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Star name Temperature ()Spectral type Distance (light years) Notes WISE 0855–0714: 285 Y4 7.426 ± 0.039 [9]WISE 0336-0143B [10]: 295 ± 10 [11]: Y1? 32.7 [12]: spectral type is not yet published, but should be around Y1 if we assume MIRI F480M is similar to W2 and by using Figure 13 from Kirkpatrick et al. 2012 [13] Might be a later spectral type.
PSR J2144−3933 is a pulsar about 180 parsecs (587 light-years) from Earth. It is the coldest known neutron star with a surface temperature less than 42000 Kelvin as measured by the Hubble Space Telescope. [1]
It is the fourth-closest star or (sub-) brown dwarf system to the Sun and was discovered by Kevin Luhman in 2013 using data from the Wide-field Infrared Survey Explorer (WISE). It is the coldest brown dwarf found in interstellar space, having a temperature of about 285 K (12 °C; 53 °F). [4]
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
Main-sequence stars vary in surface temperature from approximately 2,000 to 50,000 K, whereas more-evolved stars – in particular, newly-formed white dwarfs – can have surface temperatures above 100,000 K. [3] Physically, the classes indicate the temperature of the star's atmosphere and are normally listed from hottest to coldest.
A star is a massive luminous spheroid astronomical object made of plasma that is held together by its own gravity.Stars exhibit great diversity in their properties (such as mass, volume, velocity, stage in stellar evolution, and distance from Earth) and some of the outliers are so disproportionate in comparison with the general population that they are considered extreme.
Star Distance ly Notes 1 Proxima Centauri: 4.2 ly (1.3 pc) Part of the α Cen trinary system, the closest neighbouring star system. It is also the nearest neighbouring star. [9] 2 Barnard's Star: 5.95 ly (1.82 pc) Second closest neighbouring star system [16] 3 Wolf 359: 7.86 ly (2.41 pc) Also called CN Leonis: 4 Lalande 21185: 8.3 ly (2.5 pc) 5
Diagram of stellar evolution, showing the various stages of stars with different masses. A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently to no longer emit significant heat or light.