gandalf_der_12te@discuss.tchncs.de to Science Memes@mander.xyzEnglish · 3 days agoSea Levelimgs.xkcd.comimagemessage-square177linkfedilinkarrow-up11.53Karrow-down14file-text
arrow-up11.53Karrow-down1imageSea Levelimgs.xkcd.comgandalf_der_12te@discuss.tchncs.de to Science Memes@mander.xyzEnglish · 3 days agomessage-square177linkfedilinkfile-text
minus-squarestray@pawb.sociallinkfedilinkEnglisharrow-up2·14 hours agoThe figures in my post are ephemeris days since that’s the way Wikipedia lists them. https://en.wikipedia.org/wiki/Sidereal_year https://en.wikipedia.org/wiki/Lunar_month#Sidereal_month “And some change” is a phrase to refer to a number following a decimal point, meaning the sources I find claim there are thirteen point something sidereal months per year, at a figure too low to round to 14. Here are some example sources: https://en.wikipedia.org/wiki/Orbit_of_the_Moon#Lunar_periods http://scienceline.ucsb.edu/getkey.php?key=1126 I still can’t find a source which says the moon makes 14 sidereal orbits per year, using any definition of year.
The figures in my post are ephemeris days since that’s the way Wikipedia lists them.
https://en.wikipedia.org/wiki/Sidereal_year
https://en.wikipedia.org/wiki/Lunar_month#Sidereal_month
“And some change” is a phrase to refer to a number following a decimal point, meaning the sources I find claim there are thirteen point something sidereal months per year, at a figure too low to round to 14. Here are some example sources:
https://en.wikipedia.org/wiki/Orbit_of_the_Moon#Lunar_periods
http://scienceline.ucsb.edu/getkey.php?key=1126
I still can’t find a source which says the moon makes 14 sidereal orbits per year, using any definition of year.