Telescope control

A place to report problems and bugs in SharpCap
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diman
Posts: 4
Joined: Wed May 18, 2022 11:00 am

Telescope control

#1

Post by diman »

Hi! guys. Faced with such a problem. Tab - telescope control, no sight
Please tell me how to solve this problem?
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admin
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Posts: 13177
Joined: Sat Feb 11, 2017 3:52 pm
Location: Vale of the White Horse, UK
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Re: Telescope control

#2

Post by admin »

Hi,

make sure you have a supported plate solving program installed and properly configured (star database installed, SharpCap set up to use that plate solving program). See the 'Plate Solving' page of the SharpCap settings for more details and check out https://docs.sharpcap.co.uk/4.0/#Plate%20Solving%20Tab

cheers,

Robin
diman
Posts: 4
Joined: Wed May 18, 2022 11:00 am

Re: Telescope control

#3

Post by diman »

Thank you very much. Everything worked out.
diman
Posts: 4
Joined: Wed May 18, 2022 11:00 am

Re: Telescope control

#4

Post by diman »

admin wrote: Wed May 18, 2022 2:19 pm Hi,

make sure you have a supported plate solving program installed and properly configured (star database installed, SharpCap set up to use that plate solving program). See the 'Plate Solving' page of the SharpCap settings for more details and check out https://docs.sharpcap.co.uk/4.0/#Plate%20Solving%20Tab

cheers,

Robin
Hi!
Please tell me what this could mean?
Faced with another problem in solving plates.
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admin
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Re: Telescope control

#5

Post by admin »

Hi,

the message is coming from Astap. It has tried to find the plate solve info for your image and failed. It has tried all the way down to the faintest stars in its database and still failed (that's why the message says 'reached maximum magnitude...').

There could be a number of reasons for this...

1) The stars detected in the image are fainter than the star database - see https://www.hnsky.org/astap.htm for details about Astap star databases. You may need to install the larger H18 database if you have a small field of view

2) Things that are not stars being detected as stars (hot pixels, noise, etc). This might confuse Astap so that the same error happens

3) Incorrect parameters such as field of view or search area being sent to Astap, meaning it might be looking in the wrong place or for things of the wrong size.

It's often a good idea to take an image and upload it to nova.astrometry.net to get plate solving results from there - you can then check that the co-ordinates, field of view, etc match what you expect and what you have configured via the SharpCap settings or what is coming from the ASCOM mount driver.

cheers,

Robin
diman
Posts: 4
Joined: Wed May 18, 2022 11:00 am

Re: Telescope control

#6

Post by diman »

admin wrote: Wed Jun 08, 2022 12:19 pm Hi,

the message is coming from Astap. It has tried to find the plate solve info for your image and failed. It has tried all the way down to the faintest stars in its database and still failed (that's why the message says 'reached maximum magnitude...').

There could be a number of reasons for this...

1) The stars detected in the image are fainter than the star database - see https://www.hnsky.org/astap.htm for details about Astap star databases. You may need to install the larger H18 database if you have a small field of view

2) Things that are not stars being detected as stars (hot pixels, noise, etc). This might confuse Astap so that the same error happens

3) Incorrect parameters such as field of view or search area being sent to Astap, meaning it might be looking in the wrong place or for things of the wrong size.

It's often a good idea to take an image and upload it to nova.astrometry.net to get plate solving results from there - you can then check that the co-ordinates, field of view, etc match what you expect and what you have configured via the SharpCap settings or what is coming from the ASCOM mount driver.

cheers,

Robin
Thank you very much!
Need to study this 👍
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