Celestial hemisphere:  Northern  ·  Constellation: Lynx (Lyn)  ·  Contains:  PK158+17.1
The very faint PN Purgathofer-Weinberger 1 (PuWe1) in 120+ hours, Massimo Di Fusco
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The very faint PN Purgathofer-Weinberger 1 (PuWe1) in 120+ hours

The very faint PN Purgathofer-Weinberger 1 (PuWe1) in 120+ hours, Massimo Di Fusco
Powered byPixInsight

The very faint PN Purgathofer-Weinberger 1 (PuWe1) in 120+ hours

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Description

I returned on this very faint planetary nebula to try to improve the last year's result, when I had accumulated over 63 hours of signal using my 2 telescopes. With this year's signal I almost doubled it, exceeding 100 hours of integration on the same deep sky object for my first time and, I must say, that the improvement can be seen above all on the very weak H-alpha signal in the background and the one on the outline of the bubble (for example, the "puff" seen on the left).

The subject of the picture is the planetary nebula known as PuWe1 (Purgathofer-Weinberger 1), located in the constellation of Lynx. Discovered by Alois Purgathofer and Ronald Weinberger in 1980 by analyzing plates from the Palomar Deep Sky Survey, PuWe1 is one of the largest and faintest planetary nebulae visible in our skies, with a diameter of 20 arc minutes (more or less like the full Moon); as well as one of the closest, being at a distance of "only" 1200 light years.

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