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Jedi2014

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Everything posted by Jedi2014

  1. After a while I like to present my latest image of NGC 4449. It is an irregular galaxy of the Large Magellanic Cloud type, also called LMC type, in the constellation of Canes Venatici. It has an angular extension of 5.5' × 3.6' and an apparent brightness of 9.4 mag. At the end of February we had a lot of nice days, but the nights were filled with cirrus and dust. So why not take up a very weak irregular galaxy, the mentally deranged astrophotographer is thinking. In retrospect I felt like this after 4 nights. Then I took it as a challenge and could work out a decent picture at the end. What you see here are about 13 hours of HaLRGB (with CLS filter as luminance) and 20 hours of processing to get rid of the gradients and the dust in my raw material. At least: with a lot of good will you can see the tidal tail left above the galaxy. Data and more information: http://www.spaceimages.de/en/astrophotos/galaxies/ngc-4449 or https://www.astrobin.com/392780/ If someone is at the CEDIC in Linz (Austria) 15th - 17th of march, you can meet me there. I'm looking forward to it. Cheers Jens
  2. A warm thank you to all commenters. I am glad that you like the image.
  3. Hello everybody, the requested M31 mosaic is ready Details: http://www.spaceimages.de/en/astrophotos/galaxies/m-31-mosaic or https://www.astrobin.com/378147/ Best viewed in full resolution. I hoppe you like it. Jens
  4. Hi, I used to be in the mood for M31. Since my Newton doesn't quite get it completely on my camera chip (ASI 1600 MMC), I concentrated on the "northern" part (at least in the usual way). After two somewhat hazy nights in which I collected 5.5 hours of LRGB in my backyard observatory, the following was the result: (and YES - I will go for a mosaic :-)) bigger and data: http://www.spaceimag...es/m-31-of-2018 or https://www.astrobin.com/376031/ Cheers Jens
  5. Never seen a more three dimensional Andromeda galaxy before. Stunning... Jens
  6. Hello, Sh2-150 is a fairly extensive H II region oriented north-south east of 26 Cephei. It is located at a distance of about 900 parsecs (over 2,900 light years), next to the nearby Sh2-145 nebula, and appears in the direction of the stellar associations Cepheus OB2 and Cepheus OB3 and may be associated with the expanding superbubble "Cepheus Bubble". Two blue stars would be responsible for its ionization: HD 213087 has the spectral class B0.5Ib and is therefore a blue supergiant, while HD 213405 of the class B0.5V is a main sequence star. Sh2-150 is so weak that it takes a lot of exposure time to capture a good clean image of the region. I exposed a lot in pure RGB, because there are some nice reflection nebulae in the area I wanted to show. Camera was an ASI 1600 MMC. Details: http://www.spaceimages.de/en/astrophotos/nebula/sh2-150 or https://www.astrobin.com/371753/ Since I exposed with my two telescopes at the same time, I took another picture with the Epsilon 130 in a larger field, which otherwise has the same exposure data. Camera here was an Atik 490 Exm. Cheers Jens
  7. Thank you for your nice comments. I‘m glad you like the image.
  8. Mornin', finished another picture. It shows a section of Pickering's triangle. This celestial object was discovered in 1904 by Williamina Fleming. It was commissioned by Edward Charles Pickering, director of the Harvard College Observatory, to examine photographic plates and catalog the stars and other celestial bodies. As was usual at the time, newly discovered objects were named after the employer and not after the assistant of the observatory who made the discovery. Williamina Fleming made many discoveries during her work for Edward Pickering. One of the most famous objects she discovered is the Horsehead Nebula. The picture was worked out as HaOIIIRGB. Besides the narrowband data, which clearly show the structures, there are also many hours of RGB in the image, which give the whole thing the beautiful colours. More data and larger view here: http://www.spaceimages.de/en/astrophotos/nebula/ngc-6979 or https://www.astrobin.com/364407/ Many greetings Jens
  9. Like Rodd wrote, I used method 2. The result was better than every single stack. The 15s exposures where only a test because of the new camera. As I did not see any advantage, I will not do it again.
  10. End of may I captured M 101 during three nights with my 10" inch newt and the ASI 1600 MMC. Here is the final result right before summer break. data and more: http://www.spaceimages.de/en/astrophotos/galaxies/m101-galaxie-detail or https://www.astrobin.com/347019/ Greeting Jens
  11. Thanks for all nice comments. Marcel not only flipped his image, he streched the luminance more than me. Something to make a difference between our both images.
  12. The Molecule clouds LBN 552 and LDN 1228 consist mainly of a diffuse dark nebula on the right and a light nebula on the left, which were catalogued by Beverly T. Lynds in 1965 as LDN 1228 or LBN 552. Near the center of the image there is a unique orange reflection nebula, which is catalogued as GN 21.00.4 as well as RNO 129 and appears as a hill from the diffuse dusty region. This picture shows only a part of the LBN 552 and LDN 1228 structures, which cover a much larger area and are part of an even larger cloud system in this area of the Milky Way. This molecule cloud is considered the weakest in the Lynds Bright Nebula catalog (5 and 6 on a scale of 1 to 6, with 6 being the weakest). The last days in april brought quiet and sunny weather during the day, waning moon at night and a lot of clear sky. The right time for a molecular cloud. I would not have had the idea to photograph LDN 1228 and LDN 552 alone, the suggestion came from Marcel Drechlser, with whom I had already successfully photographed Sh2-174 in a cooperation. We arranged a cooperation on short notice. Marcel was to contribute the luminance and I should do the color. This made sense, because Marcel's sky at about 900 m above sea level is darker and more transparent than mine by far - if the weather is right. Therefore, its luminance should provide the details and depth. My RGB images would make the picture more colorful. To cover as large a field as possible, I used my Epsilon with 430mm focal length and my Atik 490 Exm. Marcel used his RASA and an ASI 1600 MMC. bigger and more information about the image: http://www.spaceimages.de/en/astrophotos/nebula/lbn-552-ldn-1228 or https://www.astrobin.com/343865/ I hope you enjoy. Jens
  13. Thank you all for your nice feedback. Barry, the Atik 460 Exm will take a break now. Maybe I do images with it in autumn again. For now the ASI became my standard with the newtonian. Jens
  14. Today I like to present the first and second light with my new camera, ASI 1600 MMC. First an emission nebula in Cepheus, SH2-140, 11 hrs. HaLRGB: More info: http://www.spaceimages.de/en/astrophotos/nebula/sh2-140 or https://www.astrobin.com/345427/ Second the Coma galaxy cluster Abell 1656, 13 hrs. LRGB: The picture also shows the Quasar QSO[HB89] 1256+280. With a redshift of 2.66, this quasar has a distance of 11.3 +/- 1 billion light years. It is thus located shortly after the Big Bang and thus the observable part of the universe: More info: http://www.spaceimages.de/en/astrophotos/galaxies/abell-1656 or https://www.astrobin.com/346175/H/ I hope you enjoy the images as I did. The camera is worth every cent. Jens
  15. Thanks for all nice comments. John, I cropped only a little bit. But I roteted the original image by 90°. Jens
  16. Hey, guys, In april NGC 5033 was one of my targets. Interesting astronomical detail that the Seyfert nucleus of this galaxy is not in the kinematic center of the galaxy (the point around which the stars rotate). This has been interpreted as evidence that this galaxy has undergone a fusion. The displacement of the Seyfert core from the kinematic center can destabilize the rotation of the gas at the center of the galaxy, causing gas to fall into the core. This unbalance might explain the distortions in the spiral arms. I processed the galaxy inner core without luminance, purely from the RGB data. This made it sharper and more detailed. Here is my version, 13 hours LRGB. I hope you like the picture. https://www.astrobin.com/343052/0 http://www.spaceimages.de/en/astrophotos/galaxies/ngc-5033 Jens
  17. Jedi2014

