RE: How Do Scientists Know It's Space Expanding Not Galaxies Moving?
August 15, 2017 at 1:40 pm
(This post was last modified: August 15, 2017 at 1:42 pm by Jackalope.)
(August 10, 2017 at 11:43 am)Anomalocaris Wrote: Yeah, but that's just one supernova. I am not sure that is a standard candle type of supernova. It pins down distance to the megellanic cloud, but doesn't tell much of anything else.
Type Ia supernovae are standard candles. I thought SN 1987A was a type II though.
ETA: Oh shit, I misread your post, you knew this already.