Jump to content

Pickering's Triangle and Witch's Broom


Recommended Posts

I tried this last year, but I assumed that the Ha is much stronger than the OIII.  So I only took 50m of Ha and 170m OIII.  I've now managed to add another 90m Ha, and I'm now quite pleased with it.

This is a crop from a larger frame, and it has also been scaled down to meet the file size limit.

Tak FSQ106 with focal reducer.  G2 16200 camera.  Stacked and calibrated in CCDStack.  Processed in Gimp.

I tried to use Starnet on this, and for the first time it didn't work very well at all.  It took out half of the nebulosity!  Unfortunately, this means that the stars are a bit odd, so don't look too close.

  • Like 4
Link to comment
Share on other sites

Looking good Don.

I can't even use Starnet, it won't install on either my desk top or either of my laptop, tells me there is something missing.

So I use Annies actions, which are also good for star reduction.  I select the stars first expand and feather, and then apply the action once or twice.  By selecting it doesn't affect the nebulosity.


Link to comment
Share on other sites

Posted by: @AstronomyUkraine
Posted by: @Carastro

Stand alone, I don't use Pixinsight.

I use the integrated version in Pixinsight, it seems some older computers don't have the architecture to run Starnet. If your PC has no AVX support, Starnet will not run.

My version gives this message when I run it:

2020-11-01 18:12:18.606978: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2

I don't know if this means that the Starnet doesn't use AVX2, or AVX or what.

However, I have noticed that sometimes it just won't run at all.  Yesterday, for example, it just failed a few times.  When I shut a bunch of other programs,it then ran fine.


Link to comment
Share on other sites


Posted by: @don4l

Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2

From what I gather, this is a warning that your machine could run faster using this application. Starnet is very CPU intensive, so closing down any other running programmes is recommended. There is a way of speeding up Starnet on your machine, but it only works on machines with an Nvidia graphics card. I tried it, and it works great.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...