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The Indian Astronomer V. B. Ketkar (1853-1930) predicted TWO trans Neptune planets in 1911 in a letter to Bulletin of Astronomical Society of France in May 1911, page 277. Laplace Laws of satellites of Jupiter were modified and applied by Ketkar for arriving at this results.

The first planet (Brahma) discussed there is subsequently discovered as Pluto. The second planet (Vishnu) has not yet been discovered, and is currently referred to as "Planet X" by Astronomers.

Can one calculate the current location and observe it?

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  • $\begingroup$ The image appears to be from Chhabra et al. 1984. Wikipedia:Planets beyond Neptune footnote links to this PDF. $\endgroup$
    – Mike G
    Mar 3 '20 at 1:59
  • $\begingroup$ You are right about Mr Chhabra. I have an access to Original notes from Mr V B Ketkar , about whose work J G Chhabra, S D Sharma, and Manju Khanna-Department of Physics, Panjabi University,Patiala-INDIA, have published this in Indian Journal of History of Science 1984. However I have not heard any further development on the works of Mr V B ketkar. Hence I have taken up the subject. $\endgroup$
    – Mohan Mone
    Mar 3 '20 at 4:30
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    $\begingroup$ @uhoh-please suggest me the site and I will put on it. I have about 16 pages scanned about 45 MB $\endgroup$
    – Mohan Mone
    Mar 4 '20 at 7:43
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    $\begingroup$ @uhoh The Internet Archive is a good place, but you need to make sure you have the rights to distribute the paper that way first. Either 1) You must be the copyright holder, 2) The work must be licensed for redistribution, or 3) It must be public domain. $\endgroup$
    – called2voyage ♦
    Mar 4 '20 at 12:49
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    $\begingroup$ @MohanMone Also, if you want more control over who has access, you can host in Google Docs instead, but if you make it link-shareable you still need to make sure you have the rights to distribute. $\endgroup$
    – called2voyage ♦
    Mar 4 '20 at 12:53

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