SN 1181
Supernova in the constellation Cassiopeia / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about SN 1181?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
First observed between August 4 and August 6, 1181, Chinese and Japanese astronomers recorded the supernova now known as SN 1181 in eight separate texts. One of only five supernovae in the Milky Way confidently identified in pre-telescopic records,[1] it appeared in the constellation Cassiopeia and was visible and motionless against the fixed stars for 185 days. F. R. Stephenson first recognized that the 1181 AD "guest star" must be a supernova, because such a bright transient that lasts for 185 days and does not move in the sky can only be a galactic supernova.[2]
Quick Facts Date, Constellation ...
F | |
Date | between August 4 and August 6, 1181 |
---|---|
Constellation | Cassiopeia |
Right ascension | 00h 53m 11.2s |
Declination | +67° 30′ 02.4″ |
Epoch | J2000 |
Remnant | Pa 30 |
Host | Milky Way |
Notable features | Visible at night for 185 days |
Peak apparent magnitude | 0? |
Preceded by | SN 1054 |
Followed by | SN 1572 |
Close