R99
R99 (HD 269445) is a star in the Large Magellanic Cloud in the constellation Dorado. It is classified as a luminous blue variable and is one of the most luminous stars known. R99 has a peculiar spectrum that has been described as OBf:pe, "unclassifiable", peculiar WN10, "similar to the unusual LBV HD 5980", "unique", and Ofpe/WN9. The Ofpe/WN9 type remains even though other stars of this type have been reclassified to types between WN9 and WN11. R99 has significant differences to those other stars which preclude it being given a simple WN spectral type: the ultraviolet spectrum is strongly blanketed over a different range of wavelengths; highly ionised iron lines are seen in absorption instead of emission; the Hi lines are unusually narrow and have no P Cygni profile; a lack of any signifi
R99
R99 (HD 269445) is a star in the Large Magellanic Cloud in the constellation Dorado. It is classified as a luminous blue variable and is one of the most luminous stars known. R99 has a peculiar spectrum that has been described as OBf:pe, "unclassifiable", peculiar WN10, "similar to the unusual LBV HD 5980", "unique", and Ofpe/WN9. The Ofpe/WN9 type remains even though other stars of this type have been reclassified to types between WN9 and WN11. R99 has significant differences to those other stars which preclude it being given a simple WN spectral type: the ultraviolet spectrum is strongly blanketed over a different range of wavelengths; highly ionised iron lines are seen in absorption instead of emission; the Hi lines are unusually narrow and have no P Cygni profile; a lack of any signifi
has abstract
R99 (HD 269445) is a star in t ...... l list it only as a candidate.
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Wikipage page ID
46,592,576
Wikipage revision ID
736,563,734
absmag v
appmag v
constell
dist pc
luminosity
prop mo dec
−0.4 ± 2.3
prop mo ra
radial v
radius
temperature
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variable
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R99 (HD 269445) is a star in t ...... profile; a lack of any signifi
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R99
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R99
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