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- Tue Oct 09, 2012 7:06 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Simeis 147: Supernova Remnant (2012 Oct 09)
- Replies: 34
- Views: 5267
Re: APOD: Simeis 147: Supernova Remnant (2012 Oct 09)
If the supernova happened 40,000 years ago and light takes 3,000 years to get from there to here, we're seeing what the remnant looked like after 37,000 years of evolution.