Another Dumbell Nebula

[Farooq]

After waiting one lonnnngg month, finally got some relatively clearish skies at the weekend. I have still not totally got the hang of LRGB yet especially the ratio of the exposures for me seems to be in the order of 1 : 1.5 to 2 : 3 for r:g:b.

By the time M27 was visible it was quite late (or early morning), so I was able to only get 4 of each LRGB. L:240, R:60, G:120, B:180s.

No flats yet, I'm waiting for a light panel to be delivered. Aquisition, calibration in MaximDL and combining in PS.

I will redo the calibration because after processing I realised that I had calibrated my RGB with unbinned darks.

I also did the lagoon nebula again, this time using Ha instead of luminance and RGB. Image comes out pinkish not sure sure what to do with that. Any suggestions ?

[Gina]

Nice - I think that's very good for just 4 subs of each colour

[Farooq]

Thanks Gina,

I reprocessed the RGB with the correct darks. Not sure if the image looks better than previous one.

[Gina]

Oh yes, that's much better

[Quatermass]

Yes much better thats a nice image of the dumbell nebula

[Farooq]

Here's the quick and dirty HaRGB, of the lagoon nebula, Starizona had a tutorial on combining HaRGB. I need to get more subs to improve the image and reduce noise.

[Gina]

That's really beautiful

[Chris]

Great job on both Farooq:)

[Farooq]

Managed to finally get some RGB to add to the Ha of M16 I took a couple of months ago. RGB is a bit noisy so need to add more subs. also guiding was playing up a bit, so some elongated stars.

[Gina]

Lovely, all the same

[Farooq]

Here's the quick and dirty HaRGB, of the lagoon nebula, Starizona had a tutorial on combining HaRGB. I need to get more subs to improve the image and reduce noise.

M8 reworked with more RGB and HA added...