About the object:
Sh2-71 is a biploar planetary nebula in the constellation Aquila. There's
still spectulation about which stars to attribute to the nebula. There's the hypothesis that the nebula isn't originating in the noticeable bright star at the center of the image but a much tinier star close by. This candidate star isn't visible on my image, however.
About the image:
I had done a wide-field image of this area at around the same time last year (
https://www.astrobin.com/lngfa5/). I've noticed this planetary nebula and kept it on a list as I definitely wanted to go for it again. On AstroBin I have only found a few images of the nebula and even fewer with higher quality or at least which try to bring out the fainter nebula detail. This planetary nebula has a very nice structure and I enjoy to see the faint regions of hydrogen gas. Especially those regions which seem to be like jets directing east and west (north is down on this image, as it appeared to be most pleasing orientation).
I hope that I succeeded to contribute with a fair quality image here on AB. The colors of the nebula are from hydrogen alpha and oxygen-III and so is the luminance of the image. The colors of the stars were taken through RGB filters calibrated by a photometric color calibration.
Feel free to comment and I hope you enjoy.
Björn
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