Recent comments in /f/space
VertigoOne1 t1_j6da1oh wrote
I remember reading somewhere that the sun is not even the brightest star in the sky when you get out to the oort cloud, but certainly it would be visible, but we tend to make constellations with bright stars, so probably not very far off. A quick google, maybe about 60 lightyears or so and it would be barely visible, but 0-40’s it might be in a constellation.
BigFattyOne t1_j6d9chn wrote
I don’t know.. I mean I prefer that they focus on tracking the real big scary stuff… broken windows can always be repaired…
nhpcguy t1_j6d97x7 wrote
I think it is good to know but from a technology perspective what would we do about it anyways?
I4Vhagar t1_j6d7ulj wrote
Reply to Hyperion is the largest of Saturn's irregular, nonspherical moons. Hyperion's mean radius is 135 km, but as it's potato-shaped, its shape can be described in terms of its diameter along its three axes: 410 x 260 x 220 km. Credit: NASA/JPL/Caltech/SSI by MistWeaver80
It’s clearly a giant egg, possibly space Godzilla?
X_PRSN t1_j6d7em8 wrote
Reply to comment by Dirtyoldsox in NASA's 'Mega Moon Rocket' aced first flight and is ready for crewed Artemis II launch by sasko12
Starship and SLS will be working together for the next landing, or so that's what I remember hearing.
I think what a lot of people miss is that while we think of organizations like NASA, SpaceX, Blue Origin, et al, as competitors, and compare them like we compare football teams, truth is they are all working cooperatively towards the same goals, and our efforts to push further out into space will be all the better for it.
Zippydodah2022 t1_j6d7a8s wrote
Reply to In the event of a fatal manned mission (example Artemis 2), would exploration stop in this period? by damarisu
You're almost certainly too young, but right at the start of manned U.S. flights into space, NASA warned Americans that space flight was inherently very risk and said American deaths were inevitable. The Apollo 1 disaster caused a long delay but never an end, Same after the two Space Shuttle disasters. The program was paused both times as NASA investigated what went wrong and fixed it (though some engineers and scientists warned NASA beforehand of both reasons for disasters - launching too cold weather for Challenger, and for the second, some in NASA had seen foam breaking off from rocket and hitting underside of Shuttle. Top engineers said the falling pieces were too small to damage the Shuttle, but then huge pieces fell ohh and hit underside of Columbia, dooming the crew right there.
NASA had no way to rescue them anyway.
NASA also built the Shuttle without a way for crew members to bail out in a disaster at takeover. I believe current NASA crew quarters have a way for pilot to pull a level to explode away from rocket and a parachute for planning.
But there will be more deaths, NASA always says, reason I'd reject a free ticket on one of the tourist space casuals.
[deleted] t1_j6d6zdn wrote
Reply to comment by snoopy369 in Hyperion is the largest of Saturn's irregular, nonspherical moons. Hyperion's mean radius is 135 km, but as it's potato-shaped, its shape can be described in terms of its diameter along its three axes: 410 x 260 x 220 km. Credit: NASA/JPL/Caltech/SSI by MistWeaver80
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Alana-9 t1_j6d6vxq wrote
Reply to Hyperion is the largest of Saturn's irregular, nonspherical moons. Hyperion's mean radius is 135 km, but as it's potato-shaped, its shape can be described in terms of its diameter along its three axes: 410 x 260 x 220 km. Credit: NASA/JPL/Caltech/SSI by MistWeaver80
Does anyone know, are those impact craters on its surface?
[deleted] t1_j6d6rbd wrote
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smilingpike31 OP t1_j6d5lwh wrote
Reply to comment by uranusisenormous in What if our sun was a part of another constellation on another planet? by smilingpike31
Ha dogs be like “grrr woof! Woof woof woooof woof wof “ (translated: hmm yes a fucking dot in the sky)
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snoopy369 t1_j6d553y wrote
Reply to comment by Sassy-irish-lassy in Hyperion is the largest of Saturn's irregular, nonspherical moons. Hyperion's mean radius is 135 km, but as it's potato-shaped, its shape can be described in terms of its diameter along its three axes: 410 x 260 x 220 km. Credit: NASA/JPL/Caltech/SSI by MistWeaver80
This stackexchange answer discusses this some. It depends on the material and mass. Pallas is also not spherical, nor is Vesta. Pallas is a good bit bigger (mean radius over 200km).
