Search found 152 matches

by Rudi
30 Oct 2019, 18:12
Forum: Image processing and analysis
Topic: Preprossing error
Replies: 4
Views: 2548

Re: Preprossing error

Thanks Fabio, I will try two stars. But later, it's clear right now, so I am busy :D

by Rudi
30 Oct 2019, 07:42
Forum: Image processing and analysis
Topic: Preprossing error
Replies: 4
Views: 2548

Preprossing error

Hi, An error occurs with the 4'th image, when I am trying to stack. What can I try to let AA7 succeed? Any parameters that I can tweak? Preprocessing: #PREPROCESSING Image=C:\Users\rbr\Dropbox\Main\astro\2019\1029\ngc7331\ngc7331_180s_004_L.fit Image=C:\Users\rbr\Dropbox\Main\astro\2019\1029\ngc7331...
by Rudi
29 Oct 2019, 16:04
Forum: Image processing and analysis
Topic: creating Hubble palette
Replies: 6
Views: 3453

Re: creating Hubble palette

I tried both the above methods, but I wasn't pleased with the result. Then I "stumbled" over a thread on stargazers lounge, can't re-find it, unfortunately, where someone mentioned, that in the case of H-alpha and O-III, one needs to create a "synthetic" green channel, by multiplying H-alpha with O-...
by Rudi
29 Oct 2019, 09:21
Forum: Image processing and analysis
Topic: creating Hubble palette
Replies: 6
Views: 3453

Re: creating Hubble palette

I found this Youtube video:
https://www.youtube.com/watch?v=bNUFobiCCIw

The trick is to use the Ha and OIII images as follows in Trichomy:
Red: Ha
Green: OIII
Blue: Ha
by Rudi
29 Oct 2019, 08:10
Forum: General
Topic: How to specify FIT format?
Replies: 2
Views: 2023

Re: How to specify FIT format?

Thanks a lot Fabio!
by Rudi
29 Oct 2019, 08:09
Forum: Image processing and analysis
Topic: creating Hubble palette
Replies: 6
Views: 3453

Re: creating Hubble palette

Did You find out about this @Roberto ?

I am trying the same with AA7.
by Rudi
27 Oct 2019, 20:00
Forum: Scripts
Topic: Scripting functions for stacking?
Replies: 2
Views: 2075

Re: Scripting functions for stacking?

Great, thanks Fabio, just what I was looking for.
by Rudi
27 Oct 2019, 07:40
Forum: Scripts
Topic: Scripting functions for stacking?
Replies: 2
Views: 2075

Scripting functions for stacking?

I have a set of over 500 fits, that I need to stack in groups of 10's.

stack1 = stack(i1, i2, ...i10)
stack2 = stack(i11, i12, ...i20)
.
.
.

Doing this manually, quickly becomes boring.

Is it possible to automate this in AA7? I san not find any suitable scripting functions.
by Rudi
27 Oct 2019, 07:10
Forum: General
Topic: How to specify FIT format?
Replies: 2
Views: 2023

How to specify FIT format?

The AA7 help says: If just one pixel has a value outside the range 0 to 65535 ADU or it is expressed as a floating point value, Astroart will save the file as a 32 bit FITS (integer or floating point). How do I switch between making AA7 save as 32-bit float and 32-bit integer? One of the sub systems...
by Rudi
07 Oct 2019, 07:58
Forum: Images, research, events
Topic: astroart + qhy183, a great combo
Replies: 2
Views: 3570

Re: astroart + qhy183, a great combo

Sounds very nice, would you mind sharing the script(s)?
by Rudi
17 Sep 2019, 14:16
Forum: Instrumentation
Topic: Ambient temperature in FITS header?
Replies: 5
Views: 3531

Re: Ambient temperature in FITS header?

I have gotten the ZWO EAF focuser with temperature sensor now, anything I can do to help?
by Rudi
25 Jul 2019, 14:50
Forum: General
Topic: Connection to aladin website fails on AA7 SP1
Replies: 5
Views: 3367

Re: Connection to aladin website fails on AA7 SP1

Works fine on my setup; AA7 SP1.

Just right-clicked the Atlas, selected "Aladin web site" and got to this page:
http://aladin.u-strasbg.fr/AladinLite/? ... &fov=0.183