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Droogie 2001

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Everything posted by Droogie 2001

  1. Had to post this. Super excited about the Falcon Heavy test this month and a potential launch in January 2018. Finally we get to see a picture of what it looks like for real. Its one impressive piece of kit even if it is looks like three Falcon 9's strapped together, cause that is what it is. If he can then land the three boosters, then that’s a bonus. Elon Musk states that whatever happens good or bad it should be quite a show. Looks like his personal Tesla car is going to be it's first payload. If successful it will be destined to roam the Solar System for millions of years...Bonkers. What ever you think about Musk you have to admire his shear ambition and ability to get things done. Link below with pictures and more info: https://spaceflightnow.com/2017/12/20/spacex-releases-first-pictures-of-falcon-heavy-rocket/
  2. Suffering similar issues with new neighbour recently installing an LED security light that is on 24 hours 7 days a week?! I have been out a few times since this has been installed and I have to say the sky now looks like a washed out grey rather than black or a deep dark blue. I never had dark skies before but this pretty much destroys any sense of darkness. The only saving grace is that the light is just about blocked by my fence though of course stray light and reflections are everywhere. As soon as I get up out of my seat I am dazzled with this thing so no chance of any dark adaption. To be fair I haven’t spoken to the neighbour about it yet as soon as I see them I'll politely ask them if they would consider switching the timer on, fingers crossed... Hope your move gets you sorted.
  3. BTW. Your nature images on your Flickr page are amazing! (so to are the Astro images )The stoat image reminds me of the first wild one I have ever seen when I was staying outside Norwich in Norfolk earlier this year. A wonderful experience.
  4. Not strange at all. Totally agree with you.
  5. I have been a YT subscriber for a while. In fact when I was starting out I used their videos as a means of understanding what equipment is needed and when. Really missed their videos as they are some of the best presented and produced ones out there. Glad they are active again.
  6. I have seen an example of this metal bust at the Science Museum in London. It is very odd when you look at it as you genuinely cannot see any reflected light. It would be fantastic to use it to flock the inside of my telescopes though I think the pricing is quite high. Not to mention any practical issues with using it.
  7. A bit off topic but I use the Photo booths at "Boots (the Chemist)" to print out my images. The images default with a insane amount of auto brightness which I switch off immediately. The quality is pretty good, usually need to tweak the contrast and brightness a little. Once you have the general settings they are usually the same for most of your images. It works out about 50p for a 6x4 and and 79p for a 8x6, some of the Boots shops do larger prints but I take these to my local photography shop. Have always found printers to be costly to run and if you buy cheap you definitely get cheap. Astro images are probably one of the hardest type of picture to print for the reasons you mentioned. Not as convenient as printing from home but saves a fortune! Though of course you cannot print out your documents out on these so I guess a printer is inevitable for you, maybe you could try one as a comparison or indeed seperate option? Mike
  8. Absolutely amazing detail in the image. The star at the bottom must have been a handful, its pushing out alot of light!
  9. A quick 2 hours image of the Horsehead and Flame Nebula. Trying to gather more data but weather seems to be saying otherwise… I can only image this early in the evening before it disappears behind my neighbour’s house so not a great elevation. Scope: William Optics Star 71 Mount: Celestron AVX Camera: Moravian G2-8300 – Mono Filter: Chroma Ha 3nm 5x1500s exposures (2 hours) at -30c Flats & BIAS Processed in PixInsight Thanks for looking.
  10. The objects you mention are rich in Hydrogen Alpha so maybe you could look at an HA filter, it wont give you colour images though. They come in different wavelengths. e.g. 12nm, 7nm. The lower the value the narrower the wavelength of light that it lets through meaning it can help cut out Light pollution. The trade off is that they will require longer exposure times becuase of this. Obviously being a DSLR will reduce its capture capability as it has a built in Bayer matrix (Tiny individual RGB filters on the sensor) Ha also requires longer exposure times again a limitation with DSLR's (heat) but not impossible, I have seen some very impress DSLR images taken in Ha. Back to colour images. Yes the more subs you have the better but 45 seconds sounds way too short so you need to increase this. What ISO are you using, do you have a light pollution filter? I would start at ISO 800 at 3mins and work your way up from there.
  11. Thanks I think you are correct about the filter wheels. I don't intend to change filters often. Having switched to NB recently I don't have any great urge to broadband what with living in a red zone. Let us know what you decide on.
  12. Swapping a single filter takes me about 10mins. This is because I am being extremely careful. Obviously dropping a screw or accidentally touching the filters with a screw driver is to be avoided at all cost. I wear good quality jewellers gloves and take my time. I guess there are other possible configurations. Maybe have an Ha, LRGB so you can add narrowband data to colour images? Not sure on Ha, OIII, RGB combination? Again this doesn't address issue but configurations I have considered. The last possiability would to purchase a 7 pos Moravian FW. I think these can be added the G2-8300?
