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- SN_185 abstract "SN 185 (aka RCW 86) was a supernova which appeared in the year AD 185, near the direction of Alpha Centauri, between the constellations Circinus and Centaurus, centered at RA 14h 43m Dec −62° 30′, in Circinus. This "guest star" was observed by Chinese astronomers in the Book of Later Han, and might have been recorded in Roman literature.It remained visible in the night sky for eight months. This is believed to have been the first supernova recorded.The gaseous shell RCW 86 is probably the supernova remnant of this event and has a relatively large angular size of roughly 45 arc minutes (larger than the apparent size of the full moon, which varies from 29 to 34 arc minutes). The distance to RCW 86 is estimated to be 2,800 parsecs (9,100 light-years). Recent X-ray studies show a good match for the expected age.New infrared observations from NASA's Spitzer Space Telescope and Wide-field Infrared Survey Explorer (WISE) reveal how the supernova occurred and how its shattered remains ultimately spread out to great distances. The findings show that the stellar explosion took place in a hollowed-out cavity, allowing material expelled by the star to travel much faster and farther than it would have otherwise.Differing modern interpretations of the Chinese records of the guest star have led to quite different suggestions for the astronomical mechanism behind the event, from a core-collapse supernova to a distant, slow-moving comet – with correspondingly wide-ranging estimates of its apparent visual magnitude (−8 to +4). The recent Chandra results suggest that it was most likely a Type Ia supernova (a type with consistent absolute magnitude), similar therefore to Tycho's star (which had apparent magnitude −4 at a similar distance).".
- SN_185 thumbnail Rcw86_420.jpg?width=300.
- SN_185 wikiPageExternalLink ap060928.html.
- SN_185 wikiPageExternalLink ap111110.html.
- SN_185 wikiPageExternalLink science-environment-15445688.
- SN_185 wikiPageID "7637128".
- SN_185 wikiPageRevisionID "606074362".
- SN_185 caption "Combined X-ray image from Chandra and XMM-Newton of RCW 86. Low energy X-rays are in red, medium energies in green, and high energies in blue. RCW 86 is the probable remnant of SN 185.".
- SN_185 constellation "Circinus and Centaurus".
- SN_185 discovery "0185-12-07".
- SN_185 epoch "J2000".
- SN_185 gal "G315.4−2.3".
- SN_185 hasPhotoCollection SN_185.
- SN_185 host Milky_Way.
- SN_185 magV ""as much as -8"".
- SN_185 name "Supernova SN 185".
- SN_185 notes "Ancient records of SN 185".
- SN_185 notes "description of a supernova.".
- SN_185 notes "may be the earliest written".
- SN_185 snrtype "Shell".
- SN_185 type Supernova.
- SN_185 subject Category:185.
- SN_185 subject Category:Centaurus_(constellation).
- SN_185 subject Category:Circinus_(constellation).
- SN_185 subject Category:Supernova_remnants.
- SN_185 comment "SN 185 (aka RCW 86) was a supernova which appeared in the year AD 185, near the direction of Alpha Centauri, between the constellations Circinus and Centaurus, centered at RA 14h 43m Dec −62° 30′, in Circinus. This "guest star" was observed by Chinese astronomers in the Book of Later Han, and might have been recorded in Roman literature.It remained visible in the night sky for eight months.".
- SN_185 label "SN 185".
- SN_185 label "SN 185".
- SN_185 label "SN 185".
- SN_185 label "SN 185".
- SN_185 label "SN 185".
- SN_185 label "SN 185".
- SN_185 label "SN 185".
- SN_185 label "SN 185".
- SN_185 label "Supernova 185".
- SN_185 label "م أ 185".
- SN_185 sameAs Supernova_185.
- SN_185 sameAs SN_185.
- SN_185 sameAs SN_185.
- SN_185 sameAs SN_185.
- SN_185 sameAs SN_185.
- SN_185 sameAs SN_185.
- SN_185 sameAs SN_185.
- SN_185 sameAs m.0267gq9.
- SN_185 sameAs Q28860.
- SN_185 sameAs Q28860.
- SN_185 wasDerivedFrom SN_185?oldid=606074362.
- SN_185 depiction Rcw86_420.jpg.
- SN_185 isPrimaryTopicOf SN_185.
