First project in a while, Crescent ngc6888 in Ha, O3 bicoluor

[Magnus_e]

Hi.

I have not posted in this forum in a long while.

One unguided Ha image of the Orion nebula was all I got for the 2018 and 2019 season, after first managing to burn the motor drivers of my Celestron AVX.

2020 has been good so far. Managing a couple small projects in springtime, and now imaging remotely again.

This image could use some more data, but as a 'get back in the game' project, I'm pretty happy. Might do a reprocess later, when I get 'used' to PixInsight after not using it for a while.

 

Image collected with the ASI 1600mmc at -20C using 300 gain, and 50 offset.

Total of 3h and 20min, 1h 41min Ha and 1h 39min O3

Pixelmath is 1x Ha for R, 0.8x O3 + 0.2x Ha for G, 1.1x O3 for B

 

 

Clear Skies

[MarkAR]

Very nice, bit more data might bring up the blue halo a bit more.

[Magnus_e]

Thanks Mark, I might just do that.

Also for most of the Ha data I would rate my focus a 8/10, while the O3 is a 10/10.

If I could add some more 10/10 Ha, then I think it would help

[MarkAR]

32 minutes ago, Magnus_e said:

If I could add some more 10/10 Ha, then I think it would help

Definitely would help, there is a slight softness to the image but I thought it might just be seeing quality.

[Magnus_e]

It was just going to be a test for when I was waiting for the ElephantTrunkNebula to get a little lower than the Azimuth. My mount has a hard time guiding at that altitude. Now I have more data on the Crescent than the Elephant due to weather.

Hope to get more on both, as they are really nice objects.

[Magnus_e]

Managed to get some more data on the Crescent

This is now at 4h 14minutes total, with 137minutes Ha and 117minutes O3.

I also did a reprocess of this new image. Sharpening up the nebula a bit, and dimming some starts ++

To me it looks a lot better than v1, but I like to hear what you think.

/Magnus_e

 

Crescent ngc6888 Ha,  Syn, O3 bicolour