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About Hughsie

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    Star Forming

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    Football (Spurs), F1, fishing, long walks, real ale and a good book.
  • Location
    UK, North Essex
  1. Hi Chris, Yes, I have the .63 reducer but wasn’t sure whether to use it or not. Seemed like a bunch of added complication what with back focus. Also, when using the calculator on RSpec-Astro to judge dispersion and coverage it didn’t seem to make much difference. Happy to hear alternate views. John
  2. Thank you both for your reply’s. Most helpful. John.
  3. Hi, I have spent a lot of time reviewing tutorials and reading guides on spectroscopy and I am close now to pressing ahead with a night under the stars. In terms of gear I plan to use the following; Celestron Nexstar 6SE; Star Analyser 100 and the ZWO ASI174mm camera Just two questions, I have a ASI120mm and ASI1600mm, does one of these three cameras have a benefit over the other? Also, in regard to capturing the spectra I was planning to take short AVI's, then take flat and dark AVI's and then stack into Autostakkert to get a single image. Would that be the way forward or is there another better route to take? Thank you in advance, John
  4. It has been interesting reading the comments here. I have the spectroscopy bug and just waiting for a clear night. Looks like a great first effort Louise, hope I can achieve something similar. John
  5. I love the Z61. It allows such great wide field images such as yours. John
  6. I posted a 'work in progress’ of this image a few days ago prior to taking more sub-frames on a following night. The image below represents my interpretation of NGC 7635 in the Hubble Palette and has been framed to also capture M52 an open star cluster. Both targets are located in the constellation of Cassiopeia. The acquisition details are as follows; William Optics Z103ED scope with guiding provided by the William Optics 50mm guidescope and ASI290mm- mini guide camera. Imaged with the ZWO ASI1600mm Pro cooled camera using Baader 1.25” narrowband filters - Ha 7nm, Oiii 8.5nm and Sii 8nm. Acquisition software was Astrophotography Tool and guidance provided by PHD2. Sub frames all taken at a gain of 139 and offset of 50. All 5 minute exposures; Ha x 41 Oiii x 35 Sii x 40 Total integration time 9.6 hours. Backfocus remains an issue though I am gradually getting there with modest adjustments each time I image. Thanks for checking in. John
  7. The whole region of the Veil Nebula is one of my favourite targets and I have yet to image this part. Your presentation is lovely image and a fantastic commitment at 11 hours. Thank you for sharing. John
  8. The images are great especially the top one, crystal clear and sharp as a tack.
  9. Wow, looks like we are on final approach!
  10. My pit calls me after being out until 5am this morning. I thought the sky here would cloud over at 11pm but notice that the forecast has changed. Whatever your approach tonight, enjoy. John
  11. Hi, I am not sure what your circumstances are such as working full time, retired or somewhere in between. For what it is worth I have just completed the Open University course S177 Galaxies, Stars and Planets. It is a module, cost c£500 and ran from April to September. It needed c8 hours per week study time. The reason I took the course was to get a grounding of the science behind what I was observing. There is a little bit of maths involved and some use of Aladin - imaging software. Overall I found it fun and gave me a better appreciation of what I am observing. There is an end of module assessment which I have just completed involving short essays, math calculations and observational work. The course is run on a distance learning basis with as much or less contact with the tutors as you need. There is a text book to work through which is also accessible online via iPad etc. John
  12. Having fun with narrowband too. Great image Knobby.
  13. Nice to have Orion looking over my shoulder as I start my flat frame runs.
  14. Good luck to everyone out tonight.
  15. Back on the bubble nebula and M52 in narrow band. Reasonably lined up with Friday's images so hoping to add more data
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