Search found 2 matches
- Mon Dec 29, 2008 4:46 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Blue Crab (2008 Dec 27)
- Replies: 23
- Views: 4526
Re: Blue Crab (2008 Dec 27)
Thanks for the response. Let me see if I've got it. It is unknown when the explosion actually happened, but given an estimated distance of 6,000 light years probably around 5,000 BC. We observed it first 1,000 years ago (roughly). So the first supernova "blast" photons from a 6,000 year ol...
- Sun Dec 28, 2008 8:01 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Blue Crab (2008 Dec 27)
- Replies: 23
- Views: 4526
Re: Blue Crab (2008 Dec 27)
This APOD raised a question that's been on my mind, if the supernova is known to have occurred in 1054, why is its estimated distance 6,000 light years away? Don't we KNOW that it is 955 light years away? (I rolled the year 1 tick forward since its just a couple days away)