I recently made this image of Jupiter with my Celestron C5 and ASI 120MC-S camera. I'm happy with this image, but I'm wondering if I can push it a bit further, especially on the moons. 30s video at 30 fps, 35% stacked. What capturing tactics can I use?
My freaky sharp C5 was like that.
https://preview.redd.it/vyxtw49fxu7g1.jpeg?width=600&format=pjpg&auto=webp&s=971495a7c1a3189f686cca3ec74c9a00c8fdc422
Did you catch a transit? Nice job with that C5 👍🏼
Edit: or maybe I mean shadow transit
Great shot
I imagine you already did processing in Registax or Wavesharp
Is that the shadow of the moon, or a transition? on the lower right? Zoomed in?
Nice shot
Did you use a barlow? If so, what power (2x, 3x, etc.)? Your camera pixel size is 3.75um. Applying the rule of 5 x pixel size (3.75) = f/18.75. The C5 is f/10 "natively" and f/20 with a 2x barlow which is pretty close (so, very slight undersampling). Honestly, I'd say it comes down to "seeing". Go to church and pray for better seeing conditions?
Thanks. I forgot to mention, I screwed barlow on (I think its 1.5X). With normal barlow setup, 2X, it was getting blurry
I assume by "blurry" you mean the image preview/live view in whatever capture program you use (SharpCap, FireCapture, ASICap, etc.) was blurry?
If you used a 1.5 barlow then, you were only at f/15 and were undersampling a bit (again, the camera's "sweet spot" was f/18.75 (~f/19). And a 2x barlow would get you to f/20 very slight oversampling.
On a night when seeing is average to less than average, undersampled is usually preferable to oversampling - brighter planet, but fewer crisp details (softer).
On a night when seeing is above average, being a bit oversampled would likely improve the result a bit so you might want to go with the 2x barlow.
So, really it comes down to "seeing" conditions - which are out of your control...and making the best of them.
Focus as best you can, help your camera out by narrowing the region of interest (no reason to capture all that dark space around the planet), maybe check that binning is set to 1x1 - if it was set higher (eg. 2x2, 3x3,) it can look like poor focus because, in essence, each pixel on the camera is "merged" or combined with neighboring pixels into a larger "super pixel" -- you can gather more light (object is brighter), but you lose some resolution (sharpness).
Thanks alot
With a c5 thos is really good. No idea how you could improve, maybe more data but idk if that would make much of a difference.
Beautiful!
Just amazing.
Very good capture
Nice! Thats the shadow of a moon on the surface right? Wanna make sure im not seeing stuff
Thats a nice capture
Bella.👍