Starship Asterisk*

Ann wrote: ↑Wed Nov 15, 2023 6:02 am What would it look like to return home from outside our galaxy? Okay, so... If you were outside our galaxy, how could you find your way home (even if it was possible for you to travel impossibly fast)?

It's not as if our Sun looks that remarkable from outside or galaxy, and it's not as if it's holding up a sign to stand out in a crowd, and it is not as if our galaxy is providing a GPS with that teardrop-shaped thing pointing at the Sun to guide wayward travellers on their way home.


The Sun is here ESA Gaia DPAC.png


Don't hold your breath looking for that sort of sign on your way back home from intergalactic space!

Or you mean Gaia would provide that sort of detailed Milky Way map to actually make it possible for intergalactic travellers to find their way home? Really?

Ann

https://en.wikipedia.org/wiki/Pioneer_plaque#Sun_and_galactic_landmarks wrote:The radial pattern on the left of the plaque shows 15 lines emanating from the same origin. Fourteen of the lines have corresponding long binary numbers, which stand for the periods of pulsars, using the hydrogen spin-flip transition frequency as the unit. Since these periods will change over time, the epoch of the launch can be calculated from these values.

The lengths of the lines show the relative distances of the pulsars to the Sun. A tick mark at the end of each line gives the Z coordinate perpendicular to the galactic plane.

If the plaque is found, only some of the pulsars may be visible from the location of its discovery. Showing the location with as many as 14 pulsars provides redundancy so that the location of the origin can be triangulated even if only some of the pulsars are recognized.

neufer wrote: Or the APOD featured traveler is moving at about (1.0 - 1.3x10^-24) times the speed of light
while measuring seconds using his own veerrryyyy slow clock.

Wolf wrote:

Wolf wrote:

ta152h0 wrote:
Tdere is another Wolf ere ?

Ja, virtually... but traveling at about 6 kpc/s

If my math is not mistaken,
this means this APOD featured traveler is moving at about 617 billion times the speed of light.

Wolf wrote:

ta152h0 wrote:Tdere is another Wolf ere ?

Ja, virtually... but traveling at about 6 kpc/s

ta152h0 wrote:Tdere is another Wolf ere ?

Brit_in_Exile wrote:Spot the deliberate mistake anyone ?
Shouldn't our favourite star (Sol) seem to get bigger as we get nearer to it ?

Wolf wrote:

heehaw wrote:

Boomer12k wrote:Did that when I was 18. Around 1971'... In Meditation, left my body,
Regardless of what you think, delusion, or illusion, imaginary, or conscious dreaming,...
:---[===] *

heehaw wrote:

Boomer12k wrote:Did that when I was 18. Around 1971'... In Meditation, left my body,
Regardless of what you think, delusion, or illusion, imaginary, or conscious dreaming,...
:---[===] *

I don't discount that! There's much more to the Universe than astronomy: http://henry.pha.jhu.edu/The.mental.universe.pdf

BMAONE23 wrote: I was waiting for a different punch line
Son: Mom, why is the sky so bright? I can't sleep!
Mom: I know son. It's morning and the Sun is up

Boomer12k wrote:Did that when I was 18. Around 1971'... In Meditation, left my body,
Regardless of what you think, delusion, or illusion, imaginary, or conscious dreaming,...
:---[===] *

Ann wrote:

geckzilla wrote:

Sudhamshu wrote:Going by the video, between 10 secs to 20 secs, it appears our Sun (Sol) is part of a Globular Star Cluster. Is that really the case? Or is it a result of insufficient data of the Milky Way so far?

I think it's just marking the edge of the data.

Absolutely. We're not inside a globular cluster. Trust me, we'd notice!

Son: Mom, why is the sky so bright? I can't sleep!

Mom: I know, son. It's all those darn stars in the sky. Darn light pollution!

Ann

I know, I know... our eyes would have adapted so that the brilliant starlight wouldn't bother us...geez...

Ann wrote:I hope Gaia will release a catalog soon, so we can check up its stars!

Ann wrote: I hope Gaia will release a catalog soon, so we can check up its stars!

neufer wrote:

Ann wrote:
Absolutely. We're not inside a globular cluster. Trust me, we'd notice!

• Son: Mom, why is the sky so bright? I can't sleep!
  
  Mom: I know, son. It's all those darn stars in the sky.

Son: Mom, why is the sky so bright? I can't sleep!

Mom: I know, son. We live at 56N and the Sun doesn't set until 10 PM.

Ann wrote:
Absolutely. We're not inside a globular cluster. Trust me, we'd notice!

• Son: Mom, why is the sky so bright? I can't sleep!
  
  Mom: I know, son. It's all those darn stars in the sky.

mwhidden wrote:As we begin to zoom in on the solar system, there is a faint number in the background stars: 3796072587910775936
What is this number and why is it there?

Sudhamshu wrote:Going by the video, between 10 secs to 20 secs, it appears our Sun (Sol) is part of a Globular Star Cluster. Is that really the case? Or is it a result of insufficient data of the Milky Way so far?