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bdlbug

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About bdlbug

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    Star Forming

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    Northampton
  1. Thats my first hour of capture with astroberry/IDNI/Ekos finished and Mr Moon is illuminating the garden now so... I'm heading off to bed now - hopefully will have an interesting 1 hrs smash and grab image od SADR and crescent nebula to process tomorrow. Bryan
  2. You know - I grew up in Dundee and had the great privilege of viewing Saturn through the 250mm (10 inch) refractor built by Thomas Cooke of York in 1871 MILLS observatory on Balgay hill, - that was back in the 70's mind you... but that really fired me up into astronomy after the moon landings - great to hear about your first light experience tonight
  3. I am out tonight - anothe rpure experiment as I set up RPi4 with Astroberry this afternoon, went out to Obsy to set it up with the kit - it all just connected - INDi is great !!! So I set it to slew over to SADR and took a test image - but good grief ts got the crescent nebula in the frame so if kicked off a quick hour sequence - didn't expect to be capturing subs so quickly...
  4. I have gone back to my wide field setup with Samyang 135mm and ASI1600, but now taken the plunge to try out narrowband. I got the rig all setup last weekend and had some time yesterday to get it out and mounted on AZ-EQ6GT. I spent a while last night getting everything polar aligned - its been a few months..... and connected and talking with the laptop using APT. Got camera cooled down and then took ages to get a reasonable focus as I have now set up a motorfocus and belt on the Samyang lens, by the time this process had finished time had disappeared and I had an early start in morning, so I kicked off a very quick 1 hour capture using 10 x 120s subs for each of the new SHO filters - I didn't think anything useful would come of this quick experiment, but after some relatively light processing after using APP to stack the 10 subs per channel, I had enough data to create a bi-colour (HOO) and Hubble (SHO) versions below. Oh and I had no guiding set up either so I just let the mount trundle on sidereal.. Clearly its not a deep image and the resolution is around 6arcsec/pixel, so not high resolution - but in terms of what I want to do in imaging these large areas of nebulousness in narrowband and at this scale the image gives these objects a sense of place and scale in the universe. So I present my first narrowband images of the Cygnus Loop incorporating, NGC 6960, the Western Veil; NGC 6992, NGC 6995, and IC 1340, the Eastern Veil; NGC 6974 and NGC 6979 ;incorporating Pickering's Triangle Thanks for looking and any feedback you may have - but yes this image is only 1 HOUR of subs using asi1600 on unity gain setting cooled to -20degC Samyang lens set at f2 Bryan
  5. The last couple of weeks has been a new experience in imaging. I have on this forum and in general viewed an amazing number of exceptional images and fantastic locations, do you get comet envy?, but like many on the forum I have by necessity had to remain local. With exception of a quick trip to South Downs to visit elderly parent-in-laws. So below is my simple story in images from an exciting early Saturday morning to a light polluted experiment near a car park of dubious repute....... I used Samyang 14mm for the first wide field I used Samyang135mm at f2 for all the othe rimages except for a quick experiment with my AT72Ed telescope, that didn't really work that well so reverted back to 135mm All used my old but very serviceable and unmodified Cannon 600D mounted on a reasonably polar aligned a Skywatcher Star Adventurer. The longest exposure I could take without completely losing everything in light pollution was 20seconds, most of the images are about 6-12minutes made up of 20s and 10s subs. I use APP to stack and calibrate with Darks,Flats and Bias, then processed to extreme within PS, using AstroFlat_Pro and Topaz denoise. thanks for looking , Bryan C/2020 Neowise F3 Comet c/2020 Neowise F3 and noctilucent clouds (2am Saturday 11th july gt. houghton) Gt. Houghton, Northants, 11th July, Samyang 135mm Gt. Houghton, Northants, 12th July : AT72ED Malling Nature Reserve, Sussex. 17th July Samyang 135mm Gayton Marina,Northants, 20th July Samyang 135mm Reprocessed - Malling Nature Reserve, Sussex. 17th July Cannon 600D, Samyang 135mm F2, Skywatcher Star Adventurer, Berlebach tripod
