Just for fun: some details of the PN Wr 17-1, inside or next to Alessi 3 (Claudio Tenreiro)

Celestial hemisphere: Southern · Constellation: Puppis (Pup)

Just for fun: some details of the PN Wr 17-1, inside or next to Alessi 3, Claudio Tenreiro

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Just for fun: some details of the PN Wr 17-1, inside or next to Alessi 3

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Just for fun: some details of the PN Wr 17-1, inside or next to Alessi 3

I took more hours on the planetary nebula that has, as far as I know, 3 names, ESO 256-19, Longmore 3 and Wray 17-1, and it is located either inside or next to the region of an open cluster Alessi 3. The firs session were 132 imagesx120" each, and the second one were 180 images of 120" each. The first one was interrupted as clouds came in.

There are a few nice studies on this nebula, one of them indicates that the central star is not pulsating, and also some of the images seems to indicate that it should be strong on O_III and not so much on H_b, and very weak on S_II, so is a kind of opportunity for NB filter in O_III.
Most information and references are in S. Akras, et al, arXiv:1509.05346v1 (2015)

It was fun to play with it and have this image stretched to high contrast. I have also included the negative image of the grayscale of the RGB one.

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Astrometry.net job	5302497
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Just for fun: some details of the PN Wr 17-1, inside or next to Alessi 3

Just for fun: some details of the PN Wr 17-1, inside or next to Alessi 3

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Just for fun: some details of the PN Wr 17-1, inside or next to Alessi 3

Just for fun: some details of the PN Wr 17-1, inside or next to Alessi 3

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