Jump to navigation Jump to search
- Its age is only estimated from its distance. The distance is the primary characteristic, deduced from the red-shift. See En wiki's , where proper distance is "where a distant object would be at a specific moment of cosmological time, which can change over time due to the expansion of the universe".
- I'm not inclined to change the article because of the discussion on  shows that simple summaries of this point are difficult to make technically accurate. Macdonald-ross (talk) 13:56, 14 December 2016 (UTC)