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INDI Library v1.8.4 Released

Minor bugfix release with some highlights:

Astrometry slew to target and mount model

3 days 8 hours ago
rmor51
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Astrometry slew to target and mount model #51252
I use frequentely the astrometry to center an object. The solve is very quite perfect with Astap or Astrometry.net. But I don't understand why after 2 or 3 tries, the next tries do not place the object just in the center. It stay on the red aera or just outside, never in the green aera after twelve or more try. I try to increase the Accury fields to 50, but unsuccessful.

And so the mount model never rich a successful end.

Thank for your support.

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3 days 7 hours ago
wvreeven
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Astrometry slew to target and mount model #51258
Which mount do you use? Do you clean the mount model before slewing to a new target? If not, please try and see if that helps. It always works for me if my SkyWatcher HEQ5 (EQMod) mount has problems centering on a target.


HTH, Wouter

ASI1600MM-Pro Cooled and filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro

ASI1600MM-Pro Cooled and filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R

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2 days 19 hours ago
rmor51
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Astrometry slew to target and mount model #51274
My mount is a Celestron AVX. I try again this evening if possible. Thanks.

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2 days 18 hours ago
ChrisRowland
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Astrometry slew to target and mount model #51281
It's a feature of the way that Celestron have implemented their slewing. When the mount does the slow final approach slew it moves to the axis position that the object was at when the slew command was sent. The slew takes several seconds so by the time the mount stops the object has moved on. This gives an error in Ra of 15 arc seconds per second that the final slew takes so usually something between 30 and 75 arc seconds.

I've been trying to get them to fix this for years, it's quite easy, just estimate how long the final slew will take and adjust the target position to allow for this.

I've been hoping they would fix this but it looks as if the only way will be to fix it in the driver - adjust the target position by the difference between the target position and where the mount stops. I've already done it for the ASCOM driver and will do it for the INDI one as well. I'm in lockdown at the moment so will get suficiently bored to do this fairly soon.

In the meantime the best thing is to relax the position tolerance, 60 or 70 arc seconds should be OK.

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