 A false-color composite (CXO/HST/Spitzer Space Telescope) image of the supernova remnant nebula from SN 1604 | |
| Event type | Supernova  |
|---|---|
| Ia[1][2] | |
| Date | 8–9 October 1604 |
| Right ascension | 17h 30m 42s |
| Declination | −21° 29′ |
| Epoch | J2000 |
| Galactic coordinates | G4.5+6.8 |
| Distance | Less than 20,000 light-years (6.1 kpc) |
| Remnant | Shell |
| Host | Milky Way |
| Progenitor | White dwarf–red giant double star system |
| Progenitor type | Type Ia supernova |
| Colour (B-V) | Unknown |
| Notable features | Latest observed supernova in the Milky Way. Maintained naked-eye visibility for 18 months. |
| Peak apparent magnitude | −2.25 to −2.5 |
| Other designations | 1ES 1727-21.4, 3C 358, ESO 588-4, GCRV 67121, HR 6515, IRAS 17276-2126, MRC 1727-214, PK 004+06 1, PN G004.5+06.8, 1RXS J173040.4-212836, SN 1604A, IRAS Z17276-2126, SN 1604, AJG 71, CSI-21-17276, CTB 41, Kes 57, MSH 17-2-11, OHIO T -246, PKS 1727-21, PKS 1727-214, PKS J1730-2129, [PBD2003] G004.5+06.8 |
| Preceded by | SN 1572 |
| Followed by | Cassiopeia A (unobserved, c. 1680), G1.9+0.3 (unobserved, c. 1868), SN 1885A (next observed) |
 Related media on Commons | |
SN 1604, also known as Kepler's Supernova, Kepler's Nova or Kepler's Star, was a Type Ia supernova[1][2] that occurred in the Milky Way, in the constellation Ophiuchus. Appearing in 1604, it is the most recent supernova in the Milky Way galaxy to have been unquestionably observed by the naked eye,[3] occurring no farther than 6 kiloparsecs (20,000 light-years) from Earth. Before the adoption of the current naming system for supernovae, it was named for Johannes Kepler, the German astronomer who described it in De Stella Nova.
- ^ a b "Chandra X-Ray Observatory". Kepler's Supernova Remnant: A Star's Death Comes to Life. Retrieved 16 January 2006.
- ^ a b Reynolds, S. P.; Borkowski, K. J.; Hwang, U.; Hughes, J. P.; Badenes, C.; Laming, J. M.; Blondin, J. M. (2 October 2007). "A Deep Chandra Observation of Kepler's Supernova Remnant: A Type Ia Event with Circumstellar Interaction". The Astrophysical Journal. 668 (2): L135–L138. arXiv:0708.3858. Bibcode:2007ApJ...668L.135R. doi:10.1086/522830.
- ^ "APOD: 2013 May 15 – Kepler's Supernova Remnant in X-Rays". NASA.gov. Archived from the original on 10 April 2019. Retrieved 23 February 2024.