Search found 123 matches

by fabdev
13 Dec 2019, 00:50
Forum: General
Topic: Doubles stars whit Astroart7
Replies: 9
Views: 68

Re: Doubles stars whit Astroart7

Thanks again for discovering the problem about binary stars position angles.

The Script Window can be opened from the menu: Plugin/Camera control 7.0/
There are several demo scripts to learn quickly the language. The french manual is not available though.
by fabdev
12 Dec 2019, 23:57
Forum: General
Topic: Doubles stars whit Astroart7
Replies: 9
Views: 68

Re: Doubles stars whit Astroart7

The position angle is the trigonometric one, so measured from RA West (so it's not compatible for binary stars). To convert you need to subtract 90. Thanks for letting me know, in SP3 both angles will be shown. Meanwhile here's the script to calculate the correct P.A. for binary stars: ra1 = Image.S...
by fabdev
12 Dec 2019, 21:50
Forum: General
Topic: Doubles stars whit Astroart7
Replies: 9
Views: 68

Re: Doubles stars whit Astroart7

To be safe on the centroid you must choose an Aperture which contains pixels only of one star. For this reason in that example I used an Aperture of 3 for the faint star and an Aperture of 5 for the bright one. The Aperture can be changed in the Preferences. The centroids are calculated with weighte...
by fabdev
12 Dec 2019, 20:19
Forum: General
Topic: Doubles stars whit Astroart7
Replies: 9
Views: 68

Re: Doubles stars whit Astroart7

Hello, once the image is platesolved (or astrometrically calibrated) the separation and position angle can be shown by the Stars Window. Select the two stars, then right click for the context menu: double-star.png other calculations could be done by a script, here is a simple example for calculating...
by fabdev
11 Dec 2019, 18:50
Forum: General
Topic: AStroart 7 photometry & Astrometry question
Replies: 20
Views: 702

Re: AStroart 7 photometry & Astrometry question

It depends on the catalog: if the star was extremely saturated on the original plate or image then the accuracy on the position cannot be good. This is why some catalogs do not contain bright stars at all. For astrometry I wouldn't use any reference star brighter than 9.0 mag (by the way, in the Ast...
by fabdev
10 Dec 2019, 17:06
Forum: Scripts
Topic: Printing the value in the CCD simulator and 'V' in aperture photometry tool
Replies: 3
Views: 46

Re: Printing the value in the CCD simulator and 'V' in aperture photometry tool

Hello, the star must be collected, so in the Aperture Photometry window (the Zoom window) just press ENTER with the keyboard to collect the star. Actually you could collect the star directly on the image (left click), without using the zoom window. In this case configure the Aperture/Gap/Background ...
by fabdev
09 Dec 2019, 17:52
Forum: General
Topic: AStroart 7 photometry & Astrometry question
Replies: 20
Views: 702

Re: AStroart 7 photometry & Astrometry question

About Mira, usually the precison of bright stars is not so good. For precise "DSLR" photometry, (which applies to any GRGB CCD) usually the green or red channel is used, so the image should be demosaiced with the option "Green channel" or "Red channel", see: https://www.aavso.org/dslr-observing-manu...
by fabdev
09 Dec 2019, 12:23
Forum: General
Topic: AStroart 7 photometry & Astrometry question
Replies: 20
Views: 702

Re: AStroart 7 photometry & Astrometry question

Maybe the problem is that the GSC has no stars close to very bright objects(?), but with the UCAC4 this is solved. Both the u4b and the parent folder will be accepted as valid paths for the UCAC4. I never used the Python script to fix those stars, because it's related to some stars with high proper ...
by fabdev
09 Dec 2019, 12:10
Forum: Scripts
Topic: Printing the value in the CCD simulator and 'V' in aperture photometry tool
Replies: 3
Views: 46

Re: Printing the value in the CCD simulator and 'V' in aperture photometry tool

Hi, the commands would be: Image.GetPixel(x,y) and Image.Stars.ADU(1) (after you have selected the star) but they have been added in Astroart 6, so in Astroart 4 the only way to do that is with a Plugin. A plugin for Astroart 4 can be developed with the SDK 4.0 available at: http://www.msb-astroart....
by fabdev
02 Dec 2019, 14:12
Forum: Instrumentation
Topic: Canon *.cr3 raws
Replies: 2
Views: 53

Re: Canon *.cr3 raws

Hello, I think that it will be presented in 3-4 months. If you like to receive a prerelease just write me by email or PM.
Greetings, Fabio.