Comet C/2025 N1 (ATLAS)
Taken by Dennis Simmons on July 30, 2025 @
Brisbane, Australia
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
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Date Taken: 2025:08:01 08:35:05
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Details:
On 30th July 2025 I managed to grab several sets of images of Interstellar Comet C/2025 N1 (ATLAS).
Here is a 4-Panel composite of C/2025 N1 (ATLAS) centred on the comet using Tycho Tracker along with a full res 1600x1200 pixel crop of a single unprocessed frame from one of the sets and a stack of the orbital trail.
I had 4 sets of images, 1 set E of the Meridian and 3 sets W of the Meridian.
I used Tycho to blink through each set and only selected those contiguous frames where the comet did not impinge upon a bright field star. I then generated the track in Tycho and saved each result as a FITs file.
After converting and importing into Photoshop, I cropped the region around the comet and up sampled it x2 to generate x4 off 800x600 pixel images, which I assembled as this composite.
An image Link in The Sky X Pro reported an image scale of 0.5630 arcseconds/pixel.
The Tycho Image Evaluation Graph showed FWHM values ranging from 2.13 to 3.43.
Do these results show the nucleus and coma? I don’t know.
Dennis.
Photographer's website:
No URL provided.
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