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BSJ's picture

Zapper 4.0 has been released!

If you would like to help AAVSO HQ staff with data validation, please click here to read more about this useful plotting tool:

For those of you who have used Zapper before, I think you are going to like its new features:

  • Now allows larger datasets
  • Improved method of highlighting observations by you or any specified observer
  • Ability to pan a zoomed section of a light curve using left and right arrow keys
  • Database connectivity faster and more stable
  • Data loading progress information improved

Since Zapper is a Java Web Start application, you should get the new version automatically next time you open the program using the zapper.jnlp launcher.

Please contact me if you have any questions or suggestions (sara [at]


lmk's picture
Zapper or LCG2?

Since both these apps now offer the feature, which way is recommended or are both equally good?



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