We 5-1 Planetary Nebula in Aquila

This is a very faint but complex planetary nebula with a size of 2.3 arc-minutes. It was discovered by Ronald Weinberger in 1999. It was also independently discovered by the French amateur astronomer Thierry Raffaelli in 2014 and is also known as Ra 7. It has also been discovered on two further separate occasions by the Deep Sky Hunters members Dana Patchick and Matthias Kronberger. It appears to be an old planetary nebula that is interacting with the ISM and limb brightening is visible towards its northern edge (caption by Sakib Rasool).

Image data:
Ha O-III RGB (280-360-100-100-100 min) total 15,7 h, north is up, seeing 0,8-1.2 arc-sec,
80cm f/7 Astrooptik Keller cassegrain, FLI PL 16803, 3 nm NB and RGB Astrodon Gen2 filters, Prompt 7 CTIO Chile
Processing: Johannes Schedler

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Find a Ha and O-III NB comparison in 50/70% size below

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Last modified on Friday, 05 May 2017 16:35

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