Peranso - Light Curve and Period Analysis Software

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Peranso is most impressive and is a pleasure to use. I loaded the yearly Wolf sunspot numbers from 1700 to 1964 and was pleased to obtain a Lomb-Scargle spectrum identical to what I published in the Monthly Notices of the Royal Astronomical Society back in 1980 (volume 190, pp 723-732).

Dr. Nick Lomb, Sydney Observatory, Australia
Author of the Lomb-Scargle analysis method
(unsolicited comment)

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Peranso is, without doubt, the best period analysis software I've ever seen. It's easy, it's fun, and boy, is it powerful! The competition isn't even close; this is a real service to science. Trust me, if you do period analysis, you're going to want this program.

Grant Foster, USA
Author of the CLEANest analysis method
(unsolicited comment)

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Peranso is superb, easily the best of breed. As well as its power and flexibility, I really appreciate its ease of use and the very thoughtful and intuitive user interface and navigation. Congratulations. I look forward very much to the upcoming upgrades.

T. Richards, Woodridge Observatory, Melbourne, Australia
(unsolicited comment)

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I just bought a copy of Peranso to use on my 117 days worth of MaxIm DL extracted photometry data. It turned hours worth of Excel spreadsheet work into a 5 minute task. A great compliment to MaxIm's photometric measuring ability. I found Peranso extremely versatile and thought others with similar interests/pursuits might benefit from the package.

J. Phillips, Saipan, Northern Mariana Islands
(unsolicited comment)