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With a radiated isotropic-energy of around 1.2×10 55 erg [9] or even 3×10 55 erg, [55] to as high as 1.4×10 57 erg, [56] GRB 221009A, together with events such as 1.5×10 53 AT 2021lwx, the 10 61 erg MS 0735.6+7421 event, and the 5×10 61 erg Ophiuchus Supercluster eruption, are among the most energetic events ever.
ASASSN-15lh (supernova designation SN 2015L) is an extremely luminous astronomical transient event discovered by the All Sky Automated Survey for SuperNovae (ASAS-SN), with the appearance of a superluminous supernova event.
SN 2016aps (also known as PS16aqy and AT2016aps) is the brightest and most energetic supernova explosion ever recorded. [2] [3] It released more energy than ASASSN-15lh. [4]In addition to the sheer amount of energy released, an unusually large amount of the energy was released in the form of radiation, probably due to the interaction of the supernova ejecta and a previously lost gas shell.
This is a list of the brightest natural objects in the sky. This list orders objects by apparent magnitude from Earth , not anywhere else . This list is with reference to naked eye viewing; all objects are listed by their visual magnitudes, and objects too close together to be distinguished are listed jointly.
After traveling for 1.9 billion years to reach Earth—oddly enough, making it one of closest GRBs of its type ever seen—the BOAT functionally blinded most of our space-based gamma ray detectors.
The first star in the list, Godzilla [1] — an LBV in the distant Sunburst galaxy — is probably the brightest star ever observed, although it is believed to be undergoing a temporary episode of increased luminosity that has lasted at least seven years, in a similar manner to the Great Eruption of Eta Carinae that was witnessed in the 19th ...
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It was the brightest comet in over 40 years, and was easily visible to the naked eye for observers in the Southern Hemisphere in January and February 2007. With an estimated peak magnitude of −5.5, the comet was the second-brightest since 1935. [6] Around perihelion on 12 January, it was visible worldwide in broad daylight. Its tail measured ...