Re: Helix - 200 hours of data
Stuart Heggie <stuart.j.heggie@...>
Processing discussion aside, it is a pretty amazing looking shot! I too didn't appreciate this full extent of the Helix before. Alas, way too low for me to try for. Stuart Heggie
|
|
Re: Helix - 200 hours of data
Roland Christen
That is pretty amazing! Never knew there was so much stuff surrounding the Helix.
Rolando
-----Original Message----- From: slawomirlipinski@... [ap-gto] To: ap-gto Sent: Sun, Sep 29, 2019 10:12 pm Subject: [ap-gto] Helix - 200 hours of data Hi all,
Sharing my latest narrowband image of the Helix, taken with my trusty Mach1 controlled by SGP - set up in the afternoon, polar align at dusk and pack up in the morning. Easy-peasy.
Some basic info:
-> The image is a blend of 0.55 HA_SNO + 0.1 HA_HNO + 0.35 HA_HSO. I know, not really scientific.
-> Integration (203 hours):
HA = 194 x 900s + 157 x 1200s
OIII = 124 x 900s NII = 88 x 900s SII = 167 x 900s + 22 x 1200s -> 4" refractor, ICX 814, coastal location 20deg South of the Equator.
-> The background looks a bit gritty, but the data is extremely stretched, since background st.dev in all masters was only about 1 ADU.
Astrobin: https://www.astrobin...q9xl7a/?nc=user
High resolution: https://cdn.astrobin....6_wmhqkGbg.jpg
Thank you for looking
Suavi
|
|
Re: Mach2 – How far down the list?
Horia
This is great news, thank you Marj. Kind regards, Horia
|
|
Re: Helix - 200 hours of data
Bill Long
Share the unaltered masters if you are willing, would love to look at the data myself and chat with you offline about the best way to work with it.
🙂
From: ap-gto@... <ap-gto@...> on behalf of slawomirlipinski@... [ap-gto] <ap-gto@...>
Sent: Sunday, September 29, 2019 9:59 PM To: ap-gto@... <ap-gto@...> Subject: Re: [ap-gto] Helix - 200 hours of data Hi Bill,
Yes, I did 4 iterations on OIII and 5 on the rest of the channels. I did see the worms, and these were actually mostly generated by a light noise reduction. I could not find settings that would not introduce these artefacts.
Given that I wanted to show the faintest extensions which only registered less than 1 photon per hour of exposure, there was no way to hide these. Even though the background looks gritty, the data is very clean and st.dev for background in all masters is just under 1 ADU.
Thank you for pointing that out Bill, I may one day try to reprocess the Lum.
|
|
Re: Helix - 200 hours of data
slawomirlipinski@...
Hi Bill, Yes, I did 4 iterations on OIII and 5 on the rest of the channels. I did see the worms, and these were actually mostly generated by a light noise reduction. I could not find settings that would not introduce these artefacts. Given that I wanted to show the faintest extensions which only registered less than 1 photon per hour of exposure, there was no way to hide these. Even though the background looks gritty, the data is very clean and st.dev for background in all masters is just under 1 ADU. Thank you for pointing that out Bill, I may one day try to reprocess the Lum.
|
|
Re: Helix - 200 hours of data
Bill Long
Did you use deconvolution on this? The background has wormy bits that are usually a dead giveaway that deconvolution was used and the algorithm set the globals incorrectly.
From: ap-gto@... on behalf of slawomirlipinski@... [ap-gto]
Sent: Sunday, September 29, 2019 8:11 PM To: ap-gto@... Subject: [ap-gto] Helix - 200 hours of data Hi all,
Sharing my latest narrowband image of the Helix, taken with my trusty Mach1 controlled by SGP - set up in the afternoon, polar align at dusk and pack up in the morning. Easy-peasy.
Some basic info:
-> The image is a blend of 0.55 HA_SNO + 0.1 HA_HNO + 0.35 HA_HSO. I know, not really scientific.
-> Integration (203 hours):
HA = 194 x 900s + 157 x 1200s
-> 4" refractor, ICX 814, coastal location 20deg South of the Equator.
-> The background looks a bit gritty, but the data is extremely stretched, since background st.dev in all masters was only about 1 ADU.
Astrobin: https://www.astrobin...q9xl7a/?nc=user
High resolution: https://cdn.astrobin....6_wmhqkGbg.jpg
Thank you for looking Suavi
|
|
Helix - 200 hours of data
slawomirlipinski@...
Hi all, Sharing my latest narrowband image of the Helix, taken with my trusty Mach1 controlled by SGP - set up in the afternoon, polar align at dusk and pack up in the morning. Easy-peasy. Some basic info:
-> The image is a blend of 0.55 HA_SNO + 0.1 HA_HNO + 0.35 HA_HSO. I know, not really scientific.
