This article is written in American English, which has its own spelling conventions (color, labor, traveled), and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus.
The latest research on Milky Way galaxy includes data on its Mass, approximate size and number of stars. Size = 175 - 225 000 light years, Mass = 720 - 850 Solar masses, depending which variable used, almost identical to Andromeda Galaxy. Number of stars = 550 billion stars, at least, could be up to a trillion stars. Number of planets = so far we discovered over 3700 planets confirmed in 2700 solar systems observed, most of the planets observed were large therefore easily detectable, and in angle easier for us to observe the observed planets. Number of planets could be way above 5 trillion, number of Earth Like planets - in excess of 550 billion, number of habitable planets, one's imagination. Article needs major update, it looks like it was written in the 1950s. — Preceding unsigned comment added by 184.108.40.206 (talk) 22:47, 16 May 2018
Not clear. This is an active research topic. But, e.g.. a quick search of APOD (apod.nasa.gov), for articles published after 2015, the date of our supporting article, shows that the APOD astronomers still use the 100,000-LY size. E.g.:
This suggests that the astronomical community does not (yet?) fully accept the upper end of the range in the WP article's popular-science 2015 citation, much less your 175-225 KLY range.
I suggest using the 100 KLY size until there is evidence of a consensus for something other than 100 KLY -- at least a consensus of the range of values, if not of a single value. Jmacwiki (talk) 18:30, 19 May 2018 (UTC)