Simeis 147 - The Spaghetti Nebula - WIP

[Gina]

First part of this project - collected light subs in Ha.  Later I want to capture RGB data and produce a colour version.

Equipment - 135mm f2.5 Asahi Super Takumar lens (ex SLR film camera), Astrodon 3nm Ha filter in ZWO EFW mini attached to ASI1600MM-Cool camera, mounted on EQ8 , unguided.

This is 232 120s subs with a gain of 600 (the maximum) and sensor temperature of -30C.  Calibrated with matching bias, dark and flat frames in the PixInsight BPP script, applied DBE to tidy up the background.  Then saved as TIFF and transferred to Photoshop for post processing where I applied levels and Noel's Action - "Enhance DSO and Reduce Stars".  Just a relatively quick post process.  Saved in PNG format for upload.

[davew]

Hey Gina,

This must rate as one of your finest images of the night sky.

You're showing what that little camera can really do. Even tagged on Sh2-242 I see

Dave.

 

[jabeoo1]

Gina thats a beautiful image.  I will admit never having heard of this nebula, I guess visually it amounts to nothing at all?

 

[Davey-T]

Lovely Gina, encouraging me as I took a few HA subs of it last night and just doing a few more.

Dave

[Barry-Wilson]

Well done Gina. Capturing this in one frame with some clear sky around really sets the SNR in context.  Fabulous.

[Gina]

Thank you everyone   Yes, this nebula is very faint though large, being 3 degrees across - that's six times the diameter of the moon (as viewed from earth).

[PatrickGilliland]

Well done Gina that's super progress and a lovely delicate image already.

Paddy