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Thread: M41 - Little Beehive Cluster

  1. #1
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    Default M41 - Little Beehive Cluster



    My second image from January 12th was M41:

    https://www.astrobin.com/389149/?nc=user

    55mm - 250mm Canon Zoom Lens at 250mm
    Backyard EOS
    Celestron Nexstar SLT GoTo mount (Alt/Az)

    20 x 15 second subs
    Used a friend's Canon T5 (1200d) just swapped out my T3 for his T5
    1600 ISO
    f5.6

    Stacked and stretched in DSS and GIMP.

    I think my Alt/Az mount is very equal to imaging clusters (as opposed to nebula and galaxies). Do you think that increasing my exposure time would help much in improving on this image?

    Thank you!

    Jon
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    Default Re: M41 - Little Beehive Cluster

    Nice image Jon -

    I believe you can improve the image by just boosting the color in the stars. The color is there, but, it needs to be brought out.

    When I first started processing astrophotography (AP) images I used GIMP. Because GIMP is quite similar to Photoshop, I found a series of tutorials by Doug German aimed at teaching how to use Photoshop for beginning AP processing. I was able to follow the tutorials using GIMP. Maybe you can do the same.

    The link below is to one of his tutorials (not one of the six beginners tutorials) showing how to create and use a Star Mask.

    https://www.youtube.com/watch?v=UZlpDFsugYk

    The Star Mask is a mask that protects everything except the stars. Once you have a star maks you can apply it to the image and then boost the color saturation. This will bring out the color in the stars while leaving the background untouched.

    Hope this helps.

    Steve
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    Default Re: M41 - Little Beehive Cluster

    If you want longer exposures and you are relatively proficient at using a saw and a drill then you might want to think about putting one of these together for your mount and camera.
    Article: Building an EQ Wedge To Capture Nightscape Images

    Cheers,
    JT
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    Default Re: M41 - Little Beehive Cluster

    Quote Originally Posted by STEVE333 View Post
    When I first started processing astrophotography (AP) images I used GIMP. Because GIMP is quite similar to Photoshop, I found a series of tutorials by Doug German aimed at teaching how to use Photoshop for beginning AP processing. I was able to follow the tutorials using GIMP. Maybe you can do the same.

    The link below is to one of his tutorials (not one of the six beginners tutorials) showing how to create and use a Star Mask.

    https://www.youtube.com/watch?v=UZlpDFsugYk
    Thanks for the YouTube video. I was going through Charles Brakens Deep Sky Imaging Primer, but sometimes it is easier to learn through YouTube! Now that I have some worthwhile images, it is time to start learning more about processing those images.

    Thank you!

    Jon
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    Canon Rebel T3 (1100D) DSLR
    Wife's Scope - Sky-Watcher 12” GoTo Collapsible Dobsonian

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    Default Re: M41 - Little Beehive Cluster

    Quote Originally Posted by jaetea View Post
    If you want longer exposures and you are relatively proficient at using a saw and a drill then you might want to think about putting one of these together for your mount and camera.
    Article: Building an EQ Wedge To Capture Nightscape Images

    Cheers,
    JT

    Yeah I saw that same post about building a wedge ... I just have not gotten around to it yet.

    Thank you!

    Jon
    My Equipment - Celestron 130SLT (6 inch) goto reflector) and Orion SkyQuest XT8 (8 inch classic dob)
    Canon Rebel T3 (1100D) DSLR
    Wife's Scope - Sky-Watcher 12” GoTo Collapsible Dobsonian

 

 

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