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wimvb

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wimvb last won the day on October 14 2017

wimvb had the most liked content!

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About wimvb

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    http://wimvberlo.blogspot.se/

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    Sweden (59.59° North)

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  1. Ok, no kidding this time. The setup just before lights out. But still a long time before action, since astro darkness doesn't start until 11 pm up here. Fortunately, the moon is out of the way, still. One more week and imaging season will be over here.
  2. Here’s my setup in action last night. I’m a photographer, I don’t use a flash. But I may need to do some colour calibration and stretching.
  3. Thanks, good to know. I stll have a few in the pipeline, but astroseason is coming to an end up here, with a horrible blueshift.
  4. Depending on sky and camera, ccd or low noise cmos, you need long exposures (my guess, 15 minutes or more for ccd) or 5 minutes for cmos. But you will need lots of them. The 3C273 jet is much fainter than the one in M87. There’s hardly any risk for over exposing it. My experience with faint galaxies is that you can never have too much data. Diminishing returns is just a fable in this situation.
  5. Apparently you still are, just of a different kind. Great image, Göran.
  6. It may get drowned in the light of the galaxy on longer integrations, most likely.
  7. @Rich1980, that's a nice clean setup. What's your opinion of the pegasus powerbox?
  8. Interesting. Chance would have it that I pointed my telescope at the same patch of sky yesterday. After finishing my imaging session, I usually point my scope at some interesting object that is coming into position. Yesterday I decided to point it at M87, just because I had read about this galaxy during the day. I fired away at it, collecting 15 30 seconds subs. Registered and stacked them in PI, applied DBE and stretched the image. I cropped and rotated to approximately match your fov and resampled. Not at all in the same league as yours, but here you have it:
  9. Thanks, Göran. Maybe time for yours to come out of the closet (literally). If I had a place to put it, I would very much like to have one more. But unfortunately, my mount won't carry two.
  10. Thanks Alan. You're correct, its popular name is the little pinwheel. But this galaxy is a lot dimmer than its big brother, and only 1/3 its real (not angular) size.
  11. Right under the back paw of the Great Bear, is this collection of galaxies and galaxy clusters. The largest object in this image is galaxy ngc 3180 or ngc 3184, it seems to have two entries in the new general catalogue. It is situated at a distance of 40 Mly according to Wikipedia, but only about 26 Mly according to its redshift (0.00197). The galaxy is of type SAc, a spiral galaxy with active star forming regions, which I tried to enhance by collecting Ha as well as RGB. The angular size of this galaxy is only about 7 arc minutes, giving it a diameter of about 55 000 light years, half th
  12. AfaIk, if the object name is the same, Ekos reuses the diectories. Otoh, I don't use the scheduler that much, so could be wrong.
  13. You may need to clear the mount model inekos. And let ekos update devices (if I recall correctly). That worked for me.
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