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Jupiter rotation over 1 hour
By
joachimong, in Imaging Challenge #2 - Jupiter (Now Closed)
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By Cosmic Geoff
Here is an image of Jupiter, taken around 6am on 15 Feb with my C8, ASI120MC, +ADC, processed in Registax6 from around 30% of 3000 frames.
I am fairly pleased with it considering that the altitude of the planet was only about 12 deg. and the seeing looked bad when I tried to focus on a star. And it shows the Great Red Spot.
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By Cosmic Geoff
I had another go at imaging the shrinking Mars, this time without and with a x2 Barlow lens. The results are better with the Barlow, which is what one is led to expect. For whatever reason (probably bad seeing and/or low planets) when I tried a Barlow previously it just made the blur bigger. Equipment: C8 SE, ASI120MC, x2 Skywatcher kit Barlow element screwed directly into 1.25" barrel of the ZWO camera. This does seem to give x2 in practice. I did not use an ADC on the grounds that I shouldn't need one with Mars at an altitude of over 40 degrees.
3000 image video captured with Sharpcap. Processed in Registax6. I found that the Sharpcap exposure histogram did not appear to work on such a small image, so had to estimate the exposure. Yes, optical ADC correction would be better, but the dispersion seemed very small. Blowing up the image x2 in Registax showed a small colour fringe, which I took out with a single point of correction.
The images show some surface detail though the contrast is low (if you are using a flatscreen try viewing from below: 🙄) Mare Sirenum, with Mare Acidalium just discernible foreshortened at upper right.
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By Cosmic Geoff
Here is an image of Mars I made on 9 Jan this year, with a C8 SE, and ASI120MC camera. The images are rather small (around 7" dia). Mars is now much higher in the sky than at opposition, so it seemed worth taking a few farewell images as it diminishes in size. Captured with Sharpcap.
I did not use the ADC - the images are corrected for AD in the processing in Registax. This is from a run of 3000 images. I have included a x3 Photoshop zoom of the same image to indicate the size of Mars at opposition on the same scale. I was quite pleased to record some surface detail, corresponding with the position of Syrtis Major. If I'd had more time, I could have tried some images using a Barlow lens. I have just discovered that I can unscrew the lens section from a Skywatcher x2 Barlow and screw it onto the 1.25" nosepiece of the ASI120MC, which will give a more modest zoom (I think).
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By floastro
Hi all,
This is my first shots of Saturn and Jupiter taken the last summer with my new ZWO ASI178MC.
Equipment :
-Sky-Watcher Maksutov-Cassegrain Ø150mm /1800mm
-Sky-Watcher NEQ5 PRO Goto mount
-ZWO ASI178MC camera
-ZWO ADC corrector
-Pierro-Astro electric Focuser Focus v2 controlled by the PC station in ASCOM.
-Imaging Software : FireCapture
-Integration Software : Autostakker 3
-Processing Softwares : PRISM v10 / Registax 6 / PhotoShop CS6 / Lightroom 6
- Wide Gammut Monitor for processing : NEC SpectraView Reference 272 (27") calibrated with x-Rite i1 Display Pro colorimeter
Saturn :
Sequence of 11,000 images.
8,800 added with a sub-exposure of 88ms/image.
Focal length : 1800mm
Jupiter :
Sequence of 6,000 images. 4,800 images added.
The exposure time for each image : 40.7ms.
Focal length : 1800mm
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By Cosmic Geoff
I have continued to image Mars as it moves away. It is getting smaller, but on the other hand I don't have to get up in the middle of the night, the dust storm has subsided, and it is gaining significantly in altitude.
Here is a series of images taken in September and early October, all taken with a C8 SE, ASI120MC, +ADC, processed in Registax 6. The seeing was often poor, but seemed better on Oct 3.
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