Wyvern Posted April 20, 2021 Share Posted April 20, 2021 (edited) Good Evening All, After a nice streak of clear nights but not many narrowband targets about, at least not in my field of view from my garden. I've never been fully taken by the Wizard nebula, not in the same way as with the Jellyfish or the Rosette. But after a significant amount of imaging time it has started to reveal it's secrets. Total integration time 24.75h 143x 300s Ha 92x 300s Oiii 62x 300s Sii This shows the fainter details of the Ha around the nebula itself. Feedback always welcome. Wyvern Edited April 20, 2021 by Wyvern 6 1 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted April 20, 2021 Share Posted April 20, 2021 36 minutes ago, Wyvern said: After a nice streak of clear nights but not many narrowband targets about, at least not in my field of view from my garden. I've never been fully taken by the Wizard nebula, not in the same way as with the Jellyfish or the Rosette. But after a significant amount of imaging time it has started to reveal it's secrets. A great image, and nice to see the widefield view of the Wizard, and the background nebulosity. Brian 1 Quote Link to comment Share on other sites More sharing options...
Wyvern Posted April 20, 2021 Author Share Posted April 20, 2021 Thanks Brian! After the first lot of subs I just had this tiny nebula (for my FoV) in the middle so I decided to go nuts on the Ha. To be honest I'm not sure why I did 300s rather than 600s but i think it worked in my favour as it's still pretty low in the sky at the moment so neither the guiding nor the HFR were great. Hopefully I'll be moving from my current 20.26 bortle 5 to a 21.26 bortle 4 soon which hopefully will make a difference. Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted April 20, 2021 Share Posted April 20, 2021 (edited) 10 minutes ago, Wyvern said: Thanks Brian! After the first lot of subs I just had this tiny nebula (for my FoV) in the middle so I decided to go nuts on the Ha. To be honest I'm not sure why I did 300s rather than 600s but i think it worked in my favour as it's still pretty low in the sky at the moment so neither the guiding nor the HFR were great. Hopefully I'll be moving from my current 20.26 bortle 5 to a 21.26 bortle 4 soon which hopefully will make a difference. You got something funky going on with your OIII data? Looks like some weird halo on the image, or maybe that's how the OIII is in this target. I don't image below 30° and the Wizard only reaches that altitude at 2pm here, so would barely get two hours of decent image time on it. I shot this target last year, got 10 hours of Ha, but only 5 hours each of OIII and SII, so I need to add some data to it. Brian Edited April 20, 2021 by AstronomyUkraine Quote Link to comment Share on other sites More sharing options...
Wyvern Posted April 20, 2021 Author Share Posted April 20, 2021 1 minute ago, AstronomyUkraine said: You got something funky going on with your OIII data? Looks like some weird halo on the image, or maybe that's how the OIII is in this target. I don't image below 30° and the Wizard only reaches that altitude at 2pm here, so would barely get two hours of decent image time on it. I shot this target last year, got 10 hours of Ha, but only 5 hours each of OIII and SII, so I need to add some data to it. Brian Yeah, that always happens with my Oiii. I'm not sure what causes it but I seem to see the same pattern in my flats, but only the Oiii any help would be very welcome. Wyvern Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted April 20, 2021 Share Posted April 20, 2021 (edited) 14 minutes ago, Wyvern said: Yeah, that always happens with my Oiii. I'm not sure what causes it but I seem to see the same pattern in my flats, but only the Oiii any help would be very welcome. Wyvern It definitely looks like a filter problem, especially if your other flats are OK. How are you taking the flats? Led panel, sky flats, or some other method? Do you have another OIII filter to see if you get the same result? Edited April 20, 2021 by AstronomyUkraine Quote Link to comment Share on other sites More sharing options...
Wyvern Posted April 20, 2021 Author Share Posted April 20, 2021 (edited) That's taken with an LED panel same as the other flats. No other Oiii filter I'm afraid I wonder if it could be defective, might ping Antlia and find out. Ha for comparison Edited April 20, 2021 by Wyvern Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted April 20, 2021 Share Posted April 20, 2021 3 minutes ago, Wyvern said: That's taken with an LED panel same as the other flats. No other Oiii filter I'm afraid I wonder if it could be defective, might ping Antlia and find out. Ha for comparison I have the Antlia OIII filter, and it takes flats as they should look. I also use a flat panel and the flat wizard in SGP to determine exposure. Quote Link to comment Share on other sites More sharing options...
Wyvern Posted April 20, 2021 Author Share Posted April 20, 2021 I think I'll have to get it looked at then Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted April 21, 2021 Share Posted April 21, 2021 Fabulous image and cracking detail👍 1 Quote Link to comment Share on other sites More sharing options...
Bob-c Posted April 21, 2021 Share Posted April 21, 2021 A lovely image. Bob. 1 Quote Link to comment Share on other sites More sharing options...
Sonyme Posted April 21, 2021 Share Posted April 21, 2021 Hi Wyvern, in your 92 x 300 shot there appears to be a faint ring around the nebula. What would be the cause of this? Best Regards Gary Quote Link to comment Share on other sites More sharing options...
Wyvern Posted April 21, 2021 Author Share Posted April 21, 2021 2 hours ago, Sonyme said: Hi Wyvern, in your 92 x 300 shot there appears to be a faint ring around the nebula. What would be the cause of this? Best Regards Gary Hi Gary, that's what we were talking about in the posts above, it's something with the Oiii filter. I have emailed Antlia for support on the matter. Wyvern Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted April 21, 2021 Share Posted April 21, 2021 8 minutes ago, Wyvern said: that's what we were talking about in the posts above, it's something with the Oiii filter. I have emailed Antlia for support on the matter. I hope they replace it for you, there is definitely something not right with it. Do you think it might have been put in the holder backwards? Always worth reversing it to see if the problem still exists. Brian Quote Link to comment Share on other sites More sharing options...
Wyvern Posted April 21, 2021 Author Share Posted April 21, 2021 I'm 100% sure it's in the same way around as the Ha and Sii and they look fine so I'm pretty sure it's not that. Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted April 21, 2021 Share Posted April 21, 2021 4 minutes ago, Wyvern said: I'm 100% sure it's in the same way around as the Ha and Sii and they look fine so I'm pretty sure it's not that. Easy way to check, the side facing the scope will be the shiniest, and have more reflections. Quote Link to comment Share on other sites More sharing options...
MarkAR Posted April 24, 2021 Share Posted April 24, 2021 Superb image, well worth the time and effort. The Oil filter looks like it might have a bad coating. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.