-
May 1, 1006
SN 1006
SN 1006 was a supernova, widely seen on Earth beginning in the year 1006; the Earth was about 7,200 light-years away from the supernova. It was the brightest apparent magnitude stellar event in recorded history, reaching an estimated −7.5 visual magnitude . Which is over ten times as bright as Venus and visible during the daytime. -
Jan 1, 1054
The first supernova
The remnants of this explosion are visible today as the Crab Nebula, which is composed of glowing ejecta of gases flying outward in an irregular fashion and a rapidly spinning, pulsating neutron star, called a pulsar, in the centre. The supernova of 1054 was recorded by Chinese and Korean observers -
Nov 11, 1572
Tycho's nova
Tycho Brahe discovers a supernova (SN 1572) in the constellation Cassiopeia, -
1604 supernova
Supernova 1604, is known as Kepler's Supernova, Kepler's Nova or Kepler's Star, was a of Type Ia supernova that occurred in the Milky Way, in the constellation Ophiuchus. Appearing in 1604, It is 6 kiloparsecs or about 20,000 light-years from Earth. -
andromeda galaxy
A supernova, S Andromedae, is observed in the Andromeda Galaxy leading to recognition of supernovae as a distinct class of novae -
Neutron stars
Fritz Zwicky and Walter Baade propose the neutron star idea and suggest that supernovae might be created by the collapse of normal stars to neutron stars—they also point out that such events can explain the cosmic ray background, -
Cassiopeia A
Cassiopeia A is a supernova remnant in the constellation Cassiopeia and the brightest extrasolar radio source in the sky at frequencies above 1 GHz. The supernova occurred approximately 11,000 light-years away within the Milky Way.In -
crab nebula pulsar
David Staelin, E.C. Reifenstein, William Cocke, Mike Disney, and Donald Taylor discover the Crab Nebula pulsar thus connecting supernovae, neutron stars, and pulsars, -
Type la supernova
Charles Kowal discovers the Type Ia supernova SN 1972e in NGC 5253, which would be observed for more than a year and become the basis case for the type -
G1.9+0.3
Supernova remnant G1.9+0.3 in the constellation Sagittarius is the youngest known supernova remnant in the Milky Way Galaxy.The remnant's young age was established by combining data from NASA's Chandra X-ray Observatory and the VLA radio observatory. It was a type Ia supernova. -
SN 1987
Supernova 1987A was in the outskirts of the Tarantula Nebula in the Large Magellanic Cloud (a nearby dwarf galaxy). It was a formerly extremely faint object attained a magnitude of 4.5 within just a few hours, thus becoming visible to the unaided eye. -
Supernovas brightness
SN 1987A’s brightness peaked in May 1987, with a magnitude of about 2.9, and slowly declined in the following months. -
New technology
New research can measure how far away a Supernova can be based by its brightness, this allows scientists to predict when a supernovas brightness changes. They use this information to measure how much space is expanding in the area. -
RX J0852.0-4622 Vela Junior
It is a supernova remnant. The remnant is located in the southern sky in the constellation Vela ,and sits inside the much larger and older Vela Supernova Remnant, which is why it is often referred to as Vela Junior. -
Supernova support
"Based on Daniel Hudon, scientists now practice the comparison of light emitted from varioous supernova explosions to predict the rate of universe expansion.
