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Message
Posted on 7/8/25 at 8:00 am to Chucktown_Badger
quote:
pulsar
Can you pick up the signal with this TV?
It a Quasar TV for you young ones.
Or it could be the time sync signal for a pulsar watch.
Posted on 7/8/25 at 8:31 am to Lowdermilk
Quasar. It’s always a quasar.
Now Betelgeuse‘s supernova needs to hurry up and light up the sky.
Now Betelgeuse‘s supernova needs to hurry up and light up the sky.
Posted on 7/8/25 at 9:07 am to DarthRebel
quote:
This predates organized human civilization.
A light year is a measurement of distance not time
Posted on 7/8/25 at 10:09 am to Howyouluhdat
quote:
A light year is a measurement of distance not time
Yeah and far does light travel in a year.
Posted on 7/8/25 at 10:14 am to Lowdermilk
they were able to zoom in to see the source from ASKAP


Posted on 7/8/25 at 12:05 pm to CleverUserName
quote:
Now Betelgeuse‘s supernova needs to hurry up and light up the sky.
Someone just has to say his name 3 times.
And wait 700 years for the boom to be seen here.
Posted on 7/8/25 at 12:19 pm to CleverUserName
quote:
Quasar. It’s always a quasar.
A quasar is an extremely bright galactic core. The closest known quasar is 600 million light years away. This is a star in the Milky Way, only 15,000 light years away. It’s not a quasar.
Maybe you meant pulsar, which would make more sense. It’s not a traditional pulsar but is probably some other type of exotic neutron star (possibly in a binary system). I think the thing that’s puzzling scientists, other than the x-ray emission, is how slowly these “long period radio transients” appear to be rotating.
Posted on 7/8/25 at 12:24 pm to lostinbr
It could be tumbling in such a way that the beam only points our way once every 44 minutes
Posted on 7/8/25 at 12:34 pm to Howyouluhdat
quote:
A light year is a measurement of distance not time
…right, it’s the distance light travels in a year. Which means the light we see today originated 15,000 years ago. Before human civilization existed.
You can actually take it a step further - if it were a “signal” (it’s not) from a civilization 15,000 light years away who was monitoring Earth, they would be have seen our planet as it existed 30,000 years ago when the signal was first sent. That would have been near the peak of the last ice age.
Posted on 7/8/25 at 12:41 pm to Howyouluhdat
quote:
A light year is a measurement of distance not time
Take it to the next step baw. How fast does light travel in one year?
186,282 miles is the best estimate of that distance over one second (corrected time), right?
This post was edited on 7/8/25 at 4:30 pm
Posted on 7/8/25 at 12:46 pm to Willie Stroker
quote:
186,282 miles is the best estimate of that distance over one second (time), right?
FIFY
Posted on 7/8/25 at 12:56 pm to RIPMachoMan
quote:
15,000 years ago =\= 15,000 light years.

Posted on 7/8/25 at 12:59 pm to GRTiger
Yo umay have something there - SR J2144–3933, one of the slowest rotating pulsars known has a rotation period of about 8.5 seconds
44 secs is SLOWW
44 secs is SLOWW
Posted on 7/8/25 at 1:22 pm to DarthRebel
quote:
Bro, are you serious
Light years is a measurement of distance, not time.
Posted on 7/8/25 at 1:22 pm to Chucktown_Badger
quote:
It could be tumbling in such a way that the beam only points our way once every 44 minutes
I don’t claim to be an astrophysicist so I don’t know whether the physics check out for that or not. I don’t think a spherical object like a star can really “tumble” unless there is, for some reason, an uneven mass distribution. But again I’m not an astrophysicist.
I just know it’s extremely odd, as radio pulsars typically have periods on the order of ~0.2-2 seconds and the radio emissions basically stop once the rotation slows down past that. X-ray pulsars in binary systems can be slower but I don’t think anyone has come up with a model that explains a 44-minute period.
It seems the working theory (from what I’ve read) is that there’s some sort of exotic interaction between binary stars occurring.
Posted on 7/8/25 at 1:24 pm to SundayFunday
quote:
44 secs is SLOWW
It’s 44 minutes.
Posted on 7/8/25 at 1:32 pm to lostinbr
Did I miss in the article how fast the signal was traveling? I know signals can travel light speed, but if it were slower than light speed it could be even older which is cool
Posted on 7/8/25 at 1:36 pm to Lowdermilk
I want t go back to what is underneath the pyramids before we worry about this.
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