    M 63

    Hi, 2 hrs. is far away from enough for getting the dust lanes. I captured 18 hrs. !
  18. Jedi2014

    M 63

    Here my M 63 galaxy from the early days of April and some other data I had already gathered in 2017. I tried to visualize the weak star stream around the galaxy. Well, you can see something, I could also stretch brutely, then it would be clearer, but I find it more natural that way. The color of the outer areas of the galaxy looked more magenta in the raw data, but I adapted it to the mainstream by changing the color calibration and worked it out bluish. With the saturation I considered it quite strong for my taste, but hopefully not excessive. Form your own judgment: Data and video blog: http://www.spaceimages.de/en/astrophotos/galaxies/m-63 or https://www.astrobin.com/340713 Many greetings Jens
  19. Thanks. EQ8 is a workaholic. It runs without any complain.
  20. According to Skysafari the object is called "MonR1 DN Complex", but I could not find anything else about it. In any case, the structure is quite well known, occasionally also seen as LRGB image. To the left of it is the open star cluster NGC 2259, which is how I called the picture on my website. That much I can say: it is right to classify it as a dark nebula! Even with f 3,3 and narrow band I had to give it a lot of exposure time, so that acceptable details came to light. Since the area is now very low, I could only expose 3 hours at a time per night. So for 18 hours 6 part-nights were due. Hope you like it. It is a hubble palette with RGB stars. A bicolor version and more on my homepage: http://www.spaceimages.de/en/astrophotos/nebula/ngc-2259 or https://www.astrobin.com/338436/I/ Jens
  21. Thanks again for all comments. You are very kind. Jens
  22. Thank you very much, your comments are a big motivation for my next image :-) Jens
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