Date
1 - 11 of 11
Heart and Soul and Supernova Mosaic- In Color!
|
On Wed, Dec 28, 2022 at 08:55 PM, AaronW wrote:
Stunning - I really like this framing!None of the PI mosaic tools worked for me. Stitching was terrible. I ended up using APP which worked great. |
|
|
|
On 12/28/2022 8:54 PM, AaronW wrote:
Did you try PI's Photometric Mosaic Script? I have heard it's made incredible strides and does a very nice job...am curious since I am planning to process my first mosaic over the next few weeks and was hoping the Photometric Mosaic script would make easy work of it.PhotometricMosaic actually is a full-fledged PI _process_ not just a script. Yes, it is very powerful and straightforward to use. My first mosaic attempt was this Rosette Nebula before PhotometricMosaic was added to PI: <http://astronomy.mdodd.com/nebulae-04.html> It wasn't especially difficult, but I remember having to fiddle with it quite a bit. I first used PhotometricMosaic on a 4-panel view of the Heart Nebula: <http://astronomy.mdodd.com/nebulae-26.html> and it was much simpler than the Rosette. With that success, I went for a 2-panel Soul Nebula: <http://astronomy.mdodd.com/nebulae-27.html> That too was easy. It's been two years since I did the Heart and Soul mosaics, so I don't remember the details of using PhotometricMosaic. I do remember reading instructions on how to use the process, and that's essential. I have a document titled "PhotometricMosaic by John Murphy" that I picked up somewhere in 2020, probably from the PI forum. Enjoy! -- Mike Mike Dodd Louisa County, Virginia USA http://astronomy.mdodd.com |
|
|
|
AaronW
Stunning - I really like this framing! Did you try PI's Photometric Mosaic Script? I have heard it's made incredible strides and does a very nice job...am curious since I am planning to process my first mosaic over the next few weeks and was hoping the Photometric Mosaic script would make easy work of it. Best, Aaron On Fri, Oct 28, 2022 at 7:58 PM Chris White <chris.white@...> wrote: Stars version here: https://astrob.in/g42mvx/0/ |
|
|
|
That looks great Kevin! Really nice FOV and framing. It's amazing how large the dynamic range is in this image. The heart is so bright compared to the SNR. I'm glad to see someone give some love to this gem! On Abin, I was the 5th person to image it (that I could find) so its pretty rare. Congrats!
|
|
|
|
midnightsnacks
Hi Chris,
I managed to find some time with HB3 in early November. Six nights in total, all with sub-optimal conditions. The first three nights, we experienced dense fog, while the last three nights, we had a full moon. I stacked the Ha data, and it turned out okay. I see lots of future potentials. I shot a little Oiii, but the data was dirty, so I didn't bother including it. I will likely return to this in years to come and gather good Oiii and Sii plus better Ha and some LRBG, this project will likely require a better scope and darker skies. Here's a link https://www.astrobin.com/t7k9nq/ I hope you enjoy it, Kevin. |
|
|
|
midnightsnacks
Thank you for the clarification Chris! On Oct 29, 2022, at 9:54 AM, Chris White <chris.white@...> wrote:
|
|
|
|
On Sat, Oct 29, 2022 at 09:24 AM, midnightsnacks wrote:
i Chris, there is definitely something there, I came across it myself the other week and plan to do some targeted runs on it soon.Thanks Kevin! I had help identifying it overnight, and I actually think it's G132.7+1.3 (also known as HB3) not the SNR you linked to. In any event it's very large and worth spending some time on bringing it out! |
|
|
|
midnightsnacks
Hi Chris, there is definitely something there, I came across it myself the other week and plan to do some targeted runs on it soon. Here's a little info on it https://www.aanda.org/articles/aa/abs/2002/20/aa2191/aa2191.html Attached is what I got so far, I think this was my 2nd night out with the Mach1 I. Keep up the beautiful work, Kevin. |
|
|
|
On Sat, Oct 29, 2022 at 12:20 AM, Dean Jacobsen wrote:
Nice image and nice capture on that... whatever it is... above IC 1795.Thanks Dean! That is the designation. Not too many images of it! |
|
|
|
Nice image and nice capture on that... whatever it is... above IC 1795.
TheSkyX does show that there is a supernove remnant - SNR HB3 - at that location so I think that is what you captured. I have never seen it before. Pretty cool. -- Dean Jacobsen Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/ |
|
|
|
Stars version here: https://astrob.in/g42mvx/0/
Starless version here: https://astrob.in/sbo2yt/0/ You can see what I believe to be a supernova remnant more easily in the starless version. This is my first mosaic, and it was quite a project for me. The mosaic itself is 2x2 panels imaged with Tak Epsilon 160ed and QHY600. Data was collected in Ha, Sii and Oiii. I had to spend more time on Oiii as the Ha (and even the Sii) signal was so overpowering. I found a clever pixelmath equation on The Coldest Nights website where channels were combined using a dynamic combination using Oiii as the reference. It is really a remarkable technique, so check it out if you are looking for a new way to bring out the Oiii in a scene like this. Registering and stitching the mosaic together was another hurdle for me. Pixinsight has put some work into developing new tools over the last couple of years, but all fell flat when trying to combine this data. I think the large field of this scope and camera combo had just too much field distortion for it to succeed. In the end I tried out APP, and it was brilliant. It seamlessly combined the panels and registered each channel so that the data lined up just perfectly and had a neutral background. When my trial runs out it's for sure a purchase! There is just so much going on in this massive field. It's a 7 x 4 degree field, at 1.46"/px resolution. The final image is nearly 180 megapixels at relatively high resolution. You can zoom in and see tons of amazing structures and details. There is a lot of fainter and more diffuse nebula in this scene, which is why I shared it in starless as well as a version with stars. You can find the stars version here: https://astrob.in/g42mvx/0/ One thing that I found really interesting is that there is what appears to be a huge supernova remnant above and to the right of the Heart Nebula. It has very nice filamentary detail in both Ha and Oiii. The Oiii is very faint here, and I actually spent some extra time on this panel in Oiii to bring it out more. I'm planning to reprocess just that panel at some point for the remnant, but my focus here was the two popular nebulae, Heart and Soul. On a side note, I cant find any information about this remnant, if that is what it is, so if you know what it is called and have any links the details that would be greatly appreciated! Captured using the Mach 2 GTO Unguided. As always, C&C is welcome. Thanks for looking. |
|
|
