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Seanelly

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Everything posted by Seanelly

  1. The colour is beginning to pop beautifully.
  2. My first, and only, two. M31 (20x30s lights, 1600iso) a month ago, and M45 (16x180s lights, 1600iso) a few days ago. My scope is 900mm with a .85x reducer/flattener, so M31 is mostly core, but the Pleiades fit very nicely. No flats, biases or darks, both worked somewhat in DeepSkyStacker, and the Pleiades falsely coloured in a Microsoft photo editor, because my wife says I don't get Adobe PhotoshopCC until Christmas! I did a lot of preliminary groundwork before attempting anything, and I'm very proud of them.
  3. Seanelly

    M45 12-07-18

    Many thanks! I'm anxious to add more data and get my guiding worked out.
  4. The details are fascinating-well done!
  5. Seanelly

    M45 Plaeides

    This is awesome.
  6. Seanelly

    M45 12-07-18

    My first long exposure image taken since acquiring the new kit a couple of months ago, and even though it didn't go according to plan, it does show an incremental progress I was counting on. I got the new DSLR shutter release remote working for the first time, and was hoping for several hours of data. What I did get was 16x180s decent lights out of 32 taken before the laptop, hence the guider, shut down on me, and having forgotten to charge the backup batttery (so many things to keep in mind for a newby!), my night was done without even getting any dark images, bias or lights. Half my images were useless from star trails, probably from a jostling of the tripod that I thought was not as serious as it seemed to turn out, and even this image shows signs of it. So this is 16 stacked images of 3 minutes each with adjustment in DeepSkyStacker to acquire some contrast, with some false blue added in a totally inadequate microsft photo editor, because my wife won't let me get Adobe Photoshop CC until Christmas!
  7. This is a remarkable image. Inspiring!
  8. Very nice. I'm partial to globular clusters, and these are prime examples.
  9. Beautiful stuff. I'm partial to globular clusters, and these examples are prime. I repeat myself below.
  10. I have been called impulsive (ask my wife), and though true at times, I can argue the opposite when it finally came to purchasing my astrophoto kit. In 1979, when I was ninteen, my father died, and left me the old pair of virtually unused Zeuss 10x50 binoculars that he had displayed in their leather case high on a shelf in his den for as long as I could remember. Those binoculars sat in that case on a shelf of my own for another twenty years, until on a whim I grabbed them as a last item while heading out the door on a camping trip up in northern Ontario. My binoculars were the hit of the entire week among the five of us. They were passed around every evening, virtually all evening, and from that trip grew my love of the night sky. I soon acquired a small reflector, then a larger one, and twenty years ago my trusty old 254mm Meade Starfinder dob. I learned the night sky not the hard way, but the best, most fullfilling way, by studying charts and spending hours under the glorious stars. Since getting that dob I saved my pennies, did my homework, threw most of it away and did it all over again, until finally I was ready to purchase my astrophoto kit about six weeks ago. The learning curve is steep, no doubt, and I'm nowhere near where I want to be, of course (who is?), but I'm happy to report that there isn't a thing I'd do differently. The truth in that Sky and Telescope article should help anyone who feels the call of the night sky but doesn't know where to turn, and I just thank my lucky stars I was able to get into the hobby without too many errors.
  11. I've been using this galaxy just recently as a test subject for my new (five weeks) rig because it is so open and nearly crosses the zenith in my neck of the woods here in eastern Ontario, but the 900mm focal ratio on my SkyWatcher 100mm, even with the .85x reducer/flattener, means only the core (pretty much just the bright area (white and greenish) that shows in this image) is visible in the field of view. The data you've accumulated for this (15x30s) tells me that you are using the exposure limit of the DSLR alone, if my Canon T6i is any indication, without any other software or a programmable shutter release, the same as I am doing, but still your image shows much more detail than I am getting from the core area after stacking several dozen images taken with the same settings (I've tried both 800 and 1600iso), though in my case through the 100mm scope, and even with a camera clip-in IDAS LPS filter, and 10-15 flats, darks and bias frames added. In short, I believe I'm doing correctly everything I've learned up to this point. This photo has made me think that perhaps I am using the wrong test subject, or at least with equipment better suited for other test objects, and I will try using the DSLR with my 250mm lens alone mounted on top of the scope and see how my results compare to yours. Also, if I'm not mistaken, I see that your stars are just beginning to trail(?), which suggests to me that you are guiding with perhaps only the mount, and not with any software (PHD2, for example)? I am using PHD2 and my stars after 30s are fine, but still the data is not coming in as I expected. It's all too new to me to get a handle on what's really causing my lack of data, as I've only had the rig up and running for testing for a couple of weeks but the weather has not cooperated and I've really only had maybe four partial evenings to try figuring this all out. So much to learn! Thanks for listening, if you've made it this far, and I don't expect an answer as I haven't really asked more than a rhetorical question or two, but this helps to work things through in my mind, and I will definitely try to duplicate your set up and see what I get.
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