Jump to content

sgl_imaging_challenge_banner_31.thumb.jpg.b7a41d6a0fa4e315f57ea3e240acf140.jpg

Setting up PlateSolving in Astrophotography Tool (APT)


Recommended Posts

  • 2 months later...
  • Replies 77
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

I've seen a few threads where people are struggling to setup the platesolving routine in Astrophotography Tool. Though people do try to offer advice on the forum, if your not IT savvy then it can be a

Yep. My routine is: Setup in home position Polar align in Sharpcap Take first image in home position Platesolve and sync Use the drift align tool in PHD to slew to meridian an

Yup. That's it. Point craft has a list of all common targets. There's no manual slewing. Just pick a bright star from the list of stars. Click goto++ let APT do it's thing and plate solve onto it. I h

Posted Images

I just want to say that this thread is one of the most useful things I've ever come across in my time doing astrophotography. Thank you so much!

I set this up today and tonight I had the easiest time finding targets I've ever had BY A MILE. I used to think that my expensive mount was "bad" or "broken" or something because it would take me so long to find what I was looking for, but this has made me realise that actually it was getting pretty close every time and I was just struggling to get that last movement spot on. 

Now though - wow! Thanks again :)

  • Like 1
Link to post
Share on other sites
  • 2 weeks later...
On 19/08/2020 at 22:46, MarvinZ said:

I want to do a test on this software to platesolve an image I took a wile back but cant seam to find a way to import it to APT can anyone advise. This is to test it out.

 

Thanks

You can't find a way to import the image into APT?

Link to post
Share on other sites

Hi David

That is correct, it was probably something simple I was missing. I have given up on APT, at least for now.

I have now found NINA and have invested my time into working with NINA and find so far I am getting on with this software, so for now that is the way I am proceeding. Just waiting on clear sky, and the delivery of my new equipment. 

Link to post
Share on other sites

1. Click on Img tab in top RH corner.

2. Then click on the current path.

image.png.e3de928ef48c38c1e9b30291eefe6b06.png

3. Select the directory where the image is.

image.png.322c86ceb24df0ef8ebb68bfbb8f4fc5.png

4. Double click on the image you want to platesolve.

image.png.ad83ddb609d605afd74b9d115e8eb372.png

5. Select Image Preview: On (Flt)

image.png.3d1d101bab76bfa5f3206c4131c605f6.png

 

6. Stretch the image on main screen.

image.thumb.png.2ef38b74a12d01f497b358f9c8fcc805.png

 

7. You should then be able to platesolve it (I think anyway). Either tyoe in approxomate Ra and Dec positions of object and solve or blindsolve it, which may take sometime.

Steve

 

Link to post
Share on other sites

Got this setup and running tonight -  It’s amazing!

It kept failing to sync and I was tearing my hair out trying to get to the bottom of it. Quick tip - check you actually input your coordinates correctly first before trying the more technical fixes!  

  • Like 1
Link to post
Share on other sites
  • 2 weeks later...

This is a brilliant and very intuitive tutorial. I have followed your instructions and I have now setup APT and Point Craft for solving.

I use Plate Solving now. But I wasn't sure whether It was set up correctly. Thank you for this tutorial.

Have you considered offering this up for publication in Astronomy Now?

  • Thanks 1
Link to post
Share on other sites
4 hours ago, PaulB said:

This is a brilliant and very intuitive tutorial. I have followed your instructions and I have now setup APT and Point Craft for solving.

I use Plate Solving now. But I wasn't sure whether It was set up correctly. Thank you for this tutorial.

Have you considered offering this up for publication in Astronomy Now?

Thanks! I'm glad its still helping people! I should update it now though as APT has added ASTAP support. I find this very quick to solve, when it works, but I only have a 70/200mm lens now so its hit and miss at shorter focal lengths. PS2 for near solve and ASPS for blind solve still work well even at only 100mm focal length.

No, its never crossed my mind to reach out to any magazine though they would be more than welcome to publish. Its free for everyone to see on here anyway 🙂

Link to post
Share on other sites
On 05/09/2020 at 22:30, wormix said:

Got this setup and running tonight -  It’s amazing!

It kept failing to sync and I was tearing my hair out trying to get to the bottom of it. Quick tip - check you actually input your coordinates correctly first before trying the more technical fixes!  

