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smerral

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Posts posted by smerral

  1. Just a few of the sun from this morning.  Scope was the Altair Astro 102 ED-R and camera the DMK 31. Lunt CaK diagonal B600 was used for the CaK and Daystar Quark Chromosphere for the Ha.  Of course the sun is very low now, especially in the far north and the seeing is variable.  Nice to see some solar activity though! :)

    hKXwSxoI_o.jpg

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    • Like 8
  2. Mars imaged last night with the C8 and Altair GPcam V2 mono and RGB filters and ADC. Imaged at 4000mm and enlarged 150%. After an unpromising start seeing became better than last time. 2000/8000 frames stacked and processed as RRGB.  Time was 22.30 UT.

     

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    • Like 8
  3. Mars last night with the C8 and Alair GPcam V2 mono and RGB filters. This best result comes from using the long pass red filter as luminance for RRGB. Imaged at f.20 and enlarged 200%. 2,500/10,000 frames stacked for each of RGB. ADC used.  Mare Cimmerarium dominates the disc right now.  Imaged 00:45 UT.

    5BMIO50YD-jL_1824x0_kWXURFLk.jpg
     

    • Like 4
  4. Thank you very much! I must say I'm surprised how well it turned out.  This OSC image came out much better than the RGB.  I've a suspicion there may have been  some condensation on the fiiters, as despite the good seeing there was a heck of a lot of moisture as the humidity settled out.

  5. Well I had a session with Mars this morning. Set the alarm for 2 AM. It was worth it though, I did some RGB but here is a quick process of the image I took with the Altair GPcam colour. Scope was the C8 at f.20 and I used an ADC. 2500/10000 frames stacked. Enlarged 200%.

    J08jVSdQzrtf_1824x0_SEXPyU5O.jpg

    • Like 23
    • Thanks 1
  6. On 15/06/2020 at 15:45, The Admiral said:

    Lovely rendition, and has been said before the core is nicely tamed.

    These multi-bandpass filters seem to be gaining traction, how well do you rate the Altair? Can I ask what you are using to process please?

    Ian

    Thanks Ian.  Though I don't have a tremendous experience with refractors I would rate the Altair as excellent value for money, a really first class scope for wide field.  I have even less experience with quadband filters as I've never used any other but the Altair seems to do the job.  Although I don't suppose they will ever produce the fine contrast of true RGB imaging they do save time!  I'm very happy with the results I've got from mine.  :)  As to processing,  I use Astro Pixel Processor and Photoshop.  It takes a bit of experimentation to bring out the colours of the different bands.

    • Like 1
  7. Thanks everyone.  I think my personal favourite is the Ptolemaeus image in the second set.  You can actually pick out every individual crater in  the crater chain to the left (catena davy), something that you can't really do in the similar image from the first set.

  8. Thanks everyone!

     

    Quote

    Hi Smerral

    You may have thought the seeing was not all that good, but...  those images are FANTASTIC!!!  For 8 inches of aperture I have seen nothing better, and I have seen a lot,  I don't know where you live, but I get conditions like this about every 5-10 years.

    Can't find your earlier better results, would be interested if you can post a link,  Great work!

    Cheers

    Nick

    Nick,  the seeing was indeed excellent, it's just that last time it was even better, probably the best I've ever experienced.  It did occur to me that this may be partly due to the lockdown and the reduced pollution from aircraft, though I have no proof of that of course.  I live in Caithness in the far north of Scotland and whilst we don't get as many clear nights as some parts when it's  clear it IS clear, Bortle 2-3 at least.  Funnily enough I can't find my previous post either, so here are the ones I did on 2nd May.

     

    a5-gjV-aEEuN_1824x0_kWXURFLk.jpg

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    • Like 5
  9. Here are some images from 31 May when the moon was first quarter, taken with the C8  and Altair GPcamV2 mono.  The seeing wasn't quite as excellent as my last session but still pretty good.  There is some loss of contrast too as the sky was still quite light (it never does get completely dark at my location at this time of year.)  

    Clavius.

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    Tycho and Maginus

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    Copernicus

    w_Brz1zrgQIG_1824x0_xTjz_rdB.jpg

    Erastothenes

    TSsIGuPDC6mg_1824x0_kWXURFLk.jpg

    Aristoteles and Eudoxus

    5BVlyMfPWDA6_1824x0_kWXURFLk.jpg

    Plato and the Alpine valley

    l8SYeFt1W771_1824x0_kWXURFLk.jpg

    Goldschmidt and W Bond

    1NN1JF4okvvC_1824x0_kWXURFLk.jpg

    Walter and Stofler

    MP5-slQ4vgvW_1824x0_kWXURFLk.jpg

    Moretus

    5h9hFpjHvD4L_1824x0_kWXURFLk.jpg

    • Like 29
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