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pennomi, w Confirmed at Last: Barnard's Star Hosts Four Tiny Planets

These planets are in remarkably close quarters, with periods of just 2.34, 3.15, 4.12, and 6.74 days.

Speedy little guys

very_well_lost,

The furthest of the four is estimated to have an orbital radius of about 0.03 AU. That’s 1/10th the size of Mercury’s orbit around the sun!

veroxii,

At least it’s a dry heat.

keepthepace,

850°C apparent temperature 830°C. Stay hydrated.

muhyb,

That’s a fuel scooping range.

Wahots,
@Wahots@pawb.social avatar

Warning, temperature critical.

keepthepace,

“Hot planets are waiting for you in the star’s neighborhood!”

RizzRustbolt, w Confirmed at Last: Barnard's Star Hosts Four Tiny Planets

And we’ve made our first step towards the Time Tombs.

Wahots,
@Wahots@pawb.social avatar

Late stage Kassad needs to get his ass to Earth, we need him.

edgemaster72, w Asteroid 2024 YR4 now has a 1.94% chance to hit the Moon (according to my own calculations)
@edgemaster72@lemmy.world avatar

Nooo not the moon, it didn’t do nothing to no one. Come back YR4, we still have some lovely cities you could obliterate.

conditional_soup, w Asteroid 2024 YR4 now has a 1.94% chance to hit the Moon (according to my own calculations)

This is super cool! I was kinda hoping it would hit soonish. 2032 feels like it might as well be 3032 with how things are going. Hopefully this doesn’t mess up any of the world’s plans for lunar bases.

egrets, w Confirmed at Last: Barnard's Star Hosts Four Tiny Planets
@egrets@lemmy.world avatar

Unfortunately we’ll never get to visit them in person if Prostetnic Vogon Jeltz has anything to say about it:

We are about to jump into hyperspace for the journey to Barnard’s Star. On arrival we will stay in dock for a seventy-two-hour refit, and no one’s to leave the ship during that time. I repeat, all planet leave is canceled. I’ve just had an unhappy love affair, so I don’t see why anybody else should have a good time.

janus2, w Saturn has 128 new moons – more than the rest of the planets combined
@janus2@lemmy.zip avatar

“Did you bring enough to share with the whole class?”

the class:

haroldfinch, w Confirmed at Last: Barnard's Star Hosts Four Tiny Planets

Wonderful confirmation.

To think how hard it is to confirm these planets, for such a relatively close star. When we have already confirmed so much about objects at far greater distances.

Hard to comprehend these achievements from our individual perspectives. 👏

Rhaedas,
@Rhaedas@fedia.io avatar

I wonder if Kepler or others would have found these planets had Barnard's Star been in the areas searched? I.e., very small planets in close orbits around a dim star is a very difficult target, period. This also means that the thousands of systems we now know about certainly have far more than the few bodies we've detected because we can only see the biggest ones well.

otter, w Saturn has 128 new moons – more than the rest of the planets combined

Slut.

Try not to grab another moon on your way through the parking lot!

Bristingr, w Saturn has 128 new moons – more than the rest of the planets combined

What, having the best rings wasn’t good enough for Saturn? Gosh, how greedy. /s

Zzyzx, w Saturn has 128 new moons – more than the rest of the planets combined

Jupiter excitedly pointing out this news to Juno

troyunrau, w Saturn has 128 new moons – more than the rest of the planets combined
@troyunrau@lemmy.ca avatar

This is a great question. It’s like asking when a rock is too small to be a planet. I suspect there were be a definition eventually that mirrors the planetary definition – something like “spherical(ish) and clears its orbit”. The issue is that Mars would lose its two moons under that definition.

So we might end up with something like “moons” vs “natural satellites” and Mars will just have to suck it up.

kinttach,

Moons vs. dwarf moons? (Sounds like a fantasy novel series.)

pwnicholson, w Saturn has 128 new moons – more than the rest of the planets combined
@pwnicholson@lemmy.world avatar

*“Newly identified moons” I’m pretty sure they’ve been there for a while.

Having 128 new moons would really be noteworthy!

grillgamesh, w Saturn has 128 new moons – more than the rest of the planets combined

Perhaps when they become fully operational battle stations?

anindefinitearticle, (edited ) w Kissing moons may explain why Earth's moon is so large

deleted_by_author

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  • toast,

    *rogue

    Fourth, w Friday Night Stargazing 2025-03-07
    @Fourth@mander.xyz avatar

    I biked out to a park yesterday with my big binoculars but I’m still waiting for my tripod to show up so I just checked out the moon some. Thanks for posting.

    conditional_soup,

    The Pleiades and Hyades should still be fairly high in the sky, and make great targets for binoculars. I’m also VERY partial to the little beehive cluster in Canis Major (go to the first barely visible star down from sirius, along the dog’s spine, and move directly right from there). If they’re strong enough, the Orion Nebula also makes a great target. The regular beehive cluster is alright; it can be tricky in the city, but you should juuuust be able to see what kinda looks like a faint, blurry star just left of the angle of you make a right angle between Pollux and Procyon. There’s also a few binary stars that make good targets right now. You should be able to split the first bright star out from the cup in the handle of the big dipper into three stars.

    Fourth,
    @Fourth@mander.xyz avatar

    Appreciate it, looking forward to future posts from you.

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