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A black star does not require an event horizon, and may or may not be a transitional phase between a collapsing star and a singularity. A black star is created when matter compresses at a rate significantly less than the free fall velocity of a hypothetical particle falling to the center of its star. Quantum processes create vacuum polarization ...
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Black star (semiclassical gravity), a theoretical star built using semiclassical gravity as an alternative to a black hole Saturn , referred to as "Black Star" in ancient Judaeic belief Black dwarf , a theoretical stellar remnant formed after cooling of a white dwarf to a sufficient level where heat is no longer emitted
Harmonic produced this show exclusively for NASA TV UHD, using time-lapses shot from the International Space Station, showing both the Aurora Borealis and Aurora Australis phenomena that occur when electrically charged electrons and protons in the Earth's magnetic field collide with neutral atoms in the upper atmosphere.
KStars participated in Google Summer of Code in 2008, [4] 2009, [5] 2010, [6] 2011 [7] 2012, [8] 2015 [9] and 2016. [10] It has also participated in the first run of ESA's Summer of Code in Space in 2011. [11] It has been identified as one of the three best "Linux stargazing apps" in a Linux.com review. [12]
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Hubble's high resolution view of the star-forming region of Tarantula Nebula and the R136 super star cluster at its center The Tarantula Nebula has an apparent magnitude of 8. Considering its distance of about 49 kpc [ 2 ] (160,000 light-years ), this is an extremely luminous non-stellar object.
Illustration of the orbits of the sun-like star (blue circle) and the stellar black hole (red circle) in Gaia BH1. The star and black hole orbit each other with a period of 185.59 days and an eccentricity of 0.45. The star is similar to the Sun, with about 0.93 M ☉ and 0.99 R ☉, and a temperature of about 5,850 K (5,580 °C; 10,070 °F ...