Astrometry.net Alternatives

astrometry.net reviews and mentions

• Automatic recognition of astronomical images – astrometric calibration
  1 project | news.ycombinator.com | 16 Oct 2023
• Roll Your Own All-Sky, Raspberry Pi Camera
  4 projects | news.ycombinator.com | 12 Oct 2023

  Plate solving - identifying constellations and deep sky objects by the relative positions of stars - is a pretty common part of astronomy software and possible on a raspberry pi. For example https://github.com/dstndstn/astrometry.net

  I'm not aware of anything that can, say, identify a meteor and differentiate it from a plane or satellite, but I'm sure it's possible.

• Hey guys, color calibration question.
  1 project | /r/AskAstrophotography | 11 Jul 2023

  for platesolving to work in Siril, the focal length and pixel size should be fairly accurate to work. If you drizzled, that would reduce the pixel size by whatever drizzle amount you used. You can also upload a jpg to astrometry.net to find out what the parameters are in a blind solve

• recently took a photo from my village with low light pollution, when i tried putting this in astronomy.net to match the constellations and stuff it always says failed, can anybody help?
  1 project | /r/astrophotography | 30 Jun 2023

  Try astrometry.net instead of astronomy.net :)

• Online editing
  1 project | /r/dwarfii | 5 Jun 2023

  Starfixer.org is pretty cool and so is astrometry.net. But I'll give you my 2 cents as both an iPad Pro owner and also a faster computer. The math that happens when we do our processing is advanced - blows my mind. The iPad CPU is great for its use case, but you aren't going to find Chat GPT or other high-end, compute intensive workloads running on today's iPad. You can connect to the cloud, but you can't run the workload. As you said, we can't even find an app to open a single FITS image file because that along doesn't help many people do much if you can't stack and apply the other compute intensive work.

• StarBerrySense aboard POEM-2 performing as expected, design as well as function validated.
  1 project | /r/ISRO | 2 May 2023

  It most certainly is not better than astrometry.net. I just assumed that it would be beyond the capabilities of a Pi. We would need to put the index files on the Pi but could cut them down because our limiting magnitude is about 6.

• N.I.N.A Three Point Polar Alignment ASTAP Not Plate Solving
  2 projects | /r/AskAstrophotography | 22 Apr 2023

  I think I may have hurt myself in confusion. I just imported my target from stellarium and hit slew and center. This time it slewed and centered and uploaded to astrometry.net currenty I'm waiting to see how it goes with that. This is what happens when you take like half a year off from this hobby lol

• How can I photograph something I can't see?!
  1 project | /r/AskAstrophotography | 19 Apr 2023

  You can upload a photo to astrometry.net and wait 10 minutes for it to tell you where you are pointed in the sky, make manual adjustments, and repeat. The way to make this efficient is to control your mount and camera from a computer, and use a program like APT or NINA to do the platesolving. That way your goto function is precise and there's no question about what you're looking at.

• I need hellp with this picture of C/2022 E3 I took lasst night
  1 project | /r/AskAstrophotography | 31 Jan 2023

  I took 186 6 second exposures at 200 ISO at 105mm(I live in a Bortle 7 area, edging at 8, needed to combat light pollution somehow), I also took 20 calllibration frames of each Dark Flats and Biases, and sent them into DeepSkyStacker for stacking, I know it has a comet feature, but I couldn't see the comet in my pictures, sso I hd no way to tell it where the comet was, so I did the norml steps, and thought, i'd get a small line, of the comet's movement, and that'd be enough for me, but after stacking and stretching the image, I am seeing no signs of the comet, and astrometry.net is unable to plate solve the stretched image(cpu limit reached!). I don't know what's wrong with it, other than the obvious clouds, but I've had that before in my andromeda pictures and DSS handled it well, and astrometry.net was able to plate solve it no problem.

• Is there a way to find an island from its shape?
  1 project | /r/gis | 26 Nov 2022

  http://astrometry.net/ uses a fairly standard technique to do this for stellar images, but I don't think the technique can be expanded to polygons

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