@zphx2.bsky.social on Bluesky

JavaScript RequiredThis is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is. Learn more about Bluesky at bsky.social and atproto.com.

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Zphx

zphx2.bsky.social

did:plc:plhae6f75o4pqrx6mktsjgqg

What astronomer can calculate the orbit of my thistle-down? HDT ~ September 29, 1858 tinyurl.com/HDT580929 https://tinyurl.com/HDT580929

2025-09-29T15:13:32.453Z