-> Integration (203 hours):
HA = 194 x 900s + 157 x 1200s
-> 4" refractor, ICX 814, coastal location 20deg South of the Equator.
-> The background looks a bit gritty, but the data is extremely stretched, since background st.dev in all masters was only about 1 ADU.
Astrobin: https://www.astrobin...q9xl7a/?nc=user
High resolution: https://cdn.astrobin....6_wmhqkGbg.jpg Thank you for looking Suavi
|
|
Re: Work In Progress: Gamma Cygnus Region in SHO (Experimental - C&C Welcome)
Ben Koltenbah
Thank you, Terri!
|
|
Re: Work In Progress: Gamma Cygnus Region in SHO (Experimental - C&C Welcome)
Terri Zittritsch
What a beautiful image. I really like the intense vivid false colors of the narrowband images. Everywhere you look in this image, there is some eye candy awaiting your glance.
toggle quoted messageShow quoted text
Terri
|
|
Re: Mach2 – How far down the list?
We just finished notifying the people on the Mach1 list and will start notification for the Mach2 list soon.
Clear Skies,
Marj Christen Astro-Physics, Inc 11250 Forest Hills Rd Machesney Park, IL 61115 Phone: 815-282-1513 Fax: 815-282-9847 www.astro-physics.com
From: ap-gto@... [mailto:ap-gto@...]
Sent: Sunday, September 29, 2019 10:21 AM To: ap-gto@... Subject: [ap-gto] Mach2 – How far down the list?
I have registered myself on the notification list for the Mach2 sometime in April, shortly after Marj announced it to this group. On the Mach2 page, there is a message reading:
"We are presently notifying people who had signed up on the Mach1GTO list before it was closed."
Is this still up to date?
Kind regards, Horia
|
|
Re: Howard and George Need Technical Support!!
DFisch
Steve, thanks also to you for such a nice “beginners lesson” on starting with luminance and working your way “up". I have yet to tackle full time AP and have dabbled with stacked images as they continue to fascinate me as to how to add data to a point on a picture. I am so blessed to have taken up astronomy late in life just to find what a great hobby that it is. I have found, just like many, that this forum is an unbelievable resource with rich commentary. I agree with Mike Hambrick that the tips and trick, pearls and pitfalls that are presented in this forum could fill a book. Rolands alone (aka Mr A-P) would fill one too…….oh….now I HAVE to buy THE BOOK. I am torn, I want Stowaways and Mach2’s to go out the door in Machesney Park ( note how even the A-P address has Mach in it) but then I want him to be at the keyboard filling pages with this unbelievable clear way he writes, teaches and spins a story. Thanks to all at A-P , I have yet to find a cranky person to deal with. What a great American success story. Just dont get burnt out answering too many emails by the brain trust of George, Wayne, Mark, Roland, Daleen et al. Crowd sourcing astronomy information should be a bit of an adventure. Dont expect to be spoon fed, failure is inevitable.
|
|
Mach2 – How far down the list?
Horia
I have registered myself on the notification list for the Mach2 sometime in April, shortly after Marj announced it to this group. On the Mach2 page, there is a message reading:
"We are presently notifying people who had signed up on the Mach1GTO list before it was closed."
Is this still up to date?
Kind regards, Horia
|
|
Re: Howard and George Need Technical Support!!
Even though Ron no longer runs the ccd-newastro group on Yahoo, it is still active under a different owner, Dave Wormuth. <http://groups.yahoo.com/group/ccd-newastro/>So we are asking for help. In years past, I would have referred people Not a lot of activity, but a beginner might ask for help there. Just a thought.... -- Mike Mike Dodd Louisa County, Virginia USA http://astronomy.mdodd.com
|
|
Re: Howard and George Need Technical Support!!
Steve Reilly
I have to agree with the comments about the printed/written documents. These are indispensable and if they can be downloaded and saved as PDF as many systems allow these days, they can be searched by keywords making in far easier to find specific information. That said it doesn’t hurt to have videos of topics that are particularly hard to understand subjects or techniques and you’d know by the number of questions you get. As far as the imaging side goes it really doesn’t play into your area as you deal with mounts and telescopes. It’s nice you would like to help but not what you’re there for. So having a list of reference material is a good idea. For those types of questions I’d refer them to the many forums about imaging that exist today as well as having them look for reference materials such as books.
With the vast amount of different equipment available to the amateur astronomer these days their best bet is either an imaging forum or three or the maker of their cameras, filters, software. I agree that the subject is a bit overwhelming when 1st getting started but research should be done before jumping in. With the availability of data that can be downloaded these days and trial periods on software you can easily try processing before getting to deep. And knowing what software/hardware you should have to have success is good ahead of time. When I started it was getting polar aligned well, focusing very well, and then guiding well. Those were the very basics to get any reasonably decent data set. Of course the sky conditions play a huge role as well. Once you get there, not always so easy sometimes for the beginner, then you get into longer exposures and more data.
