Search found 11 matches

by Jfisher6626
02 Aug 2024, 20:19
Forum: Instrumentation
Topic: spectroscopy slit function
Replies: 5
Views: 1344

Re: spectroscopy slit function

Thanks. Finally got a clear night so I’ll try again. But is it necessary to do a calibration first? I’m using a Ioptron cem 70 and Alpy and thinking of exposure of less than 5 min. So will it track without calibration in slit mode? Thanks. John
by Jfisher6626
21 Jul 2024, 23:47
Forum: Instrumentation
Topic: spectroscopy slit function
Replies: 5
Views: 1344

Re: spectroscopy slit function

Thanks , let me see if I have this correct. Once the star is in the window, I use the edge arrows to get the cross on the slit,then use the hand controls to move the star over the cross? Thanks j.
by Jfisher6626
19 Jul 2024, 19:46
Forum: Instrumentation
Topic: spectroscopy slit function
Replies: 5
Views: 1344

spectroscopy slit function

I had my first successful night using alpy600 and asroart but I have some remaining questions on this particular functionality. when I activate the slit function and mark star ,my screen looks different than the instructions. the cross is tilted and much smaller. How do I know that guiding has been ...
by Jfisher6626
30 Jun 2024, 19:50
Forum: General
Topic: downloading catalogue
Replies: 1
Views: 978

downloading catalogue

I am hoping to find a compressed file zip file that contains the basic gaia2 catalogue. I went to the esa but the amount of files
is confusing. Anyone know a simpler way of getting this catalogue installed? thanks john
AA8
by Jfisher6626
19 Jun 2024, 01:39
Forum: Image processing and analysis
Topic: Sub region for histogram
Replies: 3
Views: 1152

Re: Sub region for histogram

Hmmm, I’ll try it,thanks. John
by Jfisher6626
18 Jun 2024, 18:47
Forum: Image processing and analysis
Topic: Sub region for histogram
Replies: 3
Views: 1152

Sub region for histogram

Still learning the basics of AA. The profile tool is very handy for looking at spectra profiles but I’m looking for A more efficient way. Is there a way just to draw out a subregion and get a histogram on that? I tried drawing rectangles but It doesn’t change the xy coordinates in free profile. Ther...
by Jfisher6626
16 Jun 2024, 00:47
Forum: Instrumentation
Topic: Spectroscopy use
Replies: 3
Views: 1752

Re: Spectroscopy use

Thanks so much for this. It’s going to make things a lot easier. I just hope the slit mirror reflections
won’t be a problem. John
by Jfisher6626
15 Jun 2024, 02:19
Forum: Instrumentation
Topic: Spectroscopy use
Replies: 3
Views: 1752

Guiding with slit

The manual suggests finding “guiding a star on spectroscope slit” PDF. I haven’t found it. Does any one know where to download this?
Thanks john
by Jfisher6626
14 Jun 2024, 20:18
Forum: Instrumentation
Topic: Spectroscopy use
Replies: 3
Views: 1752

Spectroscopy use

Phd2 now has a tool for highlighting the slit for star placement in guiding. Astroart seems to work differently.
What would be the setup for slit spectroscopy guiding? How do I highlight the slit in darkness? Any help is appreciated. Thanks john
by Jfisher6626
14 Jun 2024, 17:06
Forum: Instrumentation
Topic: Camera plugin
Replies: 2
Views: 1072

Re: Camera plugin

The plug in was the key. I assumed I already had it since my other imaging apps
were fine. thanks john
by Jfisher6626
13 Jun 2024, 23:19
Forum: Instrumentation
Topic: Camera plugin
Replies: 2
Views: 1072

Camera plugin

I installed AA today,and am already having problems I read the pdf and installed the ascom plug in for my asi 294. The camera chooser still only shows simulator.
My cam is recognized by all my other apps and ascom is up to date. What should I do? Thanks john