emyliano2000

This is probably the last galaxy for this season, not great but I don't find it very bad either. 20 hours and 37 min total integration time. I really love these Arp galaxies but my equipment and skies are not suitable for most of them. Ha: 74x300sec Bin 2x2, Gain 200 Offset 10; Luminance: 33x300sec Bin 2x2, Gain 125 Offset 30; Red: 80x180sec; Green: 76x180sec; Blue: 78x180sec; Bin 2x2, Gain 125 Offset 30 Thanks for looking. Emil

Found some more data from 2017 and 2018 so I thought of putting everything together. Equipment used: Eq6 hypertuned Skywatcher 200p Baader MPCC coma corrector IDAS LPS D1 Clip in filter Canon 450Da and Canon 700da AstroTech 106LE (690mm) APO Triplet with upgraded Moonlite focuser TSFlat 2" field flattener ZWO ASI294MC PRO cooled at -15°C IDAS LPS-D2 2" filter Eq3 Pro TS65 quadruplet f6.5 imaging telescope Qhyccd QHY183M Coldmos, cooled at - 20°C 7x1.25" Starlight Xpress USB filterwheel Baader RGB 1.25" filters, QHY183M: 40x120 sec for each RGB (Gain 11, Offset 😎 ASI294MC Pro: 57x120 sec IDAS LPS-D2 (Gain 125, Offset 30) 48x180sec IDAS LPS-D2 (Gain 125, Offset 30) Canon 450Da: 32x150 sec Canon 700Da: 10x120 sec Total integration time 10 hours Stacked in AstroPixel Processor and processed in Pixinsight and Photoshop CC 2021 Astrobin link: https://www.astrobin.com/qwjf1a/B/ Thanks for looking Emil

Well, I might need some help to pick up my jaw off the floor, that is truly amazing. 😍😍 Emil

Thank you Peter, much appreciated! 😊 Emil

Going through my files I found that I had some data on M3 from 2019. So now I have some luminance shot with the QHY183M on the TS65Q some RGB shot at the same time as the luminance in 2019, with a modded Canon 700D on the SW 130PDS and RGB shot with the 294M on the AT106 I calibrated and split the channels from the 700D subs, stacked all the R, G and B and made a synthetic luminance by stacking everything, including the luminance. Eq6 mount AstroTech 106LE TSFlat 2" field flattener ASI294MM Pro Cmos camera, cooled at - 15°C 8x1.25" ZWO USB filterwheel Chroma 1.25" RGB filters Qhyccd QHY5L-IIM guide camera 9x50mm finder-guider SW 130PDS Astromodified Canon 700D IDAS LPS D1 clip filter TS65Q QHY183M cooled at -20C Baader Neodymiun Baader Neodymium Filter: 73x60" (gain: 16.00) -20C bin 1x1 Chroma 1.25" Blue: 57x180" (gain: 125.00) -15C bin 2x2 Chroma 1.25" Green: 60x180" (gain: 125.00) -15C bin 2x2 Chroma 1.25" Red: 47x180" (gain: 125.00) -15C bin 2x2 IDAS LPS D1 Clip EOS: 5x120" ISO800 IDAS LPS D1 Clip EOS: 34x135" ISO800 Integration: 10.9 hours Emil

I only reduced the backlash, replaced the tripod with a stainless steel one and put a losmandy saddle on it. I'm extremely happy with its performance, sometimes running better than my eq6. 600sec at 420mm are not difficult at all, too bad the light pollution doesn't really permit it. Emil

Thanks. On a good night I get around 0.6" total RMS. This is one of the best I got.

With the summer quickly approaching and with Cygnus making its way back into the night sky, I went over some data captured 2 years ago. For the RGB I used a full spectrum modified Canon 600D with an IDAS LPS-D1 CLIP filter and for the Ha, the astromodified Canon 700D with a Astronomik 6nm Ha clip in filter and for both I used the cheap nifty fifty, canon 50mm f1.8 @ f4. RGB - 10x600sec ISO800 shot in Eversley, Bortle 4 Ha - 36x300sec ISO1600 shot in my back garden, Bortle 6 The cameras were mounted on a eq3 Pro mount and guided by PHD2 Thanks for looking! Emil

