The distance of the Galaxy 2dFGRS TGS261Z012
-
by Haian
We have a Galaxy with radial velocity = 12155 V(km/s) and Redshift = 0.0414 . So the question is What is the galaxy distance? My answer is by using Hubble law and by taking into account that the recent estimation of Hubble constant is 67.80±0.77 according to Planck Mission 2013-03-21, the distance will be about 179.278 Mpc. so it is far galaxy. What do you thing?
Posted
-
by TED91 moderator
Not bad, you got it almost
cdist: 119.6590 Mpc
Posted
-
by Haian
Thank you TED91. Your notice is very powerful.
I think that my result is larger than 119.6590 Mpc because I didn't take into consideration the expansion of the universe during the trip and that our object has long distance (according to the general relativity). I calculated it as Non-comoving observer because I saw the object red-shifted.Posted