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alacant

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Everything posted by alacant

  1. Nice data. There is some lovely detail emerging. StarTools v1.8.518 I think the noise is under control. All I did was set a 2px NR after tracking had been turned off. TBH, I don't think it needs any. Cheers
  2. No idea. Why did you remove it? What will help with the halos is careful choice of the second AutoDev ROI, including the selection I already indicated. If that's not what you're after, you then have st's Deconvolution (use the manual non saturated star selection) and as a final line of defence, the Shrink module. Post your data if you like. Cheers
  3. Hi You still can and should use flat frames. Just take a set for each night. Pre-process each session's light frames with their respective flats. Then register them. Stack as normal. Stars: make sure the second AutoDev includes at least one saturated star, but don't forget to leave some room for the fainter stuff. Nice image. HTH
  4. Hi Nice shot. +1 @almclregarding flat frames. They can make or break an image. Or at the very least, make it easier to process. There is also a corner gradient. Moon? This is with StarTools' latest beta. Synthetic flats to the rescue!
  5. Silicone responds well to any constraints placed upon it without introducing any of its own. A rigid adjuster allows the mirror to slide or introduce stress. On our Bresser f3.9, silicone is the only way we've found which allows us to retain collimation throughout a session. That has a 9 point support. Placement of the silicone is pretty straightforward; wherever you have cork/felt/nylon to glass contact. On the small 130 mirror, it's self explanatory. Cheers
  6. Yes. Have a look at this post. The firmware indicated in this post has been tested and known to work with the t7c and t7m cameras. Connect your t7c to a usb 2 port. Next, navigate to the bin folder: cd /whereever/you/downloaded/to/bin Then it's simply: cd armv7 $ ./zwo_FWTool_USB2 -i ../firmware/ASI120MC-compatible.iic -t li2c That's it. If you only know windows, then best to get a linux user to do it for you. It takes less than a minute. Cheers and HTH
  7. There is a file called: readme in the the folder in the link I sent. Try doing what it says. Tell us which bit you can't do. Or just go along to a local astro club. They'll be happy to install the firmware for you. Cheers
  8. Hi The t7c works well under Linux. You need to upgrade to this firmware. The same upgrade works also for older zwo models. HTH
  9. Hi everyone Can anyone confirm these as the correct motor? TIA
  10. Hi Yes. It's easy to do and makes the diffaction even and smaller; there are no dark areas in the diffaction pattern. The silicone blobs should be applied so they flow up the side of the mirror where the clips were when the mirror is replaced. Practise the amount you need to achieve this by using a curved block of wood. Apply the correct amount of neutral silicone, push the mirror gently into the cell and leave to cure in a horizontal surface for 24 hours. Unless you plan on hitting the tube hard whilst upside down, the mirror will not shift. The main advantage of this method however is not the tighter stars, rather the ability to hold collimation at all angles, before and after meridian flips, and between sessions, even if you transport the tube between locations. Cheers and HTH
  11. It looks quite dated. For example, there's the m42 cc which may never have made it out of Taiwan. But anyway, I don't think they do retail. Cheers
  12. That's lovely. TBH I don't think you're missing much in the way of colour in the nebula. It's all red! I like your coloured stars and how you've got more detail in the red. Compared with the UHC, the duo band filters are €silly and son't seem to do as good a job, but of course YMMV. Thanks for posting.
  13. € 117,14 | GSO-Corrector de Coma MPCC para telescopio Newtoniano, 2" https://a.aliexpress.com/_u7l29G
  14. Hi If you don't like the built in debugger, just run under gdb and look at the bt. Nikon, so try libgphoto2, available from the same vendor as kstars. AP, so there are three indi_lx200apxxx drivers for the mount. Try each in turn in permutations with the camera driver until you reach stability. Perhaps make a separate EKOS profile for each? Cheers
  15. The prescription changes. Ours is an old Hungarian model. The mass produced Chinese varieties may give different results. YMMV. The only way is to... Correct. Do post your findings. Cheers.
  16. ? Try this. You are able to adjust to a tolerance of 0.16mm?!
  17. Google;) A search confirms what it says in the box. Pragmatism is however IMO by far the best approach. We use 53mm for the 130 and 55 for the 200. But just try it. You may not notice any difference; The correction still works. All that happens is that the stars get fatter.
  18. F=600mm, working distance = 51.66mm F=800mm, working distance = 53.66mm F=1000mm, working distance = 55.0mm F=1200mm, working distance = 54.66mm > 1500mm, working distance = 54.60mm
  19. ? But anyway... You'll be given the correct spacing along with the cc. Lose your adapter. We use a 1mm optical path t-adapter and an 8mm extension ring.
  20. Yeah. It happens, although I see in your details 'Rock64 with INDI & Ekos/Kstars', so you've most of the battle won:)
  21. I sense from your reaction that you too sir are also well versed in failed meridian flips and dropped Internet connections, which invariably occur at three in the morning!
  22. Hi everyone Our target-at-a-sensible-distance-from-the-moon on Saturday was ngc7293. Still using the UHC and with the Mediterranean haze developing at low altitude to the south, this one took on a blue cast. To correct, I used StarTools' Compose, Colour and NBAccent modules: HOO with blue in the latter. Thanks for looking and do post if you've had a go at this with a dslr and a 130. eos700d + GPU cc. ~3 1/2h @ ISO800
  23. Hi everyone Here is a HOO of ngc1499 from a UHC filter with the moon very close by. The filter does a great job on excluding the glare. Thanks for looking and do post if you've had a go. We'd be particularly interested in dslr + UHC/L-eNhance/L-exTreme combinations. eos700d on 130pds + GPUcc ~10h 30 @ ISO800 ***EDIT. An in-your-face version. Not sure...
  24. Really? What's missing? Cheers
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