Very beautiful indeed, I love it! Emil

Thank you! With the ASI294M I have the option of using in the unlocked bin 1x1 mode, giving me a resolution of 8288 x 5644 using the cameras with 2.3um pixels. But in this mode and in combination with my AT106 I would be oversampled at 0.69"/px and my sky and the mount doesn't really allow it. Because of that I'm using the camera in Bin 2x2 mode with a pixel size of 4.63um and to get that high resolution, which is great for galaxy imaging, I choose to drizzle x2 the stacks, where the linear images are reconstructed and the resolution is doubled giving me in the end a high resolution image that I can easily crop without loosing any detais. Drizzle is usually used with undersampled images to get that sweet pixel scale between 1 and 2"/px, I do it all the time with my widefield setup because I'm imaging at 2.27"/px and drizzling is increasing the resolution, giving me a 1.13"/px pixel scale on the final image. In order to have a good drizzeled result, the I use high dither between the images in the aquisition process and this is giving me a nice, clean drizzled stack. The drizzle algorithm is different from upscaling the photos because it's reconstructing the whole image, pixel by pixel. At the moment I'm using Astropixel Processor and in the integration tab, right at the bottom, there is an option to drizzle the stacks. Before I used to do it in pixinsight. I hope this helps in any way. Thanks. Yes, I did blend the R with the Ha. What I did is opened a new file in photoshop, same size as the images, added the Red from the RGB, and on top of it I copied the Ha in Lighten mode. Many times the Ha is weaker than the R and to make it pop, I stretch the Ha layer quite a lot while keeping the background dark, even black clipped until the Ha areas are staring to come out on top of the R. I flatten the image and replace the R on a duplicate layer of the RGB photo with the new Ha-R blend, again in lighten more as I did before. The lighten mode will only show the the brighter areas from the new Ha-R blend, which of course will be the Ha regions that we want to add in the RGB image. I hope this helps. Emil

Congratulations!

This is my second galaxy shot of the season. I thought of redoing some targets that I tried before when I was only starting my AP journey and M81-M82 are a pair that were always on my mind. Living in Bushey, UK, on the outskirts of London, under bortle 7 skies and with the telescopes in the shade of a parasol that's protecting them from the direct beam of a streetlight doesn't really allow me to go deep enough to capture any IFN but I really don't mind. I'm perfectly happy that I can still get results like this. I have to integrate quite a lot though, 22 hours on this one. I drizzeled the stack so I can crop the galaxies separetely and preserve the details. Technical details: Equipment used: Eq6 AstroTech 106LE with upgraded Moonlite focuser TSFlat 2" field flattener ASI294MM Pro Cmos camera, cooled at - 15°C 8x1.25" ZWO USB filterwheel Chroma 1.25" LRGB and 3nm 1.25" Ha filters Qhyccd QHY5L-IIM guide camera 9x50mm finder-guider Qhyccd Polemaster Software used: Eqmod, SGP - Sequence Generator Pro, PHD2, Stellarium with stellariumScope, SharpCap for polar alignment Location: Bushey, bortle 7 Dates:Feb. 27, 2021 , April 4, 2021 Frames: Chroma 1.25" Blue: 39x180" (gain: 125.00) -15C bin 2x2 Chroma 1.25" Blue: 18x300" (gain: 125.00) -15C bin 2x2 Chroma 1.25" Green: 41x180" (gain: 125.00) -15C bin 2x2 Chroma 1.25" Green: 15x300" (gain: 125.00) -15C bin 2x2 Chroma 1.25" Lum: 29x300" (gain: 125.00) -15C bin 2x2 Chroma 1.25" Red: 41x180" (gain: 125.00) -15C bin 2x2 Chroma 1.25" Red: 15x300" (gain: 125.00) -15C bin 2x2 Chroma 3nm Ha 1.25": 9x300" (gain: 200.00) -15C bin 2x2 Chroma 3nm Ha 1.25": 41x600" (gain: 200.00) -15C bin 2x2 Chroma 1.25" Lo-Glow LP filter: 24x300" (gain: 125.00) -15C bin 2x2 Integration: 22.1 hours Stacked in AstroPixel Processor and processed in Pixinsight, EZ Processing Suite and Photoshop CC 2021 I hope you like them. Emil

I'm glad it helped. A friend told me about it a while ago and I've been using it with great success on a lot of my images Emil

Thank you very much for the kind words. I wouldn't go that far though, there are some incredible images here and I don't think mine is quite out there, but I really appreciate that you feel this way 🙂 Emil

I found out that in my m106 photo I have a 19.5 magnitude quasar, 12Gly away. Annotated in white. Emil

