astronomy

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lauha, in The famous star Betelgeuse will briefly disappear tonight

“Nasa will be performing maintenance and Betelgeuse will be down between 8:24 P.M. and 8:26 P.M. EST. We apologize for the inconvenience.”

GlitzyArmrest, in First tomato ever grown in space, lost 8 months ago, found by NASA astronauts
@GlitzyArmrest@lemmy.world avatar

Moghbeli didn’t offer details on where the tomato was found, nor what condition it was in. But it’s probably safe to assume it won’t be featured in a gourmet meal anytime soon.

Another article that doesn’t offer any more details about where it was found. I’m starting to really believe someone ate it!

z500,
@z500@startrek.website avatar

turns around, secretly reaches into pocket and retrieves a brand new tomato

A-ha! The first tomato grown in space, which I definitely didn’t lose, was here this whole time!

HumanBehaviorByBjork, in First tomato ever grown in space, lost 8 months ago, found by NASA astronauts
@HumanBehaviorByBjork@hexbear.net avatar

until they show us a photo of it i still think he ate it, and this is a cover up

Albbi, in Halley's Comet begins its return journey to Earth Saturday
essteeyou,

Oh damn, this basically embodies my comment in another thread. I hope to live to see it return.

Albbi,

I thought it was a far side comic I saw as a kid, but after googling it I couldn’t find the original source.

Rockyrikoko,

I searched using Google lens and not a single result credited the artist

kat_angstrom, in Halley's Comet begins its return journey to Earth Saturday

Oh weird. I heard the same thing about 6 weeks ago, either there’s some imprecision in the measurement or poor reporting

essteeyou, in Halley's Comet begins its return journey to Earth Saturday

I was obsessed with space for a while when I was pretty young. I remember finding out that I saw Halley’s comet when I was a baby, and became convinced that I’d live long enough to see it come back again, or even die once it returned. I guess I was a little bit morbid or looking for some sort of meaning to life.

So anyway, this is the beginning of my mid-life crisis.

rhythmisaprancer,
@rhythmisaprancer@kbin.social avatar

Author Mark Twain was born during the comet and stated he would go out with it, and did!

Fixbeat, in Halley's Comet begins its return journey to Earth Saturday

I wonder if we’ll still be here.

LEDZeppelin,

Depends on next year’s elections results

EatYouWell,

Yeah, humans are kinda like the HIV of species, so we’ll be around.

hperrin,

Depending on your definition of species, HIV is the HIV of species.

Tugboater203,
@Tugboater203@kbin.social avatar

The comet doesn't care.

GammaGames,

k

niktemadur, in Halley's Comet begins its return journey to Earth Saturday

Aphelion Day!

indigomirage, in Halley's Comet begins its return journey to Earth Saturday

Voluntarily…?

DarkThoughts, in One of the brightest stars in the sky will 'blink out' on Dec. 12. Here's how to watch.

Is this event going to be recorded via high powered telescopes like Hubble or James Webb?

brianorca, (edited )

They are not well positioned to do that. You have to be in a very narrow path. But a properly positioned ground telescope could learn quite a lot about the star by studying the light curve. In some ways, events like this can give more detail than even the Webb can do. We can also learn about the asteroid by studying the light curves from several telescopes in different positions.

This is the type of event where high speed video gives better data than a long exposure. It will only be 12 seconds from beginning to end at any viewing site. And it will cross the earth in 18 minutes.

lolcatnip, (edited ) in One of the brightest stars in the sky will 'blink out' on Dec. 12. Here's how to watch.

A very, very tiny total eclipse.

XeroxCool,

Things like this make you realize eclipse as a bit of an arbitrary term to cover what we feel isn’t quite a transit and isn’t quite an occultation. Total solar eclipses are occultations and annulars are transits. Lunar eclipses are very disproportionately occultations but we’re sitting inside the cozy Earth looking out like office gophers commenting “it’s really coming down now” about snow flurries. When the Martian rover saw Phobos in front of the sun, it was a transit.

XeroxCool, (edited ) in One of the brightest stars in the sky will 'blink out' on Dec. 12. Here's how to watch.

8:17pm EST Dec 11, 2023

the occultation will be visible only from a narrow path stretching from Asia to southern Europe, Florida and eastern Mexico.

The article has links to maps, a detailed info page, and a livestream

Edit: bad fleshbot. I’m kinda guessing the article changes time for the reader because it absolutely says 11th, not the 12th as the title says.

atx_aquarian,
@atx_aquarian@lemmy.world avatar

But, in EST and similar time zones, it’s December 11, not 12, right? The headline says 12th; the article says Monday the 11th. And based on a different article I previously read, I set myself a calendar reminder for the 11th, so I’m leaning that way. Maybe they meant the 12th UTC?

Edit: Yep, in EST and other Western TZs, I’m reading the 11th–Monday night.

skyandtelescope.org/…/asteroid-will-cover-betelge…

Around 1:17 UTC (8:17 p.m. EST December 11th), the main-belt asteroid 319 Leona…

earthsky.org/…/betelgeuse-will-dim-disappear-aste…

So, for example, in Cordoba, Spain, the mid-point of the event will be at about 1:15:45 UTC, or 2:15:45 a.m. local time, on December 12, 2023. And in Miami, Florida, the mid-point of the event will be at about 8:24:54 p.m. local time on December 11, 2023. That’s the same as 1:24:54 UTC on December 12, 2023. Find the exact timing for your location here.

XeroxCool,

You are absolutely correct. I wonder if the title is UTC but the article adapts to the reader. I hope I don’t cause people to miss it

verity_kindle,
@verity_kindle@lemmy.world avatar

Thank you for untangling this. I’m calling up my science loving nieces to watch it for me and report.

XeroxCool,

Please note it’s Dec 11 EST. You may have seen my old comment that said the title’s 12th EST. So it’s best to follow the direct pages linked in the article for your timezone

Maeve, in One of the brightest stars in the sky will 'blink out' on Dec. 12. Here's how to watch.

A birthday gift for December born, a Christmas gift for everyone else!

cyberpunk007, in Every planet in our solar system explained

Ah yes. I learned Venus is earths future.

“The atmosphere is extreme due to the greenhouse effect which filled the planet with carbon dioxide.”

JackGreenEarth, in Astronomers discover six planets orbiting a nearby sun-like star

‘nearby’

100ly away.

Pons_Aelius, (edited )

In space that is nearby.

If we scaled the milky way to the size of earth, that would be about 15km away.

If we scaled the observable universe to the size of earth that would be about 4mm away.

“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy

btaf45,

100 ly years is actually kind of far. It is farther than most of our named stars. I wouldn’t consider it ‘nearby’.

Pons_Aelius,

In space that is nearby.

That was my point, Human scale vs astrophysical scale.

btaf45,

100 ly is not in our local intersteller neighborhood. It is 3x farther than even Arcturus.

Pons_Aelius,

100 ly is not in our local intersteller neighborhood.

Good thing I never said it was.

In space that is nearby.

Human scale vs astrophysical scale.

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