  6. This is my last galaxy image for this season So, this has been a much harder to image process than anticipated, despite having IDAS D2 filter in front of everything the gradients I had were ridiculous - so the LED lighting put on path behind my house may have resulted in a darker garden, but the broadband sky glow really made a mess of the RGB integrations and merge. Software to the rescue; a combination of Pi with Deconv, DBE and photometric colour calibration saved the day along with a lot of fun with Photoshop, AstroFlat and Topaz Denoise Image details : 8hrs and 40mins total exposure in this image, 2hrs each channel with 40min extra in Lum... Taken between 15th-25th April in 6 sessions. Equipment: ASI1600 MM-pro with Baader filters through AT106EDT refractor on AZ-EQ6GT, Resolution: 1.13"x1.13" per pixel Field of View: 1.47° x 1.11° Wiki description for M100 (also known as NGC 4321) M100 is a grand design intermediate spiral galaxy located within the southern part of constellation Coma Berenices. It is one of the brightest and largest galaxies in the Virgo Cluster, located approximately 55 million light-years distant from Earth and has a diameter of 107,000 light years, roughly 60% the size of the Milky Way. It was discovered by Pierre Méchain on March 15, 1781 and was subsequently entered in Messier's catalogue of nebulae and star clusters after Charles Messier made observations of his own on April 13, 1781. The galaxy was one of the first spiral galaxies to be discovered, and was listed as one of fourteen spiral nebulae by Lord William Parsons of Rosse in 1850. NGC 4323 and NGC 4328 are satellite galaxies of M100; the former is connected with it by a bridge of luminous matter. This image has minimal cropping applied so, like the M51 I posted it shows the central galaxy in the background (and foreground) context of deep space. This image is also on Astrobin where it has been plate solved and mouse-over identifies the other objects and galaxies in the image, thumbnail link below: thanks for looking Bryan
  7. Wow - love the image and seriously impressive that you have captured this with round stars across the FOV. Guiding with 4m focal length telescope and imaging at <0.3" per pixel, Hats off to you and your setup (I sold my C11 as I never thought I could ever use it effectively for DSO imaging) Bryan
  8. Central England here in Northants looks good atm - just set up and guiding at 0.8 rms Final session on M100 and probably it for galaxies this season for me - looking to try out narrowband with wide-field Samyang 135 when some of the interesting nebula pop up from behind trees to my east later in summer enjoy the clear skies to those that have them tonight Bryan
  9. @CCD Imager - I uploaded the PNG version to SGL , if you click the image the forum will download you that full res image in a new tab, the image inline on the post has been auto-magically re-sized for inline viewing. if that doesn't work for you I've posted it on AstroBin now as well, so that has full details and ability to download full resolution - Thumbnail below links to AstroBin version
  10. ...M51 is such a beautiful galaxy and everyone has a different approach and processing - this galaxy season members of this forum have given us some stunners. This image has 8hrs total exposure. I captured 1hr Lum around 10th April in 2019 and exactly a year later another hour on 10th April 2020. The 2hrs each channel of RGB been a matter of capturing 10,20 or 30 subs round 9:30pm -11pm from 10th -22nd April depending on darkness of sky and before M51 disappears near the zenith as I cant see that from in my POD - its only time I have really been limited in imaging time due to my choice of obsy. All subs 120s with ASI1600MM-Cool, unity gain using Baader filters with an IDAS D2 in front of everything, Integrated in APP, processed PI and PS - Its been cropped to remove registration overlaps but nothing too severe - I think image could be cropped further but I prefer the wider view that presents the context of the galaxy against deep space, and there's 30 million light years of space between us and M51 - incomprehensible Bryan
  11. Neil - I definitely prefer the left side re-process, I'm about to get into my 8hrs of M51 data and that is an interesting approach to colour combining - I've never approached any processing on the individual channels before combining into single colour image - may have to give your approach a try out this weekend. Bryan
  12. same here just closed the dome, waiting for camera to warm up then off to bed.... I found the sky to be very bright tonight, so we will see if any of the subs make the cut.... night all, and happy hunting to everyone heading into the small hours Bryan
  13. @tooth_dr yep madness - I’ve even had to run up a small spreadsheet to keep track of the subs I’ve taken and what filter(s) I need to use next to keep on track - never had to do that before - Clear and no moon amazing Two months in a row - had that in March as well ... and I’m finally under 1 a/s rms guiding after so much tweaking and stuff over the few clear night in winter
  14. Back out again !! - 3 nights in a row, good grief, guiding back in the groove and hoovering blue photons on M51 for 30-40mins then off to M100 for a few hours - been the routine for past few nights - amazing. I'm up to nearly 8hrs on M51 so hopefully move on to processing this weekend. Unfortunately still getting quite a number of satellite streaks - had a look on heavens above and there are so many overpasses of Starlink these days...grrrrrrrrr Thank goodness for rejection algorithms in stacking Bryan
  15. I'm out in S.Northants, lovely and clear, guiding around 0.8a/s rms - which is very good for me. Adding to my M51 project before it disappears at zenith from my POD - have to say its only this time of year I really have any issues with lack of zenith. Lots of satellites up north anyway - just been photo bombed (again) - was that astarlink, its certainly V.Bright Bryan
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