Outters4, a newly discovered giant (planetary ?) nebula

[stephane zoll]

Here is a photograph of Outters4 (OU4), a giant nebula hidden in Sharpless 129, recently discovered by Nicolas Outters (http://www.outters.f...erte-OU4-eu.pdf). OU4 is mostly emitting in the OIII line and is very large (1.2° wide) but very faint compared to the Ha signal of Sharpless 129. The nature of this nebula is not yet clarified and subject to observation from professional astronomers these days [Publication: http://www.outters.f...1206.2477v1.pdf ].

Common name : Giant Squid nebula, credit to Nicolas !

Acquisition: FSQ106 refractor at f/3.6 , camera Atik 4000, 4h20 Ha, 7h20 OIII and 2h50 RGB.

A full resolution image can be found here : http://www.astrosurf...LMAR_HOORGB.jpg

Other large planetary nebulas here : http://www.astrosurf.../images_PN.html

Thanks for looking,

Stephane

[ultranova]

My Eyes are being treated again to another nice photo, this is displaying the squid well for the time frames involved.

well done Paul.

[prokyon]

Great result! The effort was it worth, such a weak object, I am impressed.

[squeaky]

Wow.

[Mr Spock]

Great amount of detail in this picture. Sure looks like a planetary to me.

[nytecam]

Great amount of detail in this picture. Sure looks like a planetary to me.

Nice deep pic [beyond Sloan DSS] - discovery apparently a couple of years back? Any pro follow-up to comfirm it's a PNe?

[SJJ]

Very nice image, worth all the effort you have put in.

[Gina]

Lovely

[stephane zoll]

Thank you for your replies.

The OIII structure has been discovered just a year ago. Studies have been done this summer at La Palma ; conclusions soon. It looks like a kind of PN but the star reponsible for this structure may be a little exotic...

Stephane

[Tom OD]

Excellent, only noticed your post now. Cool to be discovering objects with narrowband data. Hard to think of using O3 to survey other parts of the sky in search of new objects, when its clear. You want to take more regular pics, like LRGB!

Well done Nicolas.

Tom.

[WaveSoarer]

A beautiful image.

[Lars]

It's an amazing formation inside (?) Sh-129 and the picture is really beautiful and very well processed.

/Lars