  13. I have the same CCD camera as you so I am also restricted to 5 filters. Having moved to NB imaging I have added an Ha and OIII and removed one of the Broadband filter (green I think) and left it as that. So I have L,R,B,Ha,OII In effect I have made my Broadband filter non-useable. The reason I left them in is to act as a means of reducing dust entering the camera. For the moment I am enjoying the benefits of NB and currently have no urge to go back to Broadband yet, but will no doubt return to it at some point. In answer to you question using an OAG with an OIII filter maybe possbile but almost certainly not with an Ha filter (though I have not tried this) as it lets hardly any light through, guide stars will be very hard to locate. Focusing the OAG also presented some considerations due to the new NB being thicker than my Broadband filters which meant an adjustment to the focus of the OTA, this has a knock on effect on the OAG focus. The only time I use the LUM filter is to plate solve. This means my plate solving images are slightly out of focus but this does not seem to bother SGP. Most of this you are probably aware of but my other thought with your CCD is to purchase a seperate filter wheel and load these up with the filters. This means just swapping filter wheel instead of fiddly around with indivdual filters. I realise that this does not directly address your question but it is alternative possability. I always knew that being restricted to 5 filters in the CCD would cause this issue, but swapping filters around for me at the moment is my plan. As I say no rush for Broadband imaging for a while.
  14. Is it the gain setting perhaps? I dont know much about the ASI1600. Maybe post this is the Camera discussions?
  15. That is odd. Was the first image done in a single night? Maybe it was the sky conditions or guiding? Still at least you have made some progress on this.
  16. I downloaded your TIF file and stretched it with a simple STF stretch in PixInsight. Then opened my post calibrated & stacked image of the Soul Nebula from my Star 71. Quick background. I am imaging a 3.17 Arc Sec P/Pixel so I am undersampling therefore I drizzle my data at x2. This makes my star rounder and smoother than if I do not perform a drizzle. I have attached some comparison images as accurately as possible despite the slightly different imaging scales. Images with blue circles are my images and red are yours. There definitely appears to be brighter concentration to one side of some of the stars, this is particularly prevalently on the brighter ones. The dimmer stars seem to be nice and round and the effect may not be as apparent as they are simply dimmer. If it was guiding I would expect this to be more obvious in that the entire ‘body’ of the star would looked stretched like grains of rice, here I just don’t see that though the effect gives it the impression of guiding issues. This extra brightness is really quite puzzling. Are you using a LP filter? Do you see this effect with other filters? I guess you are using the same filter with your Samyang lens where you don’t see the issue. Maybe worth checking this option as the lower focal ratio etc of your Samyang may be masking the issue? Like everything it will be a case of trial and error, not always easier when contending with poor weather. I would also definitely check your curvature as per my previous post as even with this extra brightness it does seems to be drawn to the centre? Hopefully some else can offer some suggestions…
  17. Hi Richard, I think I can see what you are describing. The star halos on the left hand side / top centre appear to point towards the centre of the image? I see less of this on the right hand side? Have you checked your field flatness / tilt? I have used CCD Inspector in the past to fine tune my flatness. I would recommend downloading this (I think there is a free trial period) and having a look. Its a great bit of software, it may not have anything to do with this but it would be worth a look even to at least confirm have flat your field is. I'll also try and have a look at your data to see if I get the same results.
  18. Nice images. I have a Star 71 (1st edition) and have taken images of the Soul Nebula. Though with different cameras my image looks similar to yours, I dont see any major differences in your stars compared to mine. People complained that the original Star 71 pinched stars but I have rarely found this to be an issue, if at all. Not sure that the lack of calibration files would cause the issue with the stars, in fact your image looks very nice even without any calibration frames. Are you perhaps stretching the stars more with the Star 71 as opposed to the very fast Samyang lens? Do you protect your stars with a star masks etc?
  19. Good to hear some progress has been made. They do however need to look at their current communication level. Fingers crossed!
  20. A couple of years back I unintentionally began viewing fireworks through my OTA. The colours and brightness to them were amazing.
  21. I use an OAG on my Star 71 and it gave me great guiding results. Never have any issues with finding guide stars though sometimes there are only three or four to choose from. With it I can manage 25min exposures with my humble Celestron AVX mount.
  22. Sorry to hear you are having issues. If you still have no success, then I would be tempted to mention than you are a member of a number of Astro Forums and that if the issue isn't resolved to your satisfaction then you will have little choice in disclosing their company name so that other people are aware of their current service levels. May seem harsh but you are out of pocket, no camera and have waited a reasonable amount time, hopefully it will not come to this... Communication is one area where a lot of businesses fail on and one of which is likely to cause the most stress to a customer. I know this from many experiences including a number of astronomy related ones. Hope you get it resolved.
  23. Congratulations on purchasing the Nexstar 8SE its a great scope, I know because I have one myself! Only use it for visual really now but its good for planetary and lunar imaging if you decide to go down that road. Here is a link to the user manual in PDF format: https://s3.amazonaws.com/celestron-site-support-files/support_files/1152120348_1106811069manua.pdf Good luck!
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