Can You Find the Comet? (apod.nasa.gov)
61 points by ColinWright a day ago
albert_e an hour ago
Why are satellite trails npt continuous lines
Is the camera exposure taking a few seconds of break between takes that get stacked later with some "missing" moments in between?
debugnik 29 minutes ago
My guess is the camera itself was taking photos of shorter exposure and the final image was composed in post-production, yes.
originalvichy 3 hours ago
I fear this is only the start of it. A minimum of 3-4 constellations more will probably be launched in the near future (Russia, China, EU).
Their obvious dual-use nature makes them tempting, and a military target if a large conflict will take place in the near future. I hope their lower orbit will help any space junk burn up fast.
ragebol 3 hours ago
Yeah, I kinda get why astronomers are not particularly happy with satellite constellations.
adev_ 2 hours ago
And this is just the visible spectrum.
The situation is one order of magnitude worst in radio-astronomy.
It is fair to state that satellite constellations will certainly be the main obstacle to multiple major scientific discoveries in the next decade.
ultratalk 2 hours ago
Opinion: We need to move our astronomical observation equipment off of Earth and onto other bodies, especially radio astronomy, which, unlike telescopes that operate in other wavelengths, is still affected by Earth's emissions in LEO/near-Earth space. We should put a radio telescope on the far side of the moon [0] to benefit from the thousands of kilometers of lunar material separating Earth's emissions from telescopes.
[0] https://doi.org/10.1109/AERO50100.2021.9438165
[1] https://en.wikipedia.org/wiki/Lunar_Crater_Radio_Telescope
Aboutplants a few seconds ago
adrian_b an hour ago
maxnoe an hour ago
christophilus an hour ago
ciroduran 3 hours ago
I'm rebuilding my RSS feed collection, and having pretty astronomy pictures is a fine addition. Thanks!
gasi 3 hours ago
So cool! Zoom in to find out: https://zoomhub.net/0w8pN
aa-jv an hour ago
Hot take: We're in the first stages of building our own Dyson sphere and therefore comets are only useful in the context of capturing them for that purpose.
;)
w-ll 4 hours ago
if i could imagine what a Sophon from 3 body problem would look like. this is kind of it.
khazhoux 2 hours ago
Is this all / mostly Starlink?
vednig 2 hours ago
It's a set of network satellites for sure either by Eutelsat or Starlink in 70:20 ratio 10% being other providers
But all of them being LEO for sure.
renerick 3 hours ago
That looks so cool, ngl!