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About Jedi2014

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    Star Forming
  • Birthday 07/03/1965

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    Astronomy, music, astrophotography, dogs, family
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    Bremen, Germany
  1. M 51

    Thank you very much. Glad you like it.
  2. M 51

    Thank you all for your kind words. And Luke thanks for finding the asteroid. The image is taken with my 10" newtonian an ecxcellent scope. regards Jens
  3. M 51

    Hi everybody, M 51 is interesting because it is one of the next galaxies with an active galactic core, a type II Seyfert galaxy. In its centre there is a super-massive black hole. Unfortunately it is not visible in my image :-) As a little treat I found a tiny small asteroid in the raw images, which slowly passed M 51 within the 5 hours of the luminance shots on the right. The video can be found here: https://youtu.be/wHPw9X5bkR8 This is a 60% crop of the original field: bigger, data and more information about M 51: http://www.spaceimag...laxies/m51-2018 https://www.astrobin.com/333025/E/ Regards Jens
  4. HDW 2 (Hartl-Dengl-Weinberger 2)

    Thank you all for your nice feedback. greetings Jens
  5. Due to bad weather, I couldn't do anything for many weeks, so I am happy to finally be able to show a picture again. It's a real exotic: HDW 2 (Hartl-Dengl-Weinberger 2), also known as Sharpless 2-200 or PNG 138.1+04.1, is a quite old planetary nebula (PN) in the constellation Cassiopeia at RA 3hr 11m 29s and DEC +62d 45m 5s. The nebula is also called "Bearclaw nebula". The bright part of the object has a diameter of about 6', north is at the top left. According to W. A. Weidmann and R. Gamen, who have examined the central stars of different PNs, the central star of HDW 2 is a binary star. The color of the object is a mixture out of blue/green OIII and red/magenta Ha. The Planetary Nebula is almost spherical with pronounced stripes and a darker area to the south, surrounded by a thin fissure. What looks like an outer bright H-Alpha ring or halo is probably the edge of an extended spherical envelope from another previous explosive event. This weak halo reaches to a small open cluster of stars, Trumpler 3. Despite some research, I wasn't able getting the distance of this PN. Maybe one of you knows it? Frank Iwaszkiewicz (www.deep-sky-astroteam.de) and I have once again joined forces for a cooperation project for this extremely weak representative. The version shown above corresponds approximately to the field of the Epsilon. HA and[OIII] were exposed for the nebula, as well as RGB for the background and the stars. Due to the bad weather, the project lasted from October to January. You can find the exact exposure data on my (or Franks) homepage: http://www.spaceimages.de/en/astrophotos/nebula/hdw-2 Or here: https://www.astrobin.com/323127/E Smaller field of view of my 10" Newton: Best regards Jens
  6. Hi Sara, wonderful! The stars of your TMB Apo are quite nice. As well the rest of the image beginning with colors ending with details. A picture has to mature sometimes, which is also the case with my images. Jens
  7. Sh2-261 Lower's nebula

    Many thanks. You‘re right Barry, Ha is pushing details which RGB could never deliver alone. Applying Ha to RGB is not simple and there are different ways. I do it in many small steps with Pixinsight as well as with Photoshop during finalizing.
  8. Sh2-261 Lower's nebula

    Thanks guys, yes, it was imaged with the Epsilon, but the shockfronts were enhanced with my 10“ newtionian.
  9. Sh2-261 Lower's nebula

    Hello, Sh2-261 (or Lower's Nebula) is a H-II region on the outermost edge of our Milkyway, on the border of the galactic region between the Orion and Perseus arm. Although it is located in the northern hemisphere, it can be observed from all populated areas of the earth. In addition to the prominent objects in Orion such as M42, the horse's head or the flame nebula, Lower's nebula is rarely shown. Therefore it is not surprising that this object was first discovered in a photo by Harold Lower and his son Charles in 1939. The picture was taken with a self-made 8-inch smith camera. The nebula is about 3,200 light-years away from us, has a size of about 13.1 parsec and shines with an apparent surface brightness of about 10 mag. Above the bright star HD 41997 in the center of Sh2-261 a small reflection nebula is visible. For the exposure, I scraped together all the cloud gaps during november to reach almost 7 hours. What a cramp! More: http://www.spaceimages.de/en/astrophotos/nebula/sh2-261 or https://www.astrobin.com/322218/0/ Greetings Jens
  10. Abell 85 aka CTB 1

    Thank you Wim 😊
  11. Abell 85 aka CTB 1

    Hi Wim, as you anticipated :-) you don't know the lottery numbers for the weekend, do you?
  12. Abell 85 aka CTB 1

    Thanks a lot for the nice comments. This one is a tough target, well... before I look at it again, it's going to take years.
  13. Abell 85 aka CTB 1

    Hi, in the last 3 weeks there hasn't been much going on here. I had 5 nights with longer cloud gaps in which I could collect sparse photons for a rather difficult supernova remnant. After 14 hours of difficult HAOIII and RGB (thereof several hours at moonlight) I had almost given up, when an friend of mine (Juergen Beisser from Lilienthal near Bremen) suddenly rubbed his just finished bicolor version of the same object under my nose. He had run in a total of 9.5 hours. Both my 14 hours and Juergen's 9.5 hours for themselves resulted in a "usable picture", but I wouldn't exactly call it an eye opener. We agreed to merge our data, which I did. The version we show here is just ONE of many possible versions that could be obtained from the collected data. In principle, it is a composite of bicolor and HaRGB, whereby I tried to preserve the RGB impression and not focus on the H-Alpha. With more Ha, the background would be much more red, but this would steal the show from the bubble. Abell 85, aka CTB 1 is a large supernova remnant (SNR) located in Cassiopeia. The southern portion of the supernova remnant bubble also made it to Lynds bright nebula catalog as LBN 576. Originally catalogued by George Abell as a planetary nebula, it soon became evident that it was actually a SNR. It was also recognized as a radio source and acquired the alternative designation CTB 1. The right side of the field includes a small reflection nebulae (GN, which is not clearly visible in this image, and a small possible planetary nebula (We 2-262). Abell 85 has relatively weak [OIII] and H-Beta emission compared to the "traditional" supernova-remnant lines of H-alpha, [NII], and [SII]. In fact, this object is often considered as one of the most challenging for visual observation and remains a big challenge for CCD photography. North is up in this image. More on my website: http://www.spaceimages.de/en/astrophotos/nebula/abell-85-aka-ctb1 or http://www.astrobin.com/320277/ Juergens image individually: http://www.astrobin.com/319273/ Annotation: Pure RGB data without any processing except DBE, streching and scaling: Cheers Jens
  14. Hi Sara, first congrats for the APOD (again). The veil is a region, where you can spent a whole year and will find still another interesting detail. Your rendition of the triangle is really great and your patience payed out 100%. Btw, I am about to change my camera as well, but not from KAF to Sony, but from Atik to QSI. I like to have camera, filterwheel and off axis guider in ONE piece - like the QSI 690 wsg8 is offering. Did you ever heared of the vertical banding noise the QSI should have? Greetings Jens
  15. M45 the pleiades

    Thank you all, glad you like it. Jens