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Messier 33

Messier 33

Object Name:  Messier 33, also known as NGC 598
Object Type:  Spiral galaxy
Constellation: Triangulum
Acquisition Date: September 1, 2016
Location: Tierra del Sol, San Diego County, California
• Imaging Scope – Takahashi Epsilon 160
• Imaging Camera – SBIG STT-8300
• Filters – Baader 36mm unmounted red, green and blue filters
• Mount – Astro-Physics 900GTO
Camera Control – The Sky X
Guider control – The Sky X
Acquisition Details:
• Exposures – 10 x 360 seconds for each of the red, green and blue filtered subexposures.
PixInsight and Photoshop CC were used to process the images.
• PixInsight –
⁃ Image calibration, alignment and integration
⁃ MultiscaleLinearTransform on RGB image for noise attenuation
⁃ HistogramTransformation for histogram adjustment
⁃ CurvesTransformation for color saturation boost
• Photoshop –
⁃ additional adjustments to histogram and color balance
Thanks for looking.  Click on the image below for a higher resolution version.

Messier 33
Messier 33
Posted in CCD Camera Image, Galaxies


  1. Steve Armen

    Hi Dean, this rendition of m33 looks fabulous! The star colors look great as does the background. I’ve seen a couple of your posts on the AP forum on IO groups. Looks like you are waiting for a mach 2? I’m on the list reportedly early in the 2nd build. Sold my mach 1 before COVID 19 flared up started so now I’m without any mount to do imaging. Now it looks like I won’t have a mount until summer or next fall or even next year. I’m looking to possibly pickup a Tak EM-11 used that would be sellable when a mach 2 if finally available to use with the 92mm Stowaway. I’ll be doing wide field for a while if I can find something.

    clear skies,

  2. dean

    Hi Steve, thanks for taking a look. This is one of the last few CCD images I took with the STT-8300 before switching to the ASI1600MM.

    Yes, I am on the Mach2 list for the first build. I have been told that I am about halfway down the first run. I don’t expect to have the mount before June 2020.

    We will see how well they recover and get to the second group.

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