Rodd Posted June 17, 2020 Share Posted June 17, 2020 (edited) Several beautifully rendered bicolor images of this target prompted me to make the attempt. Conditions started out fairly poorly for the Ha, but improved greattly for the OIII. Wolf Rayet stars spawn some of the most interesting targets in the heavens in my opinion, from Thor's Helmet to the Cresecnt Nebula, to this intriguing example. I knew it was going to be tough to pick up the full bubble, so I am fairly pleased in that much of the blue circular area is visible--though faintly. Bicolor images always give me trouble. This one was no exception. I was surprised at the amount of OIII emission not associated with the main feature--the arc structure and fainter bubble. I am just guessing, but it seems WR-134 must be a monstrously powerful star and the OIII throughout this image, having originated from the star, has been blwon out into the surrounding region. Then again--maybe it s just me!....regulating background OIII is one of the cjallenges for me with HOO images TOA 130 with .7x reducer and ASI 1600mmcool pro with 3nm Astrodon filters Ha: 137 300 sec OIII: 133: 300 sec Reduced stras a bit--not sure which I like better Edited June 17, 2020 by Rodd 23 Link to comment Share on other sites More sharing options...
Hughsie Posted June 17, 2020 Share Posted June 17, 2020 Hi Rod, that’s a lovely image. Can you tell me where WR 134 is located. Link to comment Share on other sites More sharing options...
Rodd Posted June 17, 2020 Author Share Posted June 17, 2020 9 minutes ago, Hughsie said: Hi Rod, that’s a lovely image. Can you tell me where WR 134 is located. Thanks Hughsie. WR-134 is located in Cygnus about 1/4 the way from Sadr to Alberio. between the Crescent Nebula and the Tulip Nebula. It is a fascinating region 1 Link to comment Share on other sites More sharing options...
Spitfire Posted June 18, 2020 Share Posted June 18, 2020 (edited) Great image! Is this one of those objects that can only be seen with the 3nm filters? I had a bit of difficulty finding this, but after some research found these coordinates: RA: 20h 10m 14.2s Dec: 36deg 10 min 35.07sec Geoff Edited June 18, 2020 by Spitfire addition Link to comment Share on other sites More sharing options...
Kinch Posted June 18, 2020 Share Posted June 18, 2020 Rodd.....are you taking the stars out, then putting them back in at the end. Not sure what it is, but something going on here..... Link to comment Share on other sites More sharing options...
Rodd Posted June 18, 2020 Author Share Posted June 18, 2020 1 hour ago, Spitfire said: Great image! Is this one of those objects that can only be seen with the 3nm filters? I had a bit of difficulty finding this, but after some research found these coordinates: RA: 20h 10m 14.2s Dec: 36deg 10 min 35.07sec Geoff Thanks Geoff. Link to comment Share on other sites More sharing options...
Rodd Posted June 18, 2020 Author Share Posted June 18, 2020 (edited) 1 hour ago, Kinch said: Rodd.....are you taking the stars out, then putting them back in at the end. Not sure what it is, but something going on here..... No. It’s called the bicolor plague. Always gets me. I’ll keep at it. I don’t know what it is either. You’d think with 22.5 hours of data it would be better. Maybe PI really does fall short. Maybe I really need a 3rd channel. But I like the bicolor palette for this target. I really am not fond of the sho palette for this Edited June 18, 2020 by Rodd Link to comment Share on other sites More sharing options...
Rodd Posted June 18, 2020 Author Share Posted June 18, 2020 2 hours ago, Kinch said: Rodd.....are you taking the stars out, then putting them back in at the end. Not sure what it is, but something going on here..... Here is a reprocess. Stars are better, but I lost some of the bubble. 1 Link to comment Share on other sites More sharing options...
Kinch Posted June 18, 2020 Share Posted June 18, 2020 ............"but I lost some of the bubble" 😟. Decisions.............Decisions ! Link to comment Share on other sites More sharing options...
Knight of Clear Skies Posted June 18, 2020 Share Posted June 18, 2020 18 hours ago, Rodd said: WR-134 is located in Cygnus about 1/4 the way from Sadr to Alberio. between the Crescent Nebula and the Tulip Nebula. Have I caught it in this wide but shallow mosaic or am I looking in the wrong place please? Link to comment Share on other sites More sharing options...
Rodd Posted June 18, 2020 Author Share Posted June 18, 2020 15 minutes ago, Knight of Clear Skies said: Have I caught it in this wide but shallow mosaic or am I looking in the wrong place please? I respnded on your thread--yes you caught WR-134. Its hard to see though because full resolution does not provide a very close in look. You shoukld see the bright arc (visible in Ha). Link to comment Share on other sites More sharing options...
