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About Archonom

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  1. Thanks for your comments. Nitpicking and criticism is totally fine with me. Your feebdack is highly appreciated.
  2. I don't know what happened, suddenly we had 2 or 3 consecutive days with good seeing here in Germany last week. Took my chances and went out with the C11 I aquired a bit more than a year ago. Here are the results, and I must say I am quite happy with them. I know that many guys here can do more, but I still consider myself as a beginner and will be glad if I could continue learning from you. Copernicus with some area around Copernicus only Plato Goldschmidt Sinus Iridum C11, ASI ZWO 290 MMC, Baader IR pass filter, no Barlow
  3. Hi there, I am a beginner in astrophotography and want to try imaging Venus with my one year old C11. This is my second attempt on Venus with the C11, and the first in UV. Seeing was very bad, unfortunately. Here you go, two captures (~ 9000 frames each, 11% stacked) while the seeing was about to move from "very bad" to "horrible": I also captured Venus through an IR pass filter and tried creating a false-color image composition. However, the result had nothing to do with the UV and IR captures, so I decided to capture more data before trying again. Since there are many experienced people here, I was hoping for some advise regarding capturing Venus. For me, it's hard to tell if the darker areas in the captures above are actually cloud or atmospheric details or just bad quality areas in my frames. What do you think? I tried imaging Venus in UV through my 2x Barlow, but it seems that the Barlow blocks almost all UV light. What 2x Barlow do you guys recommend for UV imaging? Could it be that the Schmidt corrector plate also blocks some of the UV light? Does it make sense to do UV imaging with a C11? Or should I go with my 8 inch Newton and a TeleVue 5x Barlow? I used an ASI ZWO 290 MMC cam. I guess it makes sense to move to a monochrome cam when using IR or UV pass filters? Do you have any good tutorials on how to create a composition of IR and UV images from Venus? I looked up some tutorials, but it would be great to get recommendations here. Any help is highly appreciated.
  4. It was a cold and long night at the end of September, but it was worth staying up until 5 am. Had a great look at the Horse Head and the Plejades, but my main goal was Orion: Unfortunately, the spikes are far away from perfect. I guess that something inside the tubus reflects the light, but I am working on it.
  5. After shooting Andromeda, I decided to give M33 (Triangulum Galaxy) a try. The spiral galaxy appears as a very large and bright object at the night sky, however the luminance is distributed across a larger area. Having a very light polluted night sky, it is impossible for me to detect M33 through an eye piece. Instead, I have to take pictures with my Canon and hope that the object appears on the screen after I told the GoTo hand piece to focus on the object. After 3-4 seconds, one can see a blurry dot between the stars. After 30s shutter one can detect some structures and only after 90 - 120s M33 shows its spiral arms. A shutter of 120s products very light results at my sky, which is why I decided to limit the shutter to 120s and shoot many pictures instead of having e.g. 10x 300s. M33 is only 3 million lightyears away from us. Having a diameter of approx. 60 000 light years, the Triangulum Galaxy appears to be much smaller than the Milkyway (ca. 180 000 light years). M33 contains at least 20 - 40 billion sun masses and shelters M33 X-7, the most massive black hole known to date, which has evolved from a single star. And a slightly modified version with less red and more blue in it: Site: Inner city in South Germany 56x120s ISO 1600 Canon 1200DA 8'' f/5 Newton EQ6R Stacking: Sequator, which filtered the light pollution Editing: Increased contrast slightly Cropped Before this session I went out with my Canon 1200D and a 50mm lense, trying to capture this beautiful object with a wider field: 83 x 4s, ISO 1600, F/1,8 There it was. The first time for me, so I was very happy when I saw this beautiful target on the stacked picture. After a while, M33 appeared on the screen. The sky was
  6. Thank you @vlaiv , your hints helped me alot during the last nights!
  7. Thanks for the hint regarding collimation. I took a look at my Newton today, and well, what could I say, some work needed to be done : - ) Now looing forward to seeing some decent spikes!!!
  8. Thanks for sharing this one, astrovani.
  9. Wow, those images are amazing. Keep on the awesome work.
  10. Wow, so much feedback! Thanks, this is highly appreciated! Regarding the things you asked: Yes, the Canon EOS 1200 DA used for this photo session is astro-modded. @Demonperformer, you mentioned that what counts is the total time of light. However, I started to wonder if it is really the same if I do let's say 10 x 30s shoots or 5 x 1m shoots. I have the feeling that one needs a certain minimal shutter. E.g. it was not the same when I shot 30x2s Andromeda and stacked it compared to 2 x 30s. @RolandKol Thanks so much! I would love to do polar alignment, unfortunately I never discovered Polaris in the night sky. I am a bit ashamed, but I guess that the sky is too light polluted in the northern direction where Polaris should be, so I never was sure about what star is Polaris and what might be just a neighbour. ISO is 1600 or 3200 because I felt the high sensitiy is needed for my light-polluted site. But I will try 800 next time, thanks! I will also check the colimation. I ordered a MGEN II, so no software is used for guiding. Dithering is something I want to do when I learned to align properly. I wonder if plate solving is possible when I don't want to use a Notebook? @alacant, @Rodd: Thank you, your comments are really helpful and very motivating!
  11. Last night one of my dreams came true when I managed to obtain my first DSO shots. I am still a bloody beginner and just started in February this year. Since then, I focused on planetary imaging because decent results could be achieved easily. But my biggest goal is to learn how to image Deep Sky Objects, so I started practicing with my equipment and 3 star alignment. Last night, I tested some new settings with the guiding, and although alignment was poor, I was able to capture a few things. I live in a very light polluted area, so I am glad that at least the brightest objects are visible on cam. Unfortunately, the pics seem to be out of focus and the starts are not dots, but small eggs or lines. But still, I am very happy and it was definitely worth it staying up until 4 am. As usual, I would be very happy if you have feedback for me. When I view the images you guys post here, I am very fascinated of how professional they look. I can only imagine how many hours of work you put into a single picture, and I keep on being motivated by seeing this level of dedication. Let's start with the Andromeda Galaxy: And the fishhead nebula: Wow, the Orion Nebula looks so awesome when shutter is greater than 2 seconds! Plejades, single shot, 30s: And finally, the horse head nebula, only few shots with 30s each and ISO 1600: Next goals: Better Andromeda and horse head images. What would you say: In a light poluted area, how would you shoot those two objects? I just started with 3 stars alignment and guiding, but I imagine it is better to shoot something like 10x5m than 20x2,5m? Thanks for your time!
  12. Beautiful colors. Lots of details. Superb image!
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