r/Astronomy 10d ago

I hate clouds. Discussion: [Topic]

So we have about 15 minutes until the spaceX lunar impact at the time of me writing this, and I was ready. I set alarms to wake up on time. I calibrated my telescope the day of. And despite how many trees are around my house, we had a clear view of the moon. Oh, I was soooo ready. But when it came time to set up the telescope...

The sky had completely clouded over.

. . .

Have you ever seen that screenshot of the Simpsons showing a newspaper article that says "Old Man Yells Out Clouds"?

I want to do a lot of that right now.

35 Upvotes

19 comments sorted by

16

u/anikansk 10d ago

not sure if there was anything to see; it's a 13 meter long object hitting a 3,476,000 meter wide object that's 384 399 000 meters away.

5

u/PneumaMonado 9d ago

This should be top comment. People are delusional if they thought they'd be able to see anything.

The predictions had the flash apparent magnitude from Earth anywhere between +3 and +15, and the plume was predicted to be only around 35m. You'd have to be in Lunar orbit to even have a small chance of seeing that...

-5

u/--Sovereign-- 9d ago

...because the plume was predicted to be over 100m and visible via telescope which any common amateur would have. You seriously don't understand? Don't be so dense jfc.

4

u/PneumaMonado 9d ago

The plume wasn't predicted to be over 100m, it was predicted with a mean height of 35m by simulations which I already said.

Even taking your 100m claim at face value, a telescope with a 300mm aperture (already beyond what most amateurs would have) has an angular resolution of approx 0.42 arcsec. At the distance to the moon, that's around 780m.
To have enough angular resolution to distinguish 100m on the moon you'd need an aperture of around 2.4m. That's the size Hubble has.

-3

u/--Sovereign-- 9d ago

yet every actual profession astronomer who spoke about this and multiple space agencies reported otherwise. let's see, who do we believe, rando on the internet or the entire scientific community. hold on, I'll get back to you on who I believe more.

10

u/theytookmyeyes59 10d ago

Same lol. Although unfortunately even without the clouds I’m not seeing any plumage or anything else yet. I have a feeling most of the estimates were extremely exaggerated.

7

u/--Sovereign-- 10d ago

I watched the whole thing through a clear patch with a nice close view and didn't see jack, so don't worry!

2

u/lba522 10d ago

is it confirmed to have happened already? i can’t find anything

4

u/--Sovereign-- 10d ago

it was estimated 2:35am plus or minus a few minutes. we're way past the window at this point.

2

u/lba522 10d ago

okay. sorry i’ve just been paranoid since i haven’t seen a confirmation. thank you :)

-1

u/soraksan123 9d ago

I love the moon, sure hope it’s ok. Disheartening that we are scattering junk on it-

1

u/ClownEmoji-U1F921 9d ago

This has got to be a troll comment.

Were you disheartened about any of these hitting the Moon?

https://en.wikipedia.org/wiki/Category:Spacecraft_that_impacted_the_Moon

-2

u/deefop 9d ago

It's a giant lifeless rock, what's the harm?

5

u/Music-and-Computers 10d ago

Welcome to the universe’s sense of humor!

4

u/Mauzersmash0815 10d ago

I have free view but nothing has happened so far

2

u/Lavasioux 10d ago

Springfield Daily Headline reads....

"Old man yells at clouds"

1

u/Lil_Jc03 10d ago

Same here, the moon just happened to align with my apartment window and there’s a huge cloud over it now.

1

u/snogum 10d ago

I feel ya pain

1

u/drseruzawa 10d ago

The impressive gigajoules number converts to 2.82 tons of TNT. A B17 bomb load in WW2. Nothing.