fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 2 年前stars & sharksmander.xyzimagemessage-square55fedilinkarrow-up1862
arrow-up1862imagestars & sharksmander.xyzfossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 2 年前message-square55fedilink
minus-squarei_stole_ur_taco@lemmy.calinkfedilinkEnglisharrow-up68·2 年前They probably died off because they couldn’t use Polaris for navigation!
minus-squaremkwt@lemmy.worldlinkfedilinkEnglisharrow-up25·2 年前Polaris goes in and out of North Star status on the 26,000 year precession cycle. So for the duration of humanity (let’s say 100,000 years), there have been decent chunks of time where it’s not in use.
minus-squaresorrybookbroke@sh.itjust.workslinkfedilinkEnglisharrow-up13·2 年前You gotta rest up man, that’s a pretty big job for one star
minus-squareFuglyDuck@lemmy.worldlinkfedilinkEnglisharrow-up11·2 年前Can you imagine having to give directions to a bunch of illiterate primates? Ugg. I’d have quite after the first thousand years.
minus-squareTar_Alcaran@sh.itjust.workslinkfedilinkEnglisharrow-up2·2 年前They trade off. There are other stars that make for good pole star candidates
They probably died off because they couldn’t use Polaris for navigation!
Polaris goes in and out of North Star status on the 26,000 year precession cycle. So for the duration of humanity (let’s say 100,000 years), there have been decent chunks of time where it’s not in use.
You gotta rest up man, that’s a pretty big job for one star
Can you imagine having to give directions to a bunch of illiterate primates? Ugg. I’d have quite after the first thousand years.
They trade off. There are other stars that make for good pole star candidates