MartinB Posted June 19, 2020 Share Posted June 19, 2020 Wonderful image Rodd. I make a point of not homing in to examine stars but prefer to look at the overall image. Your first two images move my soul far more than the reprocess! You've given the image some punch and this has worked really well. A new target to look out for! Link to comment Share on other sites More sharing options...
vindubs Posted June 19, 2020 Share Posted June 19, 2020 Awesome image. Link to comment Share on other sites More sharing options...
Rodd Posted June 19, 2020 Author Share Posted June 19, 2020 23 minutes ago, MartinB said: Wonderful image Rodd. I make a point of not homing in to examine stars but prefer to look at the overall image. Your first two images move my soul far more than the reprocess! You've given the image some punch and this has worked really well. A new target to look out for! Thanks Martin. Yes, I agree. I have gone back to the original image on my Astrobin page. I appreciate your input. I think I will collect more oiii and maybe rgb stars Link to comment Share on other sites More sharing options...
Rodd Posted June 19, 2020 Author Share Posted June 19, 2020 22 minutes ago, vindubs said: Awesome image. Thanks Vin Link to comment Share on other sites More sharing options...
Knight of Clear Skies Posted June 19, 2020 Share Posted June 19, 2020 21 hours ago, Rodd said: I respnded on your thread--yes you caught WR-134. Its hard to see though because full resolution does not provide a very close in look. You shoukld see the bright arc (visible in Ha). Thanks Rodd, think I'm looking in the right spot now. Link to comment Share on other sites More sharing options...
Rodd Posted June 19, 2020 Author Share Posted June 19, 2020 9 minutes ago, Knight of Clear Skies said: Thanks Rodd, think I'm looking in the right spot now. Cartes-du-ceil, which I use, has the progenitor star in its catalogue: HD191765. It will take you right to it. 1 Link to comment Share on other sites More sharing options...
fireballxl5 Posted June 19, 2020 Share Posted June 19, 2020 Great image Rodd - I very much preferred the 1st version👍 I found the area using star SAO 69541. This is the region from SkyMapPro v12 with some of the background and the Fov of my 150mm refractor/CCD combo... Link to comment Share on other sites More sharing options...
Rodd Posted June 19, 2020 Author Share Posted June 19, 2020 2 minutes ago, fireballxl5 said: SAO 69541 That maybe the star next to HD191765--not sure. maybe they are the same just with different designations (HD vs SAO). In either case--you got the right spot Link to comment Share on other sites More sharing options...
fireballxl5 Posted June 19, 2020 Share Posted June 19, 2020 1 minute ago, Rodd said: That maybe the star next to HD191765--not sure. maybe they are the same just with different designations (HD vs SAO). In either case--you got the right spot wiki is your friend. https://en.wikipedia.org/wiki/WR_134 Link to comment Share on other sites More sharing options...
Rodd Posted June 19, 2020 Author Share Posted June 19, 2020 15 minutes ago, fireballxl5 said: wiki is your friend. https://en.wikipedia.org/wiki/WR_134 Yep--same star!!! Link to comment Share on other sites More sharing options...
astro mick Posted June 19, 2020 Share Posted June 19, 2020 Extremely well done Rodd,that looks a toughie. Mick. Link to comment Share on other sites More sharing options...
Rodd Posted June 19, 2020 Author Share Posted June 19, 2020 5 minutes ago, astro mick said: Extremely well done Rodd,that looks a toughie. Mick. Thanks Mick....well, all bicolored images are tough for me. I manage to get where I am going but man is it a convoluted path. 1 Link to comment Share on other sites More sharing options...
Rodd Posted June 20, 2020 Author Share Posted June 20, 2020 (edited) Well--I had to reprocess. I read in a PI tutorial that narrowband images should be channel combined in the non linear state after stretching the individual stacks. this was new to me, so I gave it a go. It didn't help that I was working on a monitor that looked COMPLETELY different--so I had to process, post to my private page, process more, post to my private page....etc...etc...etc. Here is the result. Better stars, more OIII visible as faint emissions. Brightness was a huge issue as the monitor tends to portray very dark. Anyway--I think its better Edited June 20, 2020 by Rodd 2 Link to comment Share on other sites More sharing options...
Rodd Posted June 20, 2020 Author Share Posted June 20, 2020 So.....am I wrong? Link to comment Share on other sites More sharing options...
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