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Everything posted by SteveNickolls

  1. Thanks for posting, Astrometry.net gives the area as- And on the WorldWide Telescope site- Cheers, Steve
  2. 2 But the downside to ever increasing light frame exposures is a cloud or knocking the mount etc. can ruin a lot of time from an evening's work. Try it all out and make your mind up what you prefer to do. Cheers, Steve
  3. Hi John, I use my Samyang lens at f/2 with an Astronomik 12nm clip-in filter in the Canon 700D modified DSLR. I have two ways of creating flat frames (either shooting with a manual remote or using BYEOS). For both methods I use a clean, large matt white bethroom tile illuminated evenly and place the lens a 3"- 4" inches away from the tile and not affecting the illumination of the tile. With the Camera in Av setting I then take multiple RAW flat frames (x50) and thereafter use the master flat for subsequent stacking in DSS. If you get the histogram on the camera/BYEOS between a third and half way across the flats are fine to use. Hope this helps. Cheers, Steve
  4. Thanks for your update, I also help you recover from the 'flu as quickly as possible. ? Cheers, Steve
  5. I'd say no but why not try it and find out practically. You can get amazing results when you least expect too. Cheers, Steve
  6. Be guided by what you practically get. ? Last night there was a decent Moon shining so on a darker evening you would get the histogram more to the left as well. Cheers, Steve
  7. If your camera is usually located within 20m of an indoor location (kitchen etc. then I'd suggest using a program such as BYEOS and one of these quality active cables- https://www.lindy.co.uk/cables-adapters-c1/usb-c449/20m-usb-2-0-active-extension-cable-p510 You can then control imaging from the warmth of indoors with no worry over the laptop. Cheers, Steve
  8. Thanks, The Samyang lens is reviewed here-https://www.lenstip.com/index.html?test=obiektywu&test_ob=442 I can only add I have been extremely happy with mine which I always use at f/2 with a modified Canon 700D. I'm sure other SGL-ers with the lens will similarly vouch for it. The RedCat 51 has a lot of positive, desirable features but the speed of the optics (from my point of view) isn't one of them. If you bought the Samyang lens (it retails around £440 new) I don't think you would be disappointed. ? Cheers, Steve
  9. +1 to all that. However it's 51mm objective and f/4.9 optics light grasp pales against the Samyang 135mm f/2 lens. Apples and pears though. Cheers, Steve
  10. Thanks for posting. Any chance someone could video the programme of events to reach more hobbyists? It would make a good resource for the future. Good luck with the events. Cheers, Steve
  11. Quite agree, when I made the count on Saturday night I could see only 8 stars but my son who is in his early 30's could count 17 (that's not including the framing stars btw). Converting the readings off my new SQM-L meter showed the VLM at that time was just over Mag 5. We submitted both reports to the CPRE. Cheers, Steve
  12. I'd think the problem for a DSLR would be bringing it back into a warm atmosphere after a cold imaging session where dew would form on the cold body of the camera and potentially inside connections etc. I always replace the lens cap before bringing the camera inside and secure the rubber cover over the USB port. A few times recently ice has formed on the outside of the camera body (a Canon 700D) and I leave my camera in the colder kitchen covered with tea towels so that it can warm up more slowly than in the rest of the house. The following morning it has warmed up to ambient temperature and can be surfaced wiped and stored. I've only imaged with the laptop outside once and when I'd brought it inside I left it running on mains power for 15 minutes to ensure it had evaporated away any residual ice/water. Cheers, Steve
  13. Thanks for posting. With the telescope at 360 mm FL you are pushing the SA at its limits so a good attempt without guiding. If you used Start Tools for processing it has the ability to turn eggy stars into round stars if you needed that. Cheers, Steve
  14. SteveNickolls

    Orion REvisited

    From the album: Next Attempts at DSO's

    It’s been a few years since I last imaged objects in Orion which is favourably positioned right now. The night of the 30th January 2019 presented an opportunity albeit very cold to image using my modified Canon 700D DSLR, Astronomik clip-in 12nm Ha filter and Samyang lens on the CG-5 mount. By the end of the session frost covered the equipment. This image is composed from 12 x 300 second and 16 x 170 second light frames taken at f/2 and ISO 400 and stacked in Deep Sky Stacker with 10 x 180 second and 47 x 300 second dark frames and master flat and bias frames from my library. Subsequent processing was done using StarTools. A 30% layer of the monochrome image was added to the RGB using the LAYER Module to enhace the brighter regions. The resulting image has captured a roughly 9.6 x 6.3 degree area with Saiph to the lower right to Mintaka upper left, the area incorporating M42 to The Flame Nebula and Barnard 33 (Horsehead Nebula).

    © SteveNickolls 2019

  15. The photo on page 21 is interesting- Shedding_light_-_a_survey_of_local_authority_approaches_to_lighting_in_England.pdf Courtesy of the CPRE. Regards, Steve
  16. Unsure if you are imaging in Alt-Az or EQ and what optics. Agree you should be fine for longer exposures wrt field rotation (if imaging in Alt-AZ) even with Orion being SE-S-SW so your mount/equipment set up may be failing you in one or several ways. Many potential culprits. Let us know more of your set up to potentially help out ? Cheers, Steve
  17. http://www.astrofriend.eu/astronomy/projects/project-star-adventurer-angled-viewfinder/project-star-adventurer-angled-viewfinder.html https://www.darkframeoptics.com/product/polarite-right-angled-polarscope Cheers, Steve
  18. Well done, thanks for posting. Total cloud and mist here overnight and it's still here. ? Cheers, Steve
  19. If the weather is willing so am I. Cheers, Steve
  20. Never having got on with the SA's wedge (mine was very coarse and stiff) I found attaching the SA to one of these (I had an old one in the shed) a boon-https://www.firstlightoptics.com/celestron-mounts/celestron-heavy-duty-alt-azimuth-mount.html Very easy to set up and use, reducing the height of the legs to little over half way and adding a 3kg house brick in the eyepiece tray keep everything very stable. Cheers, Steve
  21. Oh please, do go on. How have you found the roll out of street lighting in the county? ? Best Regards, Steve
  22. Hi, Would this be any help? http://www.astrofriend.eu/astronomy/projects/project-star-adventurer-angled-viewfinder/project-star-adventurer-angled-viewfinder.html Cheers, Steve
  23. Thanks for sharing this review, a great way to put your endevours all together. You have certainly managed to overcome the light pollution where you image from-well done. Cheers, steve
  24. Hi Doug, Thanks for posting this. It's fascinating to see how others have fared. I've kept an astronomy log and run each season from June through to the following May and attach a table comparing seasons from 2012-13 to the present. Comparison of monthly observations 2012_2019_Seasons.docx This season has been exceptional without feeling that way, I think it is in some part down to imaging on the clearer nights and observing when conditions are less good but maximising opportunity whenever you can. Fascinating to see how others have fared. Clear skies, Steve
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