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About Blazar

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    Sub Dwarf

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  • Interests
    Astronomy / Family Life
  • Location
    Hockley, Essex
  1. Wow...sounds like a good holiday! We are alright. Knobby is on the mend, and we have got out a couple of times. Weather has been shocking though. any pictures from your travels?
  2. Cheers Knobby (and Mrs K ;-))....I will have a look at APT. I guess this is going to take a while to figure it all out. I think I might need to look at whats needed in terms of any other kit (filters etc) for the DSLR. Not sure I want to spend anything extra though a the moment, just use what I have access to to get it nailed is my current thought. So lets try and put a night in the next month?
  3. Hi guys, Not been around in a while..kind of lost my way a little (life getting in the way). To remedy this, I took it upon myself to force Knobby out (therefore forcing me out) to go and try to start looking at my pathway into DSO imaging. I do a lot of Lunar (favourite), planetary (2nd favourite) but DSO's have been on the back burner for a while. I had started to get the equipment together a year or so ago. I bought a WO star71, pole master etc, borrowed a DSLR (from my daughter)...but have never had the impetus to go out and use it all. I remedied that this past week....and found it to be quite an interesting path from a technical standpoint. Making sure the equipment functioned, setting up & configuring the alignments. choosing the targets, then configuring the camera, focusing etc. then planning the shoot. Obviously there were a few mistakes....as you would expect. The camera had been used previously for terrestrial imaging...and I forgot to change the format (so no RAW files for me)...a few other things as well. however this all leads to greater understanding (and the creation of a checklist in future). So the efforts from the nights imaging (and remember even though darks were taken, they were not much use with JPEGs)...i give you M45 & M31....my second attempt at this aspect of the hobby. These are around 13 light frames of 60 seconds each. Iso 800 for M31, ISO1600 for M45. Stacked in DSS (with no darks or other bias), then finished in photoshop. Taken on a Canon 600d mounted to a WO Star71. No guiding (something I really have to nail...) Maybe next year I will try again I also know now I need to practise my DSO processing skills....any advice greatly recieved.
  4. look whose in charge now need to put some new wallpaper up
  5. Blazar

    I am back

    Oh yes....Good to have you back
  6. Welcome Knobby.....even though my night was possibly one of the most frustrating. Nice shots mate!
  7. Hi Andy. Quick question for you about the TAL 100RS focuser. I had one of the TALs start to play up, and having taken the focuser apart found one of the 4 small bearings has come apart. I have ordered some new ones (after I found the link on an old thread), but is there any other modifications / refurb I can do whilst its apart? It had started to slip a little, so did hear comments referring to roughing up the draw tube surface to aid grip? Thought I would ask an expert having drawn a blank searching on line. Hope all is well!





    1. Show previous comments  1 more
    2. jock1958


      I had some issues with my Tal 100RS focuser drawtube where it wasn't running true whilst racking in and out.

      Turns out there was a discrepancy on the flat of the draw tube,  one end measured 54.60mm, the other end was 55.04mm, that was enough for the focuser to slip when fully racked out.

      I flattened it out with a carborundum stone and removed the discrepancy and improved the grip (took some time though and constant checks with a  vernier gauge!!)

      Got all the above info off SGL member Moriniboy who had the same problem, he sent me some really good photos as well, I would contact him.

      PS No probs with the Tal focuser since. 


    3. Blazar


      Thanks Gents. one last question. Where do the shims go? Two came out when the draw tube was removed, but cannot see an obvious place for them to reside. Any assistance greatly appreciated.

    4. AndyH


      Shims? Mmm. Only thing I can think of is that they came from beneath the curved metal piece that holds the bearings.


  8. I also find Ventusky to be pretty cool....you can get a per altitude wind speed view (just change the altitude scale). https://www.ventusky.com/?p=48.5;-3.2;3&l=wind-10m
  9. James, A few more bits of info on the system I have that is experiencing an issue with OAc 1.4.1. I am using a Mac Air 6,2 & have upgraded to High Sierra (macOS 10.13.4 (17E199) kernel version Darwin 17.5.0. I have also tried using a 120mm-s camera and the same behaviours occur (app will start with no camera plugged in. Plug in the camera still fine. Rescan (finds the camera), select camera and application will shut down). Happens with both the 174 and 120. I tried it then with OAc1.2.0 and the same behaviour also re-occured. Regards
  10. Jupiter is very low at this point (like most of the planets), so looking and imaging through more of the atmosphere. Then you also have to consider the Jet Stream playing a part in the imaging nightmare we have at present. I have yet to get a good shot this year. I was looking at the transparency for my location and I think tomorrow night is meant to be good....but you never really can be sure ;-)
  11. Wow...Thanks All. Pretty excited to get a place. That 1st place is a cracker, and not bad for a first post!
  12. Another Essex lad...excellent. You can of course pop over to the Essex cloud dodgers page on this site....https://stargazerslounge.com/forum/157-essex-cloud-dodgers/ I'm just down in Hockley....
  13. An image of the mighty Clavius. One of the larger craters at 225KM in diameter. A very impressive walled plain that contains an arc of addition craters diminishing is size from 55KM (Rutherford) down to 12KM (Clavius J). Moretus is further towards the pole, and is around 114KM. It has a great central peak rising to 2700m) and numerous terraces. The tops of other craters can be seen towards the horizon, and the south lunar pole. Captured with a ZWO174mm (using a 642IRBP filter), on a Celeron Edge1100HD and CGEMDX mount. Image capture was via OACapture, stacked in Autostakkert2, Sharpened in Registax, finished in photoshop. This is an inverted image, as I find I can make out more detail this way. Full Size viewable on Flickr
  14. A shot of Tycho (to go with the other close up) and an exaggerated partial view of the ray system that surrounds this young formation (you can see the lines of ejecta material which form the rays moving away radially from the crater). This image was captured on the 28th December at 19:12:57 and comprised of a single capture of 2063 frames, of which only 236 were used in the stack. It was captured using a ZWO174mm camera (with a 642IRBP filter), and a televue x2 barlow). This was mounted on a Celestron Edge1100HD, in turn held on a Celestron CGEMDX mount. It was captured using OAcapture, stacked in Autostakkert2, Sharpened in Registax6 and finished in Photoshop. The full size version is on Flcikr
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