dark is kind of addictive. :) 
 
A-L-E-X
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21 Aug 2017 16:40

I wish the sky was like that everywhere.  Alas, there are way too many people on the planet and way too much pollution because of them.
 
A-L-E-X
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21 Aug 2017 16:41

FastFourierTransform, wow! pretty cool! even in the desert in my trip my phone couldn't capture any stars. it was too blurry and dark in the area.  :)
what phone do you have?
Spacer I saw a site where the photographer used a camera phone to capture the milky way!
 
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HarbingerDawn
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22 Aug 2017 22:32

Some photos that I already posted in the eclipse thread:
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SonofStars
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23 Aug 2017 02:25

Here is an image of the Sun I took on Sunday, August 20th. I did not take my equipment with me to view the solar eclipse as I did not want to have any potential distractions keeping me from enjoying the thrill of totality. I did, however, take a few pictures with my phone, but they nowhere compare to the other photos that have been shared on the forum! 
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DoctorOfSpace
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23 Aug 2017 08:47

HarbingerDawn, those pictures are really good.

SonofStars, what sort of equipment were you using?
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SonofStars
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23 Aug 2017 11:40

SonofStars, what sort of equipment were you using?
For the solar pictures, I use a Lunt 60THa/B1200CPT telescope with an Orion Atlas Pro mount in Alt-Azimuth mode. The capture device is a ZWO 174MM camera. Surface and prominence data are collected separately and combined using Photoshop. Both surface and prominence data are stacked and enhanced slightly using AutoStakkert! and Registax.
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An'shur
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28 Sep 2017 12:27

I have a Canon EOS 1200D. Is it possible to photograph the Sun without risk of burning the chip or other internal systems, and how could I accomplish it? I am interested in two kinds of photos. 

1) At first, photographs in which the Sun itself is not my primary target, like sunsets, reflections on calm water surface and possible reflections at window panels.

2) At second, photographs focused at the Sun. like partial solar eclipses, photosphere and sunspots. In such case, Sun can be really high in the sky, meaning that most of it's light gets through the atmosphere. Would very short exposure be sufficient for safety, or would it require filters, like baader foil?
 
A-L-E-X
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Astrophotography

28 Sep 2017 13:22

I also have a question.  Is it possible to do afocal photography with a pair of binoculars? I want to do photography of M31 with the entire galaxy in one FOV and the only instrument I have with a field of view wide enough to do so is a pair of binoculars.  So is this better done with a camera with its lens attached and the binoculars on a tripod?
 
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Watsisname
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02 Oct 2017 03:15

1) At first, photographs in which the Sun itself is not my primary target, like sunsets, reflections on calm water surface and possible reflections at window panels.
Yes, I think this is pretty safe.  I've taken many photos of the Sun near sunset over the years with my Canon Rebel T3 between 70 and 300mm and suffered no ill effects.  I wouldn't go much beyond that for the zoom, though (like >500mm and I might get nervous).
I should warn though that damage can occur at lower zooms in some circumstances. Midtskogen linked an article showing cameras destroyed by aiming at the partial phases of a solar eclipse -- many apparently because the light was focused on the iris.
  
At second, photographs focused at the Sun. like partial solar eclipses, photosphere and sunspots. In such case, Sun can be really high in the sky, meaning that most of it's light gets through the atmosphere. Would very short exposure be sufficient for safety, or would it require filters, like baader foil?
This gets more risky, depending on how much zoom you're using.  If the Sun is filling most of the frame, you may get quite a bit of heating inside the camera.  I would definitely recommend using filters in this case.
 
A-L-E-X
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Astrophotography

06 Oct 2017 13:29

Question, what is the maximum focal length to use to capture M31 and have it fill the frame edge to edge?  I found a site that converts focal length to angular size and found that 800mm=3.1 degrees- would that be the right effective focal length to use?
 
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HarbingerDawn
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17 Oct 2017 08:05

Old picture featuring comet C/2014 Q2 (Lovejoy), which I don't think I ever shared before

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