Astronomy:WISEP J190648.47+401106.8

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Short description: Brown dwarf star

Coordinates: Sky map 19h 06m 48.018s, +40° 11′ 08.94″

WISEP J190648.47+401106.8
PIA20055 Cool Star Marked by Long-Lived Storm (Artist's Concept).gif
Artist's conception of WISEP J190648.47+401106.8
Observation data
Equinox J2000.0]] (ICRS)
Constellation Lyra
Right ascension  19h 06m 48.018s[1]
Declination 40° 11′ 08.94″[1]
Details
Radius0.9 RJup
Luminosity0.0002 L
Temperature2,038°C
2,311 K
Database references
SIMBADdata

WISEP J190648.47+401106.8 (shortened to W1906+40) is an L-dwarf star. In 2015 it was shown to have on its surface a storm the size of Jupiter's Great Red Spot. The storm rotates around the star roughly every 9 hours and has lasted since at least 2013, when observations of the storm began.[2]

W1906+40 is 53.3 (with an uncertainty of +1.17, -1.11) light-years from Earth, has an intrinsic brightness of 0.0002 that of the sun, a radius of 0.9 Jupiters, and a surface temperature of 2,311 K. The star emits significant flares.[1][3][4]

References