Can I capture the Homunculus Nebula from my my backyard?
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- čas přidán 6. 05. 2024
- In this video I attempt to capture the Homunculus nebula of Eta Carinae in the Carina nebula from my back yard using my Meade 10" SCT.
Link to Astrobin image: www.astrobin.com/fxwp17/
Equipment:
Telescope: Meade 10" SCT
Camera" ASI533mmPro
Filters: Optolong SHO and LRGB filters
Mount: iOptron CEM120
Code: QOSHFSR8Y6CECNKG - Věda a technologie
Wow Logan you did fantastic on such a difficult target. That image is awsome. Great video and clear skies.
Thanks Rob. It was a fun project to have a crack at. Clear skies
My, my ... what a great final image, Logan. You should submit it for an APOD. Nice fancy editing at the beginning, you had me laughing. But overall, great work and a great final image.
Clear southern skies for you.
Thanks Pat. I'm glad I managed to tickle your funny bone. I actually did submit it and they posted on the Sky facebook page the next day but didn't make it any further. Clear northern skies to you too, unless you need rain of course (I know, I stole your line there 😆).
Great Video, and some incredible work there Logan, and a stunning image at the end..nice…👏🏻👏🏻
Thanks very much Stuart. It was certainly a fun project and rewarding to get a pleasing final result as I had no idea when I started how I was going to approach it. I also learnt a lot about the Homunculus nebula in the process and although I knew about the Homunculus related to the brain, I didn't know about the alchemy version. CS
This is definitely your coolest image to date!!! 👍👍😎😎
Thanks very much Alan .CS
Great shot Logan, and a lot of PixInsight work, I am duly impressed! CS!
Thanks Dave. Yes there was a fair bit of 'wandering in the dark' while processing it in PI and PS (translation = wasn't sure what I was doing) but got there in the end. CS
Amazing work Logan and a very entertaining explanation of Homunculi
Thanks very much Nik. Hopefully I gave a homunculus amount of information 😁
@@LogansAstro 🤣🤣
Great video Logan, entertaining and educational. Thanks for learning me👍🙂
Cheers Don. Glad I managed to learn you something😄. Hope you are getting some clear skies there across the ditch.
Awesome image and a fantastic video!
Best regards
Luis from NY
Thank you very much Luis, greatly appreciated. ( hoping to get back to visit New York again sometime - such a fun city).
Very cool project. Your editing skills are incredible. I was taking some test shots on Carina nebula last night since I just got the l extreme filter. I was able to see the defiant finger in them, thanks to your video. We are so lucky to have this nebula down south.
Thanks Ross. Yes we are definitely lucky to have Carina down here - it has so many interesting areas that are deserving of their own individual images. The L-eXtreme filter should work very nicely on Carina. CS
Awesome shot Logan!
Thanks very much James.
Really excellent work on this very different target thanks for sharing your work
Thanks Tony. It was a fun project to do.CS
What a challenge that was to get well done Logan
Thanks Tich. I know the homunculus is only small in the image but I was pleased with what I managed to get. Clear skies.
This was a cool Video Logan! I think it cam e out great, you did a great job. CS
Thanks very much Jason. We have been getting some better weather down here recently to get some imaging done - Oh damn, did I say that out loud!! CS
@@LogansAstro Shhh don't tell anyone
Fantastic image Logan, very informative too! Surprisingly quite a lot of detail in the Homunculus nebula, very well done! You get all the good targets down south🤣 By the way, you need to let your cameraman go! You’ll do a better job yourself 😀 Clear skies mate👍
Thanks very much Simon. Yeah, I fired that cameraman - useless he was. I was particularly pleased to pick up the Ha around the Homunculus. Clear skies.
Never even heard of it, ty :)
Also gz on finally getting the internet in upside down land ;)
I think it is quite easy to not have heard of it as it isn't that easy to image given the brightness of the eta Car. The internet is great - hopefully we can get cars here next (the horse and cart needs repairs) 😅 .
Hey Logan - Well that was a very interesting little project, nice work bringing out that tiny nebula there. I'm still not sure I can pronounce Homunculi correctly !
Thanks Ollie. Yes it was a fun little project. I've seen a few variations on the pronunciation so I think close is good enough 😅. CS
Superb - love imaging Eta Carina - have you thought of using a Barlow lens and zooming on the details?
Thanks Peter. That's actually a very good idea. I have heard of people doing lucky imaging when attempting to capture just the Homunculus so taking the planetary approach to zoom in closer would probably work quite well. CS
Fantastic image, unfortunately something I won't ever see from the Northern hemisphere. Regarding the diffraction rings pattern around the bright star, those are due to the secondary obstruction from the SCT. There is a discussion on cloudynight on it.
Thanks very much and thanks for the info about the rings. Interesting that it was just the Ha and Red and not the blue and green.... is that usual for this sort of thing?
Good question. Different light wavelengths have different diffraction limited PSF, with red typically worse. So maybe you are able to resolve the diffraction limited spot of red but not other color.
Well done mate. When you took the 0.2 sec shots did you dither? How many 0.2 shots did you take?
Thanks very much. I took around 55 x 0.2 sec of each R, G and B. I didn't dither as I was only trying to capture the Eta Car so walking noise wasn't going to be an issue. Hmmm I wonder if I had dithered whether that might have help smooth out those concentric rings 🤔.
@@LogansAstro That's what I was wondering about too. If dithering might have helped with the rings. Though I do dither with all my images and I still do get the rings but maybe it is less due to dithering. Though I have never taken such short exposures as you did for the Homunculus
@@FPVA71 It also seemed to be filter dependent as the green and blue images had no rings but the red and Ha filters (picking up the more red wave length) had the rings so it could be something to do with the 533 sensor or the Optolong filters (prob the filters as I'm guessing if it was the 533's sensor, the rings would be there in the blue and green also... I think).
Newton’s Rings!
Thanks for checking out the video. My understanding was that was for solar imaging? Also for bright stars using an SCT?
@@LogansAstro if I’m not mistaken- as Newtons Rings appear through various different laser setups and sources- I’m fairly sure that they are able to be found in anything to do with lenses and optical setups in general!
I did hear also around the time of the eclipse that they can become a issue for some people as well- perhaps that’s why you considered this?
You take some amazing images man! Got my sub :)
I’m fairly new to astrophotography- and my imaging setup is a mishmash of failure currently- I have a refractor SV550 and also a out of commission eq6 pro mount I need to somehow fix 🤦🏻♂️🤦🏻♂️ there is not much info on the circuitry in them so it’s been a long while unfortunately 😢😔
@@TheSpectralArtisan Thanks for that info - definitely a possibility re the Newton's rings. I hope you get your setup up and running soon. Clear skies.
Does it have an ngc number or anything? So i can use stellarium to find out i cant see it through cloud? ;)
Just search for Eta Carinae (or Eta Car, the star (well it's actually two stars but whos counting).