SUNSET: 
0
Photographer:
Ysty
Location of Photo:
Several parts of France
Date/Time of photo:
Between 2021/11/10 and 2022/01/03
Equipment:
All informations in the description
Description:
Hi, I hope you take a look to the full resolution because submitting an image below 500Kb is really destructive and do not show the reality of this photo. Today, with as much fatigue as with pride, I submit to you my biggest astrophoto project to date, the big Spaghetti Nebula (Simeis 147 or SH2-240) in HOORVB mosaic of 2 tiles. Full resolution for visualisation is here : https://www.astrobin.com/043eov/B/ Full resolution for print is here : https://yann-sainty.com/SH2-240.tif Low resolution is in attachment just for preview. It's an object that has always fascinated me, that I dreamed of shooting knowing it wouldn't be easy. SPOILER: It was worse than that! It took me 2 months to acquire enough lights to make anything out of it. Indeed, I shot 14 winter nights between November and January (5 of which played with my nerves with the fog lifting at nightfall without being able to do anything). You should know that I could not even shoot the Ha during the moonlight because it passed directly over my target and was therefore very close over ten nights per cycle. Since this project is particularly close to my heart and living in an apartment, I decided to put all the chances on my side by making the necessary route to go shoot where the weather would allow it. So I shot from the Vosges, I camped in 0 ° C in Alsace, I shot from my astrobro Christope in Moselle, I went south of France to Valensole and I moved on several spots on several nights in this region.A total of 3,600 km of road to acquire the 55 hours of lights retained which consist of: Tile 1: Ha -> 71x600 ’’ Oiii -> 78x600 ’’ R G B -> 90x10 '' per filter Tile 2:Ha -> 94x600 ’’ Oiii -> 78x600 ’’ R G B -> 90x10 '' per filter While the acquisition was long and complex, so was the processing, I had to work with 400GB of data for a final image of 15 000 x 12 000px.Suffice to say that the PC has smoked! Once again a big thanks to Christophe who illuminated me with his advices during the processing and gave me invaluable help, thanks also to Nico for his always correct eye! Technical part: Takahashi FSQ106 EDX4 with 645-QE super reducerAsi 2600MM Pro (26M pixels - gain 100 offset 50) Barilla (Antilla) RGB + H and O 3nm filters Eq6r-pro Altaïr 60/225 guide + asi 290mm mini Sky bortle 3-4 Acquisition: N.I.N.A + Phd2 Processing: Siril + PixInsight + Photoshop Taken in several parts of France between 2021/11/10 and 2022/01/03 Copyright : Yann SAINTY [email protected] +336 45 59 94 89 The tiff image is ready for print with good color profile and dpi. Thanks a lot for your attention. Take care.