Seeing that my Orion's Belt and Sword photo was very liked on the Deep sky thread, I thought if posting it here too to show that good things can be achieved from bortle 6-7 using this superb lens. So 2 years ago, when I got the Samyang 135mm f2 lens, I couldn't wait for the winter to come so I can shoot Orion widefield. Well I did shoot it but I forgot about the data and 2 days ago when I decided to redo some of my 135mm work I stumbled upon this untouched data and I went to work Details and full resolution on my astrobin account https://www.astrobin.com/5i2906/?nc=user Emil

Thank you! I usually reduce the opacity so it doesn't stand out that much. I probably forgot to do it for this one. The halos are generated with the StarSpike Pro ad on in photoshop and for star reduction, I did use starnet in pix to create a mask and with that mask I used the EZ star reduction script which seems to work very well. On top of that I used the Ha stack as luminance a few times but only at 15%. I think I might've used the star reduction action from Noel Carboni's astro tools too. Emil

Thank you for the kind comments. ☺️ To be honest, I'm glad I did it now and not earlier because in the last 2 years I picked up quite a few new tricks and I don't think I would've managed to get a result close to this one, The RGB data is not great with a lot of gradients caused by the light pollution. It would've looked much better if it was shot from a dark location but sometimes you got to work with what you've got. Emil

Blast from the past. 2 years ago, when I got the Samyang 135mm f2 lens, I couldn't wait for the winter to come so I can shoot Orion widefield. Well I did shoot it but I forgot about the data and 2 days ago when I decided to redo some of my 135mm work I stumbled upon this untouched data and I went to work 😁 Details and full resolution on my astrobin account https://www.astrobin.com/5i2906/?nc=user Emil

This is my attempt with the original Ha file. I've done so many things that I couldn't keep count. I combined the LRGB in Astropixel processor, calibrated the star colour, Moved to pix for DBE, soft stretch, saturation and a few other things. Moved to photoshop where I blended the Ha, used the luminance again, Added contrast to selected parts, high pass filter, vibrance, noise reduction and so on. Emil

I managed toadd a little bit more data to it. I think it's quite an improvement over the original. Managed to get some detail and colour in some of the little fuzzies too. 😁 Here's the astrobin link https://www.astrobin.com/lbnn92/

Thank you. I originally did a Photometric colour calibration in pixinsight on the RGB stars. That gave me a pretty good colour from the start. The background didn't look great but it really didn't matter as I was only gonna use the stars from that blend. After that I flattened the background using GradX in photoshop, blackened it and added the Ha as the red channel and 10% luminance. Increased the overall saturation and with a blurred inverted star mask, I applied a few iterations of Noel Carboni's Increase star colour action. Some of the stars had a purple hue so I took it into Camera raw filter there I changed the purple hue to blue. Emil

After seeing on the web a nice cluster from the southern hemisfere with a lot of backround Ha, I had a zoom through stellarium to see if I can find a similar one that I can do from my back garden. It didn't take long until I found the NGC2112 cluster that sits very nicely inside the Bernard's loop, so I went for it. Originally I only shot 15x300sec Ha but that didn't give me the details I was after, so I added another 3x300sec and 13x600sec in the hope that I could get some structure in the hydrogen alpha cloud. Even with this amount of Ha the details are not as I was hoping so I presume that it won't be getting any better if I add more to it. NGC2112 is a 9th magnitude medium sized open cluster located 4 degrees northeast of Altanik, the east star of Orion's belt, 2800 light-years away from us and it contains about a hundred stars. The cluster is being on top of the Barnard's loop covering the eastern region of Orion. With an estimated age of around 2 billion years this relatively loose cluster lies in a fairly rich field and most of the stars are faint. In a 6-inch scope, look for a smattering of only a few 12th-13th magnitude stars. Eq6 AstroTech 106LE TSFlat 2" field flattener ASI294MM Pro Cmos camera, cooled at - 15°C 8x1.25" ZWO USB filterwheel Chroma 1.25" RGB and 3nm Ha filter Qhyccd QHY5L-IIM guide camera 9x50mm finder-guider Qhyccd Polemaster Date: 25.01 to 18.02.2021 Location: Bushey, bortle 7 Ha: 18x300sec and 13x600sec Bin 2x2, Gain 200 Offset 10 RGB: 12x180sec per channel Bin 2x2, Gain 125 Offset 30 Total integration time 5 hours and 28 minutes Emil

Thank you guys. I think I'll keep adding to it until I get close to around 20 hours. I try to shoot the luminance when the target is at its highest and the streetlights are turned off but I think a good light pollution filter would help a bit more. Maybe some 300sec on the RGB too. Emil

I found this and indeed with a 1.13 redshift it workes out at 12Gly http://www.astro.ucla.edu/~wright/CosmoCalc.html