Anyone got help with this but I'm confused with this question.

How do we accurately measure the distance to extremely distant galaxies? like I dont understand I have tried so hard

Question

Anyone got help with this but I'm confused with this question.

How do we accurately measure the distance to extremely distant galaxies?  like I dont understand I have tried so hard

jhaseker · Answer

I have always heard redshift but I don't think thats just right

jhaseker · Answer

Hubble's law just don't make enough sense

unknownnnnnn · Answer

We don’t use redshift by itself. Astronomers build a distance ladder, parallax measures nearby stars, those calibrate standard candles like Cepheids and supernovae, and those distances establish Hubble’s law. Redshift only works because it’s anchored to closer, independently measured distances.

jhaseker · Answer

JADES-GS-z14-0   is 13.43 light years  away estimated and parralax  is light years of but redshift may be anchored closer but it is still extremely far off and I'm trying to get as close as possible

jhaseker · Answer

parralax is a hard decision to use cause it is so far off but we still don't have the technology to get that exact

Lillys2account · Answer

from what i remember you are Using redshift (light getting stretched as the universe expands) and “standard candles” such as T"ype Ia supernovae"
 whose true brightness is known and calibrated with closer-distance methods like parallax and Cepheid variables astronomers build a cosmic distance ladder. With powerful telescopes like JWST, they can measure very precise spectra, study how the light is shifted, and determine how far away objects are and how fast they’re moving, which reveals how the universe is expanding.

Lillys2account · Answer

forgive me if i am wrong.

jhaseker · Answer

I cant say anything Abt u being wrong because I'm trying to get it right myself

jhaseker · Answer

most astronomers usually say redshift or parralax or even standard candles but I still think there's smth to get a closer more accurate answer

Lillys2account · Answer

@jhaseker wrote:

I cant say anything Abt u being wrong because I'm trying to get it right myself

Yeah i get it dw, i had a question like that last year when i was taking astronomy, and that's the answer i always came to the conclusion was, my professor even said it was right

Lillys2account · Answer

@jhaseker wrote:

most astronomers usually say redshift or parralax or even standard candles but I still think there's smth to get a closer more accurate answer

i agree completely

jhaseker · Answer

thanks for your help

Lillys2account · Answer

of course

jhaseker · Answer

I'm learning astronomy and I still have  a lot of questions but dat one was ticking me off not knowing or understanding

Lillys2account · Answer

@jhaseker wrote:

I'm learning astronomy and I still have a lot of questions but dat one was ticking me off not knowing or understanding

Hah yep, that'll do it to ya, do you understand it a lil better now?

jhaseker · Answer

YES ABSOLUTLY

Lillys2account · Answer

@jhaseker wrote:

YES ABSOLUTLY

Awesome!

jhaseker · Answer

I try to learn as much astronomy in one day but one question takes like a month to solve