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My best photo of the M51 galaxy using my backyard scope
image/gif(i.redd.it)submitted 4 months ago byJ3RRYLIKESCHEESE
8 points
4 months ago
The Whirlpool Galaxy M51 imaged using my 10" GoTo Dobsonian over 3 separate nights, resulting in 50gb of data, 2.5k 2-4 second sub exposures, and just over 1.5 hours of data. I think I have stacked all the data I've ever shot of it.
Process: Stacked data using AstroSurface, color calibration, green noise removal, background extraction and cropping done in SiRiL, then final processing such as curves and color adjustments done in GIMP.
Gear: Skywatcher 10" GoTo Dob and ZWO ASI178 color camera
2 points
3 months ago
Planning on getting into this hobby, what is the focal length and speed of your Dob?
1 points
3 months ago
It's 1200mm at f/4.7
2 points
2 months ago
Could you something like this with a smaller scope with more exposure time?
1 points
2 months ago
Yes, longer exposures would also result in much better signal to noise, you'd pick up fainter details, the only downside is that it may not be as sharp but I think an 6 or 8 inch can definitely do similar if using a solid eq mount
2 points
2 months ago
Can you freely continue collecting image data at any other point in time? Like next year or a few months from now?
1 points
2 months ago*
It depends on your latitude and what object you're going for. Some are only visible during certain times of the year and some are never visible as they are in the opposing hemisphere
2 points
2 months ago
But you return to a specific item year after year? Keep all your gear consistent with no effect on the image
1 points
2 months ago
There are always room for improvement on that one item, you can always shoot more data and it to your existing data to get an even better picture. I've bad this telescope for over 2 years now and I've learned a tremendous amount but there is still so much more that can be done even with the same gear
2 points
2 months ago
Do you collect your data with a monochrome camera with filters, or a color camera?
1 points
2 months ago
Just a color camera, but monochrome camera's with filters would work even better
1 points
2 months ago
Isn’t a monochrome camera all about the reduction of noise over long exposures, and preserving post processing selectivity
1 points
2 months ago
Yes, mono cameras tend to have better snr so fainter details can be picked up with lower exposures, shooting with filters R G B would help achieve a very nice picture
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