[deleted] t1_j6d4ep1 wrote
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FlyingBike t1_j6d4dtb wrote
Reply to comment by MasterOfSpaceAndTime in What if our sun was a part of another constellation on another planet? by smilingpike31
Resident Alien fan, I assume 👍
SuppressiveFire OP t1_j6d4bol wrote
Reply to comment by w2173d in Comet ZTF over Mount Etna by Dario Giannobile by SuppressiveFire
Of course, it's a stunning photo! I actually posted it yesterday morning since it was Sunday for me in Australia (it's now nearly 1:30 AM on Monday for me), but it was removed for it not being posted on Sunday. I forgot most of Reddit goes by USA time, so it was actually Saturday afternoon in the USA when I posted it. lol
ferrel_hadley t1_j6d2dxq wrote
The Sun is about brighter than a full Moon from Pluto. But hypothetically our Sun would appear as a super bright star from within the Solar System. Comets and the other planets would not be visible to human eyes. Though its slow 248 year movement across the sky would make it not fit in as a constellation.
But as you push deeper out while still part of the solar system that movement would become less and less obvious.
This is theoretical and does not answer your question directly but from a theoretical planet in the outer solarsystem then yes the Sun would be part of constellation to any civilisation only lasting a couple of hundred years.
w2173d t1_j6d1pyu wrote
Reply to comment by SuppressiveFire in Comet ZTF over Mount Etna by Dario Giannobile by SuppressiveFire
Very cool! I was hoping someone would share this spectacular sight! Thanks
uranusisenormous t1_j6d1gfb wrote
Reply to comment by internetboyfriend666 in What if our sun was a part of another constellation on another planet? by smilingpike31
Good way of putting it. The sun is def visible to other planets. But a constellation is an abstract concept that almost certainly requires some kind of intelligence. I don’t think dogs look at the stars and see archers or lions or bears. And even if they did, they’d have no language to pass that info down through the generations.
SuppressiveFire OP t1_j6d1fn0 wrote
Source: https://apod.nasa.gov/apod/ap230128.html
Description: Comet-like plumes are blowing over the volcanic peaks of Mount Etna in this wintry mountain-and-skyscape from planet Earth. The stacked and blended combination of individual exposures recorded during the cold night of January 23, also capture naked-eye Comet ZTF just above Etna's snowy slopes. Of course the effect of increasing sunlight on the comet's nucleus and the solar wind are responsible for the comet's greenish coma and broad dusty tail. This weekend Comet ZTF is dashing across northern skies between north star Polaris and the Big Dipper. From a dark site you can only just spot it as a fuzzy patch though. That's still an impressive achievement if you consider you are gazing at a visitor from the distant Oort cloud with your own eyes. But binoculars or a small telescope will make for an even more enjoyable view of this Comet ZTF in the coming days.
TubbyTimothy t1_j6d13o0 wrote
Reply to comment by subliver in Today in 1986 @ 9:39 AM EST, the Space Shuttle Challenger Disaster Occurred by DogBarq
Omg I was in second grade too! I don’t remember much leading up to it but I remember watching the coverage in class.
I also remember writing notes and stuff to survivors/astronauts families
[deleted] t1_j6d0rlp wrote
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[deleted] t1_j6d06w0 wrote
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EmpathyZero t1_j6d00pj wrote
Reply to My Personal Story About Challenger by MoabEngineer
I was at home watching cartoons when my mom switched it over for the Challenger launch. I still remember her gasp behind me as we watched it live.
[deleted] t1_j6dafhw wrote
Reply to Comet ZTF over Mount Etna by Dario Giannobile by SuppressiveFire
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