Sh2-71

A planetary nebula in the constellation Aquila. It was first found by Rudolph Minkowski in 1946, although he didn't recognise that it was a planetary nebula. It was only in 1959 when Stewart Sharpless independently discovered it that we realised that it might be a planetary nebula. It has an unusually complex morphology which is attributed to a triple star system at its core. It is around 3,260 light years from Earth - so this image shows its appearance around 1,300 years before the birth of Christ.

This was a joint project with my excellent team mate Sven Eklund from Sweden, capturing image data on my dual rig and his Celestron Edge C14 - both located at the e-Eye hosting site in Spain.
Pre-processing: Sven Eklund
Post-processing: Peter Goodhew
TARGET
Nomenclature: Sh2-71
Right Ascension: 19:01:59.96
Declination:  +02:09:16.10
Size: 132.4 arc seconds
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors, Celestron C14 EdgeHD
10Micron GM2000 HPS mount, iOptron CEM120
Twin QSI6120 CCD cameras, ZWO ASI6400MM Pro
Astrodon and Chroma filters
IMAGE CAPTURE
Blue: 24x300"
Green: 25x300"
Red: 26x300"
Ha: 119x900" bin 1x1, 189x300" bin 2x2
OIII: 26x900" bin 1x1, 119x300 bin 1x1, 239x300" bin 2x2
Total Integration: 88 hours 5 minutes
Pixel scale: 0.530 arcsec/pixel
Field radius: 0.167 degrees
Capture dates: 11-24 July 2022
Capture location:  Fregenal de la Sierra, Spain
IMAGE PROCESSING:
PixInsight and Photoshop CS2, Image stacked by Sven Eklund and processed by Peter Goodhew
Ha image
OIII image