Saturn’s Moons, and some star – 2018-09-02

While recording the planet, I also exposed a few frames for the moons. Then I used Stellarium to align the properly exposed planet to the rather noisy background. The outcome had a surprise too, a 10.15m star I failed so far to identify. Below I show the steps of the process the picture went through from the stack, via composing, to the final image. Mimas is more like a wishful thinking — there are some lighter pixels there though –, but Enceladus is clearly there. The moons on the final picture are from the pixels of the original recording, the Stellarium layer was nothing but a guiding tool.

(tovább…)

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The Rotating Mars – 2018-09-02

Mars, rotating

Using the N 150/750 tube with the ASI 224MC, on the HEQ5, I imaged how the red planet rotates around its axis. While this is trivial, this is my first attempt, after being more than successful with Jupiter. Meanwhile, I got news that the ADC is coming after all, so I may image Saturn and Mars using an ADC, hoping for better results. Also, in a few days I’ll have been an amateur astronomer for twenty years1998.09.10. Csillagnapló-részlet.

(tovább…)

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Saturn – 2018-09-02

Saturn, 2018-09-02

Tonight I put up the N 150/750 scope, with the almost-for-free extension tube to get meaningful sizes for the projection of the planets. Because the ADC I order from the internet still has not arrived, the dispersion is severe. However, there is a trick: to get the most out of the Cassini division, I used only the red channel as luminance, so lots of editing went into each Saturn-picture. The seeing was surprisingly good at first glance, but the stack quality revealed it was more of wishful thinking. Camera: ASI 224 MC, mount: HEQ5. The grey 1.25″ extension tube is from the nearest hardware store.

(tovább…)

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Mars – 2018-08-31

Mars, final picture

Using my MC 102/1300 with the ASI 224MC, on the HEQ5 installed on my balcony, I captured Mars. I, as usually, took 10k frames with a small ROI, and kept only the best few hundred frames for stacking. I used the usual software stack, Sharpcap for capturing, (PIPP and) Autostakkert for image stacking and Registax for the wavelets. Then some good old photo editing to get rid of the ringing and other artifacts. (tovább…)

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Full Moon 2018-08-25

I imaged the ~full moon using the MC 102/1300 and the ASI 224 MC setup. Mosaicing is always error-prone, because it is hard to find the optimum between missing out parts and over-covering the surface with far too much overlaps. I almost left out tiny pieces of the surface, but the final outcome is ok. 

(tovább…)

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Moon, Libration, 2018-08-19-20-21

Moon, 2018-08-21

The images in this post are made with the ASI 224MC at the MC 102/1300 and the N 150/750 . With the wider field Newtonian it takes only 6 pieces to image the (~half) Moon. The processing and mosaicing is still a time hog, but at least its only half the time and pieces. Everyone who has ever done a lunar mosaic knows that there is a high risk and thus paranoia regarding coverage, and that we need to find a bearably balance between getting all the necessary pieces without too much overlap. Taking into account a minor drift of the field of viwe which is actually a good thing for the picture quality, recording and then mosaicing is in fact harder than it sounds.

(tovább…)

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The Moon – 2018-08-19

Using an ASI camera to image the moon feels lightyears ahead of the Scopium I used to use. It is so much better, versatile, capable – its pricey too, but hey. So I imaged the Moon, taking a total of 12 pieces for a mosaic, each piece being  a stack of around 500 frames, all the settings being kept. The stacks were made using AutoStakkert, then sharpening in Registax, using the same settings for all frames. Fortunately the atmosphere did not change much so it was fairly easy to put the pieces together in a fairly large resolution image. A large resolution version of the image below is here. An earlier attempt, from 2015, of mine is here.

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Veil Nebula 2015-2018

Veil Nebula

I have stacked all the data I have of the Veil Nebula at 200 mm. The first set of images come from 2015, when the camera was still unmodified, the mount was a somewhat problematic EQ3, not guided, and no filters. The 2018 set is with the same camera and lens, but the camera is modded, it also had an IDAS LPS D2 filter inserted and the mount is a HEQ5, guided. Both sets of images have been stacked and curves have been applied to them, before molding them together. Unfortunately the chromatic aberration, although elsewhere, is still present in the lens, regardless of my efforts to manually tune the lens. It is still not OK for astrophotography. Back in 2015 I was nowhere near a starheal and star reducing program — now I have my own.

C 33, NGC 6992, SH2 103 [SNR in Cyg] Veil nebula, East Veil Nebula, Keleti Fátyol-köd, Cygnus Loop, Sharpless 103, SH2-103 ø60′ [wiki] [simbad] 135mm, 200mm, 750mm

C 34, NGC 6960, SH2 103 [SNR in Cyg] Veil nebula, West Veil Nebula, Nyugati Fátyol-köd, Cygnus Loop, Sharpless 103, SH2-103 ø70′ [wiki] [simbad] 135mm, 200mm, 750mm

(tovább…)

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Some Mars images

Using the HEQ5+MC 102/1300+ASI 224MC, I obtained these Mars images.

Mars 2018-08-15 23:51:59

Mars 2018-08-17 23:51:41

 

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Some Saturn images

Saturn

Using the HEQ5+MC102/1300+ASI224MC setup, I’ve been recording Saturn. Some stack contain the best 5% of 10k frames. And I present a compositing process, showing Tethys, Dione, Rhea, Enceladus and maybe Mimas.
(tovább…)

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Jól kalibrált monitoron mindegyik számnál elkülönülő árnyalat látszik. Ha mégsem látszanak, akkor a megjelenített képek színhiányosan rajzolódnak ki. A monitort valószínűleg kalibrálni kell.

You should see distinct shades for each number. If those shades are not clearly visible, the displayed pictures will lack accuracy. Your display most likely needs to be calibrated (brightness, gamma, contrast etc.).