4h 10min of integral Ha exposure of the region around triangle Henize 2-111 / RCW 85 / R Cen, featuring numerous emission, reflection, planetary and dark nebulae and RCW 85 HII region - captured remotely using Telescope #5 (Officina Stellare Riccardi-Honders RH200 D = 200mm f/3, FLI Microline 16200) system of ChileScope over 4 imaging sessions carried out on Jun 7, 8, 9, 11 of 2023.
The image is a two tile mosaic comprised of 10 frames stacked for tile 1 on the RCW85 side collected on Jun 7, 8, 2023 and 15 frames stacked for tile 2 on the Henize 2-111 side collected on Jun 9, 11, 2023.
This is a continuation of work started under [1] using the same Chilescope T5 instrument. The main improvement in this version is that the tile placement of the mosaic and the tile overlap layout used here have eliminated the arc of parasitic light from alpha Cen (out of the FOV for this image) that was present in the images previously published under [1].
[1]
https://www.astrobin.com/nuqbfs/E/The starless version of the image provided with the overlays from [2] and [3] is available under revision D:
[2]
https://www.astrobin.com/6vb6nv/E/[3]
https://www.astrobin.com/qbqt6t/B/The full resolution of revision D of the image is also available under [4]:
[4]
https://coalsack.online/chilescope/Cen_2023Q2/Cen_T5_tile12_reg_a1_stl2_at2_p50.jpg
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