Shapley 2 (IC 4642) PN in Ara

Shapley 2 is the second of the three planetary nebulae mentioned in the Shapley catalogue.
It has a magnitude of 13.4 and is about 24 arc-sec in diameter, additional an oval very weak halo is visible including some outer OIII structures.
The central star is of magnitude 16. The weak outer halo and some O-III blobs have been discovered by the Galactic Planetary Nebula Halo Survey (GPNHS) Team
in July 2015 resp. in June 2017.

Image data:
Ha-OIII-RGB (680-800-100-100-100 min) total 30 h, north is up, seeing 0.8-1.2 arc-sec,
80cm f/7 Astrooptik Keller cassegrain, FLI PL-16803, Astrodon gen2 filters, Prompt 7 CTIO Chile

Processing: Johannes Schedler

Find a RGB image in 150/200% size, a highly stretched Ha/O-III/RGB image in 150/200% size and a Ha/O-III comparison in 150% sizeĀ  below.

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Last modified on Saturday, 18 May 2019 16:04

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