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mkelley / elevation

Plan observations of comets and asteroids with this web app.
https://elevation.mkelley.dev
MIT License
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Galactic latitude #52

Closed mmk8a closed 3 years ago

mmk8a commented 4 years ago

It would be helpful if galactic latitude could be displayed (or toggled on) in the target table.

mkelley commented 4 years ago

I agree. There's probably a simple formula for it.

mmk8a commented 4 years ago

Galactic longitude and latitude are option 33 in Horizons. Hopefully that makes it easier to implement?

mkelley commented 4 years ago

Except that the ephemerides are from the MPC. Horizons support is at least a year away (waiting for them to release a new API).

mmk8a commented 4 years ago

I was waiting to go back to my office to get you the equations for this calculation out of a book, but I found the book online. See topic 29 (pages 56-58): https://www.iaa.csic.es/~dani/ebooks/Astrophysics/2011%20-%20Practical%20Astronomy%20with%20your%20Calculator%20or%20Spreadsheet_4thEd%20-%20DUFFETT-SMITH.pdf

mkelley commented 3 years ago

Updated, thanks @mmk8a !