Message from @BigBoy
Discord ID: 633783746839183371
👍
Says in that article u can see it with he naked eye ?
So u can see a dark spot with the naked eye the size of tycho ?
You can see a hazy dark area
Barely
As it's at the limit of goodneyes
So u can see it with the naked eye ?
yes
Why can’t one see black holes
U can barely see it with the naked eye ?
ya
guess it depends on what you mean by 'see'
Lol
can see a blotch there but won't be able to make out detail
you can 'see' letters at the doctors office but can't read them
But u know their is a letter there like u know tycho is there
yep
till we had telescopes we couldn't tell it was a crater
just a different shade
try it tonight, it's a mostly full moon
Yeah
So we all agree we can see tycho with the naked eye
Give it a try
yep
Ok
at 248000 miles that must be some sized crater for an eye to make it out
yep
it's pretty big
It’s 86 km
It’s 86 km
the biggest one on there apparently
We can see something 86 km from 248 thousand miles away ?
hmmm lets see if that makes sense
calculate the angular size
Visually does it make sense
i hate to make the heliocentric model take perspective into account but i think this is necessary
first start with angular size calculation
Do you know how to do that
**Question of the Day #217**
Can you make a spherical shadow with a straight object?
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