Search found 461 matches

by fabdev
31 Jul 2020, 14:15
Forum: Image processing and analysis
Topic: removing the bright sun from an image
Replies: 6
Views: 3146

Re: removing the bright sun from an image

Hi, it can be done both via image processing and via masks. Here are a couple of examples: 1) Make a duplicate of the image (F2) then Filter / Histogram Stretch to attenuate the prominences and keep only the disk. If the image is 8 bit write "255" as New Range. Apply, then OK. FilterStep1.jpg 2) Fil...
by fabdev
30 Jul 2020, 15:40
Forum: Instrumentation
Topic: Updated Canon plugin
Replies: 0
Views: 1792

Updated Canon plugin

Hello, an updated plugin for Canon camera is available:
http://www.msb-astroart.com/
this just supports the new cameras released in the last 6 months. If your camera is already supported there's no need to upgrade.
Fabio.
by fabdev
30 Jul 2020, 15:37
Forum: Instrumentation
Topic: CCD vs CMOS
Replies: 0
Views: 1933

CCD vs CMOS

An interesting video about CCD vs CMOS, made by Atik :

https://www.atik-cameras.com/news/video ... ion-files/

Astroart 6 is used to analyze the difference between the two sensors.
by fabdev
30 Jul 2020, 15:28
Forum: Scripts
Topic: Remote, How to hide Camera Control and Script Editor
Replies: 3
Views: 3410

Re: Remote, How to hide Camera Control and Script Editor

Hello, the AA_SCRIPT_HIDE is still not implemented, so it can be added in Service Pack 5 this september. Please write by email for the prerelease. About starting on second monitor, this can be added too.
Fabio.
by fabdev
22 Jul 2020, 17:53
Forum: General
Topic: ucac 4
Replies: 3
Views: 2384

Re: ucac 4

Hi, the horizontal size of several Messier images (M63, 67, 81, etc.) is 13.5 arcminutes. There's a mini tutorial with the M67 image in the Help about "Find coordinates".
by fabdev
16 Jul 2020, 15:07
Forum: General
Topic: Airmass calculation
Replies: 4
Views: 2767

Re: Airmass calculation

Hello, if you are using scripts, here is an example: lon = Observatory.Longitude lat = Observatory.Latitude ra,de = Image.EstimateRADec azi,alt = EquatToAltaz(ra,de,lon,lat,Image.JD) print "Azi,Alt =" ; azi ; alt print "Airmass" ; Airmass(alt) Image.SetKey("AIRMASS", Airmass(alt)) function Airmass(o...
by fabdev
03 Jul 2020, 13:13
Forum: Instrumentation
Topic: Calibration pulses for AO in SP4
Replies: 0
Views: 1803

Calibration pulses for AO in SP4

Hello, as written in the thread about the SP4 release, if you use an AO, remember to decrease in the Guide Options the duration of the calibration pulses, from 800 to 500 ms, otherwise the AO limits may be reached during the calibration itself:
by fabdev
29 Jun 2020, 13:02
Forum: General
Topic: Astroart 7.0 SP4
Replies: 9
Views: 5414

Re: Astroart 7.0 SP4

The demo version of SP4 was released today:

http://www.msb-astroart.com/
by fabdev
29 Jun 2020, 13:01
Forum: General
Topic: Astroart 7.0 SP4
Replies: 9
Views: 5414

Re: Astroart 7.0 SP4

instead, for some Active Optics it's recommended to decrease the calibration pulses to 500 ms, otherwise it's possible that the limits are reached during the calibration procedure.
by fabdev
24 Jun 2020, 15:03
Forum: General
Topic: Images from PanSTARRS
Replies: 0
Views: 2094

Images from PanSTARRS

Hello, I've just been told that it's not possible to open Panstarr images with Astroart: http://ps1images.stsci.edu/ The problem is that those images are not " Simple FITS ": they are encoded as a binary table , in compressed format. This is not supported. By the way, it's still possible to study th...
by fabdev
24 Jun 2020, 14:16
Forum: General
Topic: Astroart 7.0 SP4
Replies: 9
Views: 5414

Re: Astroart 7.0 SP4

Yes, in SP4 you will see notifications in the status bar if the apparent telescope speed is lower than 0.75 pixels per second or higher than 12.0 (telescope too fast). As a general rule, If the speed is too slow, then the guide pulses will be too long and this will decrease the frame rate so the "ef...
by fabdev
22 Jun 2020, 01:52
Forum: General
Topic: Astroart 7.0 SP4
Replies: 9
Views: 5414

Re: Astroart 7.0 SP4

Hello Bernd, the six dots are automatically placed on the six spikes of the Bahtinov mask (which are not present in your screenshot, see the Wikipedia link above for some examples). To view the six spikes you need a bright star. The buttons place the dots nearer or farther the star. Usually there's ...