Per 
SCP-6808-R1 - the Crab Nebula.
Assigned Containment Procedures
SCP-6808 is uncontainable due to its scale, movement, and unpredictability. Observations are exacted by licensed space telescopes from certain secretive space agencies. Activity of 6808 is to be monitored closely. Any public viewers of 6808 are to be fooled into believing that 6808 is a natural occurence or an illusion.
Description
SCP-6808 refer toward 3 different constellations that are not listed in the 88 scientific constellations, those being listed as: SCP-6808-C1, -C2 or -C3. These constellations are smaller in area than many other non-anomalous constellations in Earth’s night sky, at approximately 30 arc-minutes per constellation. Unofficial names have been given to these constellations by personnel, these unofficial names are Zhihe1 (-C1), Veil2 (-C2) and Song3 (-C3)
SCP-6808 are remarkably fast at 4as per second. Due to this phenomenon, scientists do not believe the components of 6808 are true stars, instead believing they are to be hypervelocity stars, however even this proposal is doubted by some as it seems to violate the speed of light (299,792,458m/s) by moving at about 1,069,062,300,000km/s.
The components of SCP-6808 typically appear to show hostility toward each other in a randomised pattern. Components of 6808 seem to attack each other by attempting to destroy composite stars of the opponent constellation. This phenomenon is cause of multiple well-known supernova remnants such as the Crab Nebula (-R1), the Cygnus Loop (-R2), Cassiopeia A (-R3), Tycho’s Supernova (-R4) and Kepler’s Supernova (-R5).
SCP-6808 has been discovered as a dangerous entity. SCP-6808-C1 and -C2 each hold a magnetar (-C1) and a pulsar (-C2). These two stars are headed toward each other since 19 June 2018, and this could potentially lead to a collision producing a gamma-ray burst. It is unlikely if this catastrophic scenario will be directed at Earth; however, the scenario cannot be fully ruled out.
History
Formation & the Cygnus Loop
SCP-6808 is believed to have been created between approximately 2.1 million years ago (youngest star) and 21.3 million years ago (the oldest star) according to the H-R Diagram for Main-Sequence Stars. It is unknown how the stars got the ability to ‘wander’ on their own accord or attack one another; however, a number of ancient Chinese astronomers had believed them to be descended from Sanxing (The Three Stars) from Chinese mythology.
SCP-6808 is presumed to have been unanomalous for 21,280,000 years because no evidence of a supernova caused by SCP-6808 prior to the supernova of the source of the Cygnus Loop. The Cygnus Loop was created from SCP-6808-C2 and a separate non-anomalous star, and is assumed to be an ‘accidental’ remnant.
Discovery
SCP-6808 was discovered in 1054 due to the supernova of the Crab Pulsar located within the Crab Nebula which has been explained as a supernova remnant resulting from a collision between stars in SCP-6808-C1 and -C3 as observed via composition imagery.
Chinese astronomers in the Song Dynasty observed SN 1054 describing it as the collision of two ‘heavenly bodies’ and claiming that it was an occurence that would only occur ‘every thousand years’. The Chinese Astronomers claimed that as the occurence was an extremely rare sight, that it shall mark the beginning of the Zhihe Era of Chinese history.
Early Scientific Revolution
During the time of the Scientific Revolution, multiple remnants of SCP-6808 activity was discovered; either as an observation of a supernova or the discovery of a supernova remnant.
Most confirmed remnants of SCP-6808 activity were discovered in this time period by multiple astronomers, such as Johannes Kepler, Charles Messier and William Herschel. SCP-6808-R4 was one of the first observed as a supernova during the Scientific Revolution in 1572 by Tycho Brahe. The supernova was described as a ‘new star’ by Brahe, and was used to build upon the idea of the studies of the early modern astronomy.
In 1604, SCP-6808 was discovered by Johannes Kepler during the supernova of Kepler’s Star. As the supernovas of 1572 and 1604 were absurdly close together in the sky, some astronomers in the scientific community believed that Tycho’s and Kepler’s Supernova were both connected, possibly by a binary star, or a stellar collision or other phenomenon, however most of these proposals were disregarded within the first few years.
William Herschel
William Herschel was one of the first astronomers to observe that the SCP-6808 constellations did not move in a random wander, but instead in a pattern pertaining to the stars of other constellations now designated as a SCP-6808 constellation.
Herschel also discovered several significant remnants such as the Cygnus Loop, and later on proved that the nebula derived from SCP-6808 due to observing the color of the nebula and matching the nebula’s composition, to that of the stars’ composition. This method was too done with Cassiopeia A and Puppis A, other supernova remnants related to 6808, proving a connection between both the nebulae and 6808.
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Attached Addenda
Addendum 6808-1: On January 18th 2017, a radio signal was received from 6808. The received radio signal lasted approximately 1 minutes and 27 seconds. The following is a transcription of the audio:
6808 Audio Transcript
[0:00] - Audio Clip starts. No significant audio alterations occur.
[0:04] - A star located in SCP-6808-C2 crosses into the radio telescope’s view. Stellar winds can be heard audibly for approximately 27 seconds.
[0:26] - Another star originating from SCP-6808-C3 enters the radio telescope’s line of sight. Audible frequencies from the stars increase in volume. This continues for another 19 seconds.
[0:45] - The two stars collide. A faint collision can be heard in the recording. The sound slowly fades for 42 seconds.
[1:27] - The collision fades to an unresponsive state. The select audio clip ends.
