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Thuban becomes the North Star. [154] 27,800 AD Polaris again is the North Star. [155] 27,000 years The eccentricity of Earth's orbit will reach a minimum, 0.00236 (it is now 0.01671). [156] [157] 66,270 AD Sirius becomes the South Star at 1.6° of the south celestial pole, due to the combination of precession and its own proper motion. [158 ...
The event, known as a nova, will be a once-in-a-lifetime skywatching opportunity for those in the Northern Hemisphere, according to NASA, because the types of star systems in which such explosions ...
Astronomical events are celestial body events such as eclipses, novae or planetary collisions studied by the scientific discipline of astronomy, whereas "astronomy events" refers to social events such as academic meetings, conferences and other such newsworthy occasions relating to astronomy.
SN 1054 remnant (Crab Nebula)A supernova is an event in which a star destroys itself in an explosion which can briefly become as luminous as an entire galaxy.This list of supernovae of historical significance includes events that were observed prior to the development of photography, and individual events that have been the subject of a scientific paper that contributed to supernova theory.
The term is used for violent deep-sky events, such as supernovae, novae, dwarf nova outbursts, gamma-ray bursts, and tidal disruption events, as well as gravitational microlensing. [1] Time-domain astronomy also involves long-term studies of variable stars and their changes on the timescale of minutes to decades.
A tidal disruption event (TDE) is a transient astronomical source produced when a star passes so close to a supermassive black hole (SMBH) that it is pulled apart by the black hole's tidal force. [ 2 ] [ 3 ] The star undergoes spaghettification , producing a tidal stream of material that loops around the black hole.
A star party is a gathering of amateur astronomers for the purpose of observing objects and events in the sky. Local star parties may be one-night affairs, but larger events can last a week or longer and attract hundreds or even thousands of participants. Many astronomy clubs have monthly star parties during the warmer months.
T Coronae Borealis (T CrB), nicknamed the Blaze Star, is a binary star and a recurrent nova about 3,000 light-years (920 pc) away in the constellation Corona Borealis. [11] It was first discovered in outburst in 1866 by John Birmingham , [ 12 ] though it had been observed earlier as a 10th magnitude star. [ 13 ]