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Astrometry.net instead of pinpoint?


Corpze

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Daniel,

 

you can set up astrometry.net in local, but Sequencer won't use it right now. By the way, it is - in my experience - usually slower than Pinpoint as long as the FOV is halfway there. If your pointing is completely off, Astrometry works better....

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Daniel,

 

you can set up astrometry.net in local, but Sequencer won't use it right now. By the way, it is - in my experience - usually slower than Pinpoint as long as the FOV is halfway there. If your pointing is completely off, Astrometry works better....

You say "right now" - is there something on its way?

Well, i havent used Ponpoint so i cant compare the speed, but is it worth the money?

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Well, I dunno if Philipp Keller will ever implement Astrometry.net instead of Pinpoint. I actually treid both, here is what I would say about them:

 

Pinpoint:

  • Very fast if the pointing is halfway correct (say, not off by more then twice the FOV)
  • Doesn't need a lot of resources (basically only the catalogue)
  • Can use it for astrometry in all forms, supported by most software packages

Astrometry.net:

  • Relatively slow - well, slower than Pinpoint when the coordinates are not off by alot. If the pointing is completely off, Astrometry.net will give you a good result after some time, whereas Pinpoint will fail
  • Needs quite some data: You have to download their database, which - depending on your FOV and resolution might be quite some GBs of data
  • Is computationally intensive
  • Is free :)

I actually used Astrometry.net for first pointings when my system was far off from where it should have been, otherwise I am just happy with PinPoint. If you are going to do some research in astrometry (comets, asteroids and so on), then IMHO it is well worth the money. Astrometry.net might be a good alternative, as would a similar package from Planewave be. It all depends on the support coming from Sequence.exe to use those tools...

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