When it comes to processing it all comes down to trial and error for the beginner or following a set procedure advised by experienced people on the forums and there will always be differences based on preferences. There are plenty of programs to do basic processing , and I always suggest doing luminance data only first as it’s the base of the image, and when you feel you’re getting the results you want start adding color data. Start with small projects and move up form there as you progress and expect it to take a good while and have some patience. It won’t happen in a week or 20. Look at it as learning a new technical art and the more you know about each component the better the chances of successes are. Each mechanical part plays a major role. Good tracking, well polar aligned, sharp focus (checked as needed for your telescope depending on mirror movement based on temperature changes), proper mounting of the imaging train……the list goes on.
Plainly said it really isn’t your purpose to advise on such matters. I mean if you get an email form a customer and it contains an image of a single frame that clearly shows what is most likely a mechanical error then yeah I’d see you making suggestions on what to look for and check. I remember way back when I had my C11 and I was using my AP900. I posted some images and Roland asked me to post a single image of the group. He looked at the image and determined rather accurately that the secondary was pinched causing all kinds of problems. I took the telescope to the dealer and they made the repairs, under warranty. Without Roland’s input I would have never known. I thought I had a mount issue while all along it was the optics. After the repairs I sold the scope, of course I made sure it was proper first, and got my 1st RC. Would have preferred an AP scope but those weren’t any easier getting back then either. Point being if it doesn’t involve the mount or your AP telescope getting into a deeper non AP discussion isn’t really going to be practical. What Roland did for me was show me where to look and what to do thus eliminating the mount in question. As usual I was amazed that Roland would take the time and interest to help me resolve this but then again his eyes and knowledge made it evident to him where I had no clue.
Far more long winded then I expected………and for the record, you guys have the very best customer service in the industry as far as I’ve seen. Happy to be an AP customer…..and yes, I finally did get an AP scope, my new Stowaway.
-Steve
From: ap-gto@...
Sent: Friday, September 27, 2019 7:44 PM To: ap-ug@...; 'ap-gto@...' Subject: [ap-gto] Howard and George Need Technical Support!!
Hi Gang!
|
|
Re: AP V2 ascom driver freezes
Barnett Helzberg
thanks Ray!
I'll try some more direct connection methods to narrow down the problem. It's a GTOCP3 box connected over a serial > usb cable to the Silex DS-600 which is wired to the observatory network an ethernet cable. My laptop has been connecting to the obs network over wifi. Kind a miracle it works at all with serial>usb>ethernet>wifi>laptop. I wish there were some kind of "connection stress test" I could use instead of waiting around for this intermittent problem to reveal itself. Barnett
|
|
Re: Gum 85 in HaRGB
slawomirlipinski@...
Thank you Stuart :-)
|
|
Re: Work In Progress: Gamma Cygnus Region in SHO (Experimental - C&C Welcome)
Ben Koltenbah
Thank you, Rolando and Stuart! What I'd love to have is at least two more nights real soon to gather more SII and Ha data. There are two nights coming up for me this next week, but unfortunately I'll be traveling over that time. When I return it's back to clouds, rain and gloom. Ben
|
|
APCC Standard to Pro Upgrade license key not working
Jim Windlinger
Has anyone had trouble upgrading their APCC Standard to Pro? I have installed it per the instructions but cannot get past the licensing screen. I can install the Standard version without issues. I can install the trial version too without issues. I suspect my license key has a problem. My email field in the license was changed between the Standard and Pro versions due to a data entry error at AP. That is the only thin I can think of that would cause a problem. I will ask AP to regenerate the code when they open, but I am at my remote observatory now and would hate to waste my 200 mile trip if there is a simple solution that I am overlooking.
|
|
Re: Work In Progress: Gamma Cygnus Region in SHO (Experimental - C&C Welcome)
Stuart Heggie <stuart.j.heggie@...>
toggle quoted messageShow quoted text
|
|
Re: GTOCP4 and Keypad updates
jon swanson
Thanks Marj. I also was able to get the update for the update for the CP4 to work via reloading the webpage for it and restarting. I am waiting on the keypad for a bit until I get all the new stuff (software, camera) working 100% first.
toggle quoted messageShow quoted text
I will sign up for the updates too. For some reason, I did not even see the menu at the top. I just kept looking at the menu on the left of the AP home page. I am up to speed now. Thanks again!
On Saturday, September 28, 2019, 12:27 PM, Marj marj@... [ap-gto] wrote:
|
|