OtakuMage t1_iydipbg wrote on November 30, 2022 at 4:29 PM

Reply to comment by darkgothmog in Galactic cannibal Andromeda feasts on smaller galaxies, cosmic leftovers reveal by nikola28

Source on that? Last I heard Andromeda is about twice the size.

darkgothmog t1_iydnhfs wrote on November 30, 2022 at 5:00 PM

I found out an article there https://www.astronomy.com/news/magazine/2018/02/adromeda-is-the-same-size-as-the-milky-way

OtakuMage t1_iydxpco wrote on November 30, 2022 at 6:05 PM

Interesting. Less dark matter isn't what I was referring to specifically though. Still seeing it listed as about 200,000 light-years in diameter, which is double the Milky Way.

MarkHamillsrightnut t1_iyeiekr wrote on November 30, 2022 at 8:17 PM

I think you're right. According to a quick google search Andromeda has about a trillion stars compared to the estimated 300 billion the Milky Way has.

SeeTreeMe t1_iyepo2h wrote on November 30, 2022 at 9:03 PM

It has way more stars but it’s mass could be anywhere from 1.8x ish to actually less than the Milky Way (according to wiki). There’s some pretty big error bars on it.