Search found 21 matches

by einari
30 Apr 2020, 19:01
Forum: Image processing and analysis
Topic: Follow minor planet - or comet
Replies: 4
Views: 712

Re: Follow minor planet - or comet

Back to this.

Today I made a macro to rotate all comet files so they would be north/south.
And now the follow minor planet aligning worked.
by einari
13 Apr 2020, 19:17
Forum: Image processing and analysis
Topic: Follow minor planet - or comet
Replies: 4
Views: 712

Re: Follow minor planet - or comet

I tried but it doesn' t look much better.
Is negative camera angle valid ?
by einari
13 Apr 2020, 15:12
Forum: Image processing and analysis
Topic: Follow minor planet - or comet
Replies: 4
Views: 712

Follow minor planet - or comet

I'm assuming asteroid or comet align assumes that north is up (and east west) in images.
How about when camera is not rotated like that ?
Would it be possible to read angle from fits and then calculate the angle of asteroid/comet based on that ?
by einari
08 Feb 2020, 15:57
Forum: Image processing and analysis
Topic: Plate solving - single vs stacked
Replies: 1
Views: 364

Plate solving - single vs stacked

I just make image of recent supernova (SN 2020ue in NGC 4636).

Started doing astrometry/photometry but first plate solving.
But it was strange that I couldn't plate solve using calibrated and stacked image - uncalibrated single image solved fine.
by einari
02 Oct 2019, 16:18
Forum: Image processing and analysis
Topic: Trichromy - large images?
Replies: 4
Views: 630

Re: Trichromy - large images?

You were right that they were different size.
Good to know that there's going to be warning of this in the future.
by einari
01 Oct 2019, 16:57
Forum: Image processing and analysis
Topic: Trichromy - large images?
Replies: 4
Views: 630

Re: Trichromy - large images?

I tried both 64bit and LAA version and same result.
End mosaic size is about 5000 x 5700 pixels.
by einari
30 Sep 2019, 04:34
Forum: Image processing and analysis
Topic: Trichromy - large images?
Replies: 4
Views: 630

Trichromy - large images?

Is there a limit how big images can be fed?
I have made a 3x2 mosaic which is over 5000 pixels in size.
Now when I'm doing Trichromy and adding second channel it deletes the first.
by einari
03 Jul 2019, 11:10
Forum: Scripts
Topic: coregister with SCRIPT
Replies: 7
Views: 1161

Re: coregister with SCRIPT

If your script automatically detects new objects then I'm sure many would be interested - me included.
by einari
24 Jun 2019, 05:23
Forum: General
Topic: Is 60s good enough?
Replies: 5
Views: 1578

Re: Is 60s good enough?

There are so many variables in AP so no wonder there's 'conflicting info'. If you are going to image moderately bright targets then 60s might be enough - and you only need to stack less than 100 of them. But if you are going NB and image faint targets then you need hundreds (even thousands) of image...