How does one transform parallax in milliarcseconds to light years?
...John...
Parallax Measurement to Light Years?
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Topic authorDollan
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Parallax Measurement to Light Years?
"To make an apple pie from scratch, you must first create the universe..."
--Carl Sagan
--Carl Sagan
Re: Parallax Measurement to Light Years?
Dollan wrote:How does one transform parallax in milliarcseconds to light years?
...John...
1) Convert milliarcseconds to arcseconds (ie divide by 1000).
2) 3.26 divided by parallax in arcseconds = distance in lightyears
(if you want to be really accurate then replace 3.26 with the exact number of lightyears in a parsec).
My Celestia page: Spica system, planetary magnitudes script, updated demo.cel, Quad system
You might be interested in some of the spreadsheets I have at:
http://www.evildrganymede.net/rpg/traveller/mapping.htm
I've got one there that converts Ra/Dec to galactic coordinates, and it also has a parallax to lightyears converted in there too.
http://www.evildrganymede.net/rpg/traveller/mapping.htm
I've got one there that converts Ra/Dec to galactic coordinates, and it also has a parallax to lightyears converted in there too.
My Celestia page: Spica system, planetary magnitudes script, updated demo.cel, Quad system