Hope you got to the bottom of it! If your scope is actually pointing close to your target already, you can auto populate the coords box by hitting the Scope Position button. It may be close enough to get it to solve.

Link to post
Share on other sites
17 hours ago, bottletopburly said:

I find 6 second subs and iso 1600 work well for Astap solving in 4 seconds ,.

I find if my lens is slightly out of focus ASTAP will solve with bigger star profiles but with good focus and tiny stars at short focal length it struggles.

No issues with PS2 or ASPS, just slower.

Link to post
Share on other sites
14 hours ago, david_taurus83 said:

I find if my lens is slightly out of focus ASTAP will solve with bigger star profiles but with good focus and tiny stars at short focal length it struggles.

No issues with PS2 or ASPS, just slower.

Note in ASTAP there is a minimum star size setting which  default is set at 1.5 arc second to ignore hot pixels. Secondly it will ignore stars of one pixel (HFD<0.8) since they are most likely hot pixels.

For ASTAP it could help if you force the binning to 1 instead of auto=0 keeping the stars in the image larger.  The ASTAP CCD inspector will tell you the average HFD and star size in arc seconds.

Han

author of ASTAP

astap_1.thumb.png.b56d4e6a96f18d20d2b277ba97e1a349.png

  • Thanks 1
Link to post
Share on other sites
57 minutes ago, han59 said:

Note in ASTAP there is a minimum star size setting which  default is set at 1.5 arc second to ignore hot pixels. Secondly it will ignore stars of one pixel (HFD<0.8) since they are most likely hot pixels.

For ASTAP it could help if you force the binning to 1 instead of auto=0 keeping the stars in the image larger.  The ASTAP CCD inspector will tell you the average HFD and star size in arc seconds.

Han

author of ASTAP

imageproxy.php?img=&key=127fb0a7147957bfastap_1.thumb.png.b56d4e6a96f18d20d2b277ba97e1a349.png

Thanks Han, I will give this a try!

Link to post
Share on other sites
  • 2 weeks later...

David, thank you very much, this is such a valuable thread. Would you be able to share the M81 image used in your original post? I'm still putting things together and don't have a picture yet. (The mount is here but the guide camera is malfunctioning, and the ADM vixen-to-Arca-Swiss adapter is yet to arrive.)

Link to post
Share on other sites
  • 2 weeks later...

WOW

One of the best threads I have ever read, I would never have worked this out on my own

Thanks for pointing me to this thread David!

I got it all set up, and tested with some images.... just.... wow

Now I just need a clear night! 

  • Thanks 1
Link to post
Share on other sites
  • 3 weeks later...
  • 1 month later...

Having followed this tutorial, I have a question regarging new profiles when using scopes of a different focal length/cameras with different sensors.

Is it as simple as dowloading the new files on the ASPS wizard using the new specs and create the new profile on APT or is more required?

Is there any further action for PS2 or are the files dowloaded as described sufficient?

I also notice that in ASPS settings (via the toolbar) there are details it considers "critical", are these also being updated accoridng to the profile used?

image.png.d602724bae3c152fd906cf91ec682ba6.png

S.

Link to post
Share on other sites
  • 2 weeks later...
On 29/12/2020 at 17:05, SStanford said:

Having followed this tutorial, I have a question regarging new profiles when using scopes of a different focal length/cameras with different sensors.

Is it as simple as dowloading the new files on the ASPS wizard using the new specs and create the new profile on APT or is more required?

Is there any further action for PS2 or are the files dowloaded as described sufficient?

I also notice that in ASPS settings (via the toolbar) there are details it considers "critical", are these also being updated accoridng to the profile used?

image.png.d602724bae3c152fd906cf91ec682ba6.png

S.

As long as you have the indexes installed for the focal lengths your working at, then it should be fine if you have the correct focal length selected in APT.

I've not noticed any issues with PS2 either whilst changing the focal lengths.

  • Thanks 1
Link to post
Share on other sites
20 hours ago, Sidecontrol said:

How would i plate solve with say a fuji camera attached to a telescope? would i use my guide cam mini? or is there another way to do it?

Is the Fuji camera supported with APT?

Link to post
Share on other sites
2 hours ago, david_taurus83 said:

Is the Fuji camera supported with APT?

just looked it up and it doesn't, sad times, but i did get EQMOD and Sterallium set up so i'll be using that for now. 

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.