Talk:Rho Aquilae
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1992 or 1999
[edit]I'll leave this for someone else to tease out definitively, but I just wanted to note that according to "Kaler, Jim. "Rho Aquilae". University of Illinois at Urbana-Champaign. Retrieved 2018-10-23.", (cited on the bottom of the page), it actually crossed over in 1999, not 1992. TachyonJack (talk)
- I found, and added, a second book citation for 1992. I did see one for 1993, which doesn't fill me with confidence. My own calculations suggest the boundary was crossed almost exactly 7.5 years before Jan 1st 2000, so that would be in the middle of 1992. The calculations are not trivial though, because the constellation boundaries in 2000 are not straight along RA and Dec lines and I don't have sufficiently accurate positional data for the star for the original 1875 equinox. Still, the proper motion is high enough that I'm fairly confident about 1992. Lithopsian (talk) 22:00, 18 January 2019 (UTC)