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pietervdv

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Everything posted by pietervdv

  1. Great pic! I really like how you hunt down all these faint nebulae. You put in a lot of hours, but the results are clearly showing and bring something off the beaten track. Exactly what I would (try to) do if I had a remote observatory! Regards, Pieter
  2. Outstanding, what a nice structure! This is added to my bucket list... Pieter
  3. Thanks all for taking the time to look and comment. I took into account some of @vlaiv his great feedback and improved the seams of the mosaic. I also overlaid an old M31 taken some years ago and tried to reduce the burnt core. I improved the contrast in the spiral arms ever so slightly... Perhaps not perfect, but time to put this one to rest. Here is a new link for the Full size Thanks & regards, Pieter
  4. Thanks for your comments, I don't mind at all as they are all 100% correct. I appreciate you taking the time to comment in such detail! The pic is indeed a bit over sampled and the seeing in Provence can be pretty bad at times. The small defects during stitching indeed need some more attention, I'll sit down for that to rectify that. I stitched the panels manually in PS as my pc nearly went up in flames when I fed the mosaic to APP. About the blown cores, I understand what you mean. But I often find it looking too flat & manipulated when the cores are dimmed. Personal taste I guess... Thanks, Pieter
  5. Hello all, I have finally processed my imaging data from this summer's (August) visit to Southern France; there I joined my trusted imaging companions Frans Kroon and Maurice Toet for a great week. I'd set my sights on a 6 panel mosaic of M31; each panel is exposed for 2 hours, so 12 hours in total using a Luminance filter. Some nights were plagued a bit by high clouds so I had to deal with mild gradients and noise in some panels. My processing skills are also a bit rusty, but I hope I managed to make it look ok. I did not do any major processing on it, mere stretches and curves and stitching the panels together. I always have a preference for b&w as it reminds me of the works of the early astrophotographers (another explanation is; I am lazy and don't like to tweak endlessly behind a computer ) Equipment: Homebuilt 10" f/3.8 Astrograph with Wynne corrector on a Mesu200 mount Sensor: ASI-1600MM-cool cmos -10°C (it was T-shirt weather all night long) Exposure: 6 x 2 hrs (5 min subs for all 6 panels), totaling 12hrs. Filter: Baader Luminance Capture and calibration: Sequence Generator Pro and Astro Pixel Processor. You can find the highest res version on my website, the full size is 68 MP. Full res M31 Thanks for checking it out, Regards, Pieter
  6. I imaged this object myself last year and my effort pales next to your image. Especially the outer ha nebulosity is ultra faint. Hats off! It's a superb shot! Pieter
  7. Martin, It looks fantastic! Good to see you are liking your asi-1600! Best regards, Pieter
  8. Thanks all for taking the time to look and comment! The Berlebach Planet is made from Ash wood and extremely stable, it can carry 120 kg without breaking a sweat. Been very happy with it. Pieter
  9. Hello all, Last week I collected some o3 data from Southern France during my annual astro imaging field trip with 2 other imaging friends. The o3 shell in WR134 is very faint and could use even more exposure time. The HA data was made from my badly light polluted home locating in Belgium. I included a pic of my setup I drove 1000 km to get there. Equipment: Homebuilt 10" f/3.8 Astrograph with Wynne corrector Mount: Mesu 200 Sensor: ASI-1600MM-cool cmos -10°C Exposure: 14 hrs (5 min subs); unity gain setting Filters: Astrodon 5 nm H-alpha / Baader 4,5nm OIII 7 hours for each channel. Channels assembled as HA:O3:O3 Thanks for checking it out, Best regards, Pieter
  10. Very nice! There is no o3 component in the planetary nebula? Only h-alfa? Regards, Pieter
  11. Looks amazing and has your signature touch! (as usual off course ) Pieter
  12. Thanks! I have it set at the unity Gain setting. Seems to work well for me, never tried any other settings. Thanks! I like the filter very much, I had a Baader 8,5nm o3 in the past and this one is a huge improvement. I still need to do some more testing, but I have seen some halos around very bright stars. A fault that plagued their old o3 filter. Pieter
  13. Hello all, It's been kind of slow on the imaging front the last year; however during the last 2 weeks I gathered some data on the Pickering's triangle. It's a 2 pane mosaic; totaling 16 hrs of exposure time. It is my first bi-colour image, so go easy... I made some 100% crops that show some interesting details. No major post processing, just levels and curves and combining the channels. Equipment: Homebuilt 10" f/3.8 Astrograph with Wynne corrector Sensor: ASI-1600MM-cool cmos -10°C Exposure: 16 hrs (5 min subs) Filters: Astrodon 5 nm H-alpha / Baader 4,5nm OIII Channels assembled as HA:O3:O3 Thanks for checking it out, Regards, Pieter
  14. Hi all, Some feedback on the Baader 4,5 nm O3 filter; I like it a lot! It is a very nice match to my Astrodon 5nm h-alpha filter. The stars are very similar in shape and size, which will allow me to make some nice bi-colour images. If I may give one small point of criticism; there are again some halos noticeable (remember the old 8,5nm O3 filter) around very bright stars. It could be something else in my imaging train, not 100% sure yet... But overall I am happy with this purchase. It will be a return for me to colour imaging after shooting b&w for a long time. Here is the first light; a quick and dirty bicolour on NGC7000. Scope was my 10" newton, exposure was 2 hours in HA and 2 hours in O3. Colours mixed as HA:O3:O3. Thanks, Regards, Pieter
  15. Very nice, what kind of equipment was used? Pieter
  16. Great capture! You captured some very delicate details. Pieter
  17. This is a very cool picture, always interesting going for the ultra faint stuff! Pieter
  18. This is a very nice image and object! Never seen it before... What is the image scale of your system ? Pieter
  19. Hi Olly, Sounds like you owe me a beer for this great tip. ? I'll also go for it, I can tweak my imaging train to fit the 1,25" version in. Want to get into the faint planetary nebulae, guess I'll find out what it's worth pretty soon. Pieter
  20. Triangular shaped stars are often caused by pinched optics. Is your primary mirror still properly supported? Pieter
  21. Hi, Does anyone have any first hand experience with this filter? https://www.astroshop.eu/oiii-filters/baader-ultra-narrowband-4-5nm-oiii-ccd-filter-1-25-/p,62162 Curious to know how it compares to the 8,5 nm filter which I owned in the past and was not very impressed with. I am considering this as an alternative for the 5nm Astrodon o3. Thanks, Pieter
  22. Very nice image, not pushed to far in processing. Looks very natural, I like this a lot. Pieter
  23. Thanks! You only see the double diffraction spikes out of focus. You also see them when the spider vanes are not well aligned. The double spikes converge when in focus. The double spider is a very stable and great focus aid!
  24. Hello all, A year since my previous post on the deepsky forum, I have worked on another ultrafaint supernova remnant the last 2 weeks, G182.4+4.3 in auriga. I only found one other amateur image of it on the web which served as inspiration. The data was collected during a very nice clear spell (7 nights). There is an article on the object here with some images taken with a 1,5m professional instrument. I collected over 24 hours of data to compose this 2 pane mosaic. The data was stretched very harshly to reveal the faint details and had to be inverted to pull it from the background noise. Equipment: Homebuilt 10" f/3.8 Astrograph with Wynne corrector Sensor: ASI-1600MM-cool cmos Exposure: 288 x 5min = 24hrs Filter: Astrodon 5nm h-alpha Thanks for checking it out, Pieter
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