Allinthehead Posted May 14, 2019 Share Posted May 14, 2019 When i sold my Epsilon i knew i could well end up regretting it, but i have to say i'm impressed with the quality of the Esprit 100, nice round stars and a distinct lack of diffraction spikes. Considering this is only 4 hours through a large amount of atmosphere given it's low elevation i think it has turned out okay. It took two nights to capture the data and i had an issue with my autofocus on the second night where i lost almost 2 hours in subs that were well off focus, no idea why it happened yet. I also had an issue where my guide star would just shoot off in Dec, again needs further investigation. There's always something. I have serious fetish for dark nebula and the dark dust in emission nebula, so in this image i tried to highlight just that. The dark dust here obscures the emission areas and perhaps even the star thought to be the source of ionisation for the Nebula J205551.3+435225. Link for anyone interested. http://www.caha.es/newsletter/news05b/Comeron/ngc7000.html 4 hrs in 300 second subs with an Asi 1600 and an astrodon 5nm ha filter. Unity gain -20C. Mount: AZEQ6 Stacked in APP 2*drizzle Processed in APP and PS Hope you like it, and please click on image for higher quality. Richard. Link to comment Share on other sites More sharing options...
souls33k3r Posted May 14, 2019 Share Posted May 14, 2019 Beautiful Richard. Nice one mate. Link to comment Share on other sites More sharing options...
alan potts Posted May 14, 2019 Share Posted May 14, 2019 Very nice indeed, low it don't hardly get up at all here yet, 4 in the morning maybe, er I'm in bed. Our weather is poor at the moment, actually think of putting the heating on. Alan Link to comment Share on other sites More sharing options...
Adreneline Posted May 14, 2019 Share Posted May 14, 2019 Very nice! - I like it a lot. I have been imaging the nearby Sadr region using my ASI1600 at unity gain and -20C but with just 120s exposures through a Samyang 135mm at f2. As I am still very new to the ASI1600 can ask what offset you used - was it 50? Thank you. Adrian Link to comment Share on other sites More sharing options...
Knight of Clear Skies Posted May 14, 2019 Share Posted May 14, 2019 15 minutes ago, Allinthehead said: Link for anyone interested. http://www.caha.es/newsletter/news05b/Comeron/ngc7000.html Interesting thanks. Many online sources still quote Deneb as a possible ionizing source but reading the linked article that seems unlikely. Link to comment Share on other sites More sharing options...
Allinthehead Posted May 14, 2019 Author Share Posted May 14, 2019 6 minutes ago, souls33k3r said: Beautiful Richard. Nice one mate. Thank you kindly Ahmed. 2 minutes ago, alan potts said: Very nice indeed, low it don't hardly get up at all here yet, 4 in the morning maybe, er I'm in bed. Our weather is poor at the moment, actually think of putting the heating on. Alan Thanks Alan. You've gone from one extreme to another with the temperature over there. 4 minutes ago, Adreneline said: Very nice! - I like it a lot. I have been imaging the nearby Sadr region using my ASI1600 at unity gain and -20C but with just 120s exposures through a Samyang 135mm at f2. As I am still very new to the ASI1600 can ask what offset you used - was it 50? Thank you. Adrian Thanks Adrian. I'll look forward to seeing your image. The 1600 and the 135 are a great combination. I just used the unity gain setting which automatically sets the offset. I think it's 50. Link to comment Share on other sites More sharing options...
Allinthehead Posted May 14, 2019 Author Share Posted May 14, 2019 1 minute ago, Knight of Clear Skies said: Interesting thanks. Many online sources still quote Deneb as a possible ionizing source but reading the linked article that seems unlikely. You're welcome. Some sources also quote HD 199579 as the offender. Link to comment Share on other sites More sharing options...
Xiga Posted May 16, 2019 Share Posted May 16, 2019 On 14/05/2019 at 17:42, Allinthehead said: When i sold my Epsilon i knew i could well end up regretting it, but i have to say i'm impressed with the quality of the Esprit 100, nice round stars and a distinct lack of diffraction spikes. Considering this is only 4 hours through a large amount of atmosphere given it's low elevation i think it has turned out okay. It took two nights to capture the data and i had an issue with my autofocus on the second night where i lost almost 2 hours in subs that were well off focus, no idea why it happened yet. I also had an issue where my guide star would just shoot off in Dec, again needs further investigation. There's always something. I have serious fetish for dark nebula and the dark dust in emission nebula, so in this image i tried to highlight just that. The dark dust here obscures the emission areas and perhaps even the star thought to be the source of ionisation for the Nebula J205551.3+435225. Link for anyone interested. http://www.caha.es/newsletter/news05b/Comeron/ngc7000.html 4 hrs in 300 second subs with an Asi 1600 and an astrodon 5nm ha filter. Unity gain -20C. Mount: AZEQ6 Stacked in APP 2*drizzle Processed in APP and PS Hope you like it, and please click on image for higher quality. Richard. The early bird catches the NAN! Looks great Richard. Not sure why exactly, but my eye is drawn to the upper-left, and the teeny tiny stars look great 👌 Do you plan on adding any other filters to this? ps - Glad the Esprit is working out great for you 😀 Link to comment Share on other sites More sharing options...
ollypenrice Posted May 17, 2019 Share Posted May 17, 2019 I love the way some of the floating dust is so clearly in the foreground. Regarding F ratio, I've become rather skeptical about it, suspecting that it does not necessarily do what it says on the tin... Olly Link to comment Share on other sites More sharing options...
Allinthehead Posted May 17, 2019 Author Share Posted May 17, 2019 17 hours ago, Xiga said: The early bird catches the NAN! Looks great Richard. Not sure why exactly, but my eye is drawn to the upper-left, and the teeny tiny stars look great 👌 Do you plan on adding any other filters to this? ps - Glad the Esprit is working out great for you 😀 Thanks Ciarán. No plan for adding filters i'm afraid, i don't have any others. 9 hours ago, ollypenrice said: I love the way some of the floating dust is so clearly in the foreground. Regarding F ratio, I've become rather skeptical about it, suspecting that it does not necessarily do what it says on the tin... Olly Thanks Olly. I'm with you on that. Maybe on a given aperature, all other things equal then F ratio does what it says on the tin. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.