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Thread: North American Nebula

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    Default North American Nebula

    Below is a 60 second exposure of the North American Nebula in the constellation Cygnus. The nebula is the very dim, indistinct patch of purplish glow in the left center of the frame vaguely resembling the outline of North America (surprise, surprise ). This image was taken with the E-500, 150mm @ f/2, 60 second exposure, ISO 100... piggybacked on top of a telescope for tracking . The only star in the frame that was visible with the naked eye from my highly light polluted metropolitan location was the bright star Deneb (right center). Not really a great astrophoto but I thought it was interesting enough to share.

    Fred

    (click image for larger version... 679Kb)

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    Default Re: North American Nebula

    Very nice. Someone else in the forum was also posting astrophotography images but created from stacked exposures but I can't remember who right now.
    Good shooting,
    English Bob

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    Default Re: North American Nebula

    Quote Originally Posted by E B View Post
    Very nice. Someone else in the forum was also posting astrophotography images but created from stacked exposures but I can't remember who right now.
    Thanks for the comment E B. I believe that was 3dpan who did the stacking. I've never tried that myself but it sounds interesting.

    Fred

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    Question Re: North American Nebula

    Fred,

    Could you show us a picture of how the camera is mounted on top of the telescope?

    Randy

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    Default Re: North American Nebula

    Quote Originally Posted by the beast View Post
    Fred,

    Could you show us a picture of how the camera is mounted on top of the telescope?

    Randy
    Here you go Randy... just a quick snap but you can get the drift of how it is mounted.

    Fred


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    Wink Re: North American Nebula

    Hello Fred,

    Thank you for the picture! (I teach high school astronomy and gives me a few ideas for the class)

    Randy

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    Default Re: North American Nebula

    Nice shot! Actually, I was looking at the EXIF data for the shot of your rig, Is that the built in flash of your E-300? It looks nice. Or did you use the Flash at all?


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    Default Re: North American Nebula

    Quote Originally Posted by the beast View Post
    Hello Fred,

    Thank you for the picture! (I teach high school astronomy and gives me a few ideas for the class)

    Randy
    Your most welcome Randy. Good luck with your high school astronomy class. Something like that could be a lot of fun for the kids.

    Fred

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    Default Re: North American Nebula

    Quote Originally Posted by Jamie View Post
    Nice shot! Actually, I was looking at the EXIF data for the shot of your rig, Is that the built in flash of your E-300? It looks nice. Or did you use the Flash at all?

    Hi Jamie,

    Thanks for your kind comment. Yes, that is just the built in flash on the E-300.

    Fred

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    Default Re: North American Nebula

    Nice job of showing how dense the stars are in our galaxy. Thanks for sharing this very interesting photo. It really makes you think ....

    Julie

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    Default Re: North American Nebula

    Quote Originally Posted by windsprite View Post
    Nice job of showing how dense the stars are in our galaxy. Thanks for sharing this very interesting photo. It really makes you think ....

    Julie
    Thank you for looking and commenting Julie. It is rather amazing how many stars can be captured in one frame.

    Fred

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    Default Re: North American Nebula

    Nice pic Fred,

    That's a serious looking 'scope there.
    See my latest thread in "Chit-Chat" called "Here's a Neat Gadget".

    In my astro pix, even with just a wide angle lens, I was amazed at the number of stars that were resolved, far more than I could see even with a dark sky. And even more than on my star charts.

    Cheers,
    Alec

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    Default Re: North American Nebula

    Quote Originally Posted by 3dpan View Post
    Nice pic Fred,
    Thank you Alec!

    That's a serious looking 'scope there.
    It's an old Celestron 11", 2800mm FL, f/10

    See my latest thread in "Chit-Chat" called "Here's a Neat Gadget".
    That is indeed a neat gadget! Thanks for posting that.

    In my astro pix, even with just a wide angle lens, I was amazed at the number of stars that were resolved, far more than I could see even with a dark sky. And even more than on my star charts.
    How right you are!! To illustrate your point, I reprocessed the image to show an approximation of the stars that are shown on my "Tirion Sky Atlas" charts which go down to the 8th magnitude. The unaided human eye can only see down to the 6th magnitude (6 times brighter than the dimmest stars shown here). I follow this with a repost of the original image processed to bring out fainter detail for comparison. The light gathering power of the 150 f/2 over a 60 second exposure is rather amazing!

    Thanks again for looking,

    Fred




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    Default Re: North American Nebula

    A good illustration Fred.

    I find the enormity of space so difficult to comprehend. The more you look, the more there is to see. And the scale of dimensions. Trying to imagine just how far a light-year is, and finding there are galaxies billions of light-years away.
    Wow, It makes me feel really insignificant. Ants on an elephant are not even close.

    Pehaps it's fortunate our lifespans are so short.
    From the Southern Hemisphere we see a couple of fuzzies called the Large, and Small Magellanic Clouds, adjacent galaxies.
    Astronomers reckon the gravitational pull of our galaxy is sucking the Magellanic clouds into ours. Talk about chaos as that happens. Fortunately not in my lifetime.

    Cheers,
    Alec

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