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In combination with a laser-guide-star adaptive optics system which corrects for distortions of incoming light caused by the Earth's turbulent atmosphere, the astronomers were able to sample the light from different parts of the galaxy. Small Doppler shifts of the light between different samples showed that BX442 was indeed a spiral disk ...
TON S180 (abbreviation of Tonantzintla S180) is a Seyfert galaxy located in the southern constellation of Cetus.It is located 827 million light years from Earth. [1] The galaxy is classified as a quasi-stellar object (QSO) because of its high luminosity and is located 3.6 degrees northeast from NGC 253, and 2.8 degrees southeast from NGC 247.
HD1 is one of the earliest and most distant known galaxies yet identified in the observable universe, having a spectroscopic redshift of z = 13.27, meaning that the light from the galaxy travelled for 13.5 billion years on its way to Earth, which due to the expansion of the universe, corresponds to a proper distance of approximately 33.4 billion light-years (10.2 billion parsecs).
GLASS-z12 has a light-travel distance (lookback time) of 13.6 billion years. [5] However, due to the expansion of the universe , its present proper distance is 33.2 billion light-years. [ 5 ] It was discovered alongside another galaxy, GLASS-z10 , comparable to GN-z11 , also one of the oldest galaxies discovered.
NGC 1259 is a lenticular galaxy [2] located about 243 million light-years away [3] in the constellation Perseus. [4] The galaxy was discovered by astronomer Guillaume Bigourdan on October 21, 1884 [5] and is a member of the Perseus Cluster. [6] [5] A type Ia supernova designated as SN 2008L was discovered in NGC 1259 on January 14, 2008. [7] [8 ...
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