The article 1917 astronomical plate has first-ever evidence of exoplanetary system inspired my inquiry, as the question has been on my mind for years:

Where can I find star charts/plates from days long past, or more current data collections.

  • Not off-topic here, but you may try asking on astronomy.stackexchange.com too.
    – user3856
    Commented Apr 15, 2016 at 15:29

1 Answer 1


For optical astronomy, SDSS is where you should be looking at.

ESO has digitized sky surveys (DSS) from the pre-digital era.

I have worked with astronomers for around 9yrs helping them with data science and none of them use stuff from really old catalogs.

Hope this helps.

Cheers !

  • Welcome to the Open Data Stack Exchange, and thanks for contributing an answer. I made a couple of small edits -- first, notice how you can hyperlink text instead of including a bare URL. That's generally preferred. Also, I added what seems to be a good link to the ESO surveys -- if I got that wrong, please edit again and fix if you can. Commented May 6, 2